Method Statement for Mechanical Piping

Project Logo

Project Name : LULU HYPERM HYPERMARKET ARKET IN AL MESSILA, MESSILA, DOHA Loc ation : AL MESSILA, MESSILA, DOHA DOHA Project No. : 977 TITLE : METHOD STATEMENT FOR INSTALLATION OF PIPES, FITTINGS & ACCESSORIES FOR DRAINAGE, WATER SUPPLY, FIRE FIGHTING & CHILL ED WATER SYSTEMS Client

METHOD STATEMENT No:

Consultant ltant

Contractor

MEP Contractor

161-MS-MECH –PL-001

REV : 0

ORIGINATOR: ARAB IAN MEP CONTRACTING

DISCIPLINE: MECHANICAL

TITLE : METHOD STATEMENT FOR INSTALLATION OF PIPES, FITTINGS & ACCESSORIES FOR DRAINAGE, WATER SUPPLY, FIRE FIGHTING & CHILLED WATER SYSTEMS

SUBMITTED BY REV

DATE

STATUS

REVISION REVISION DETAILS ARABIA ARA BIA N MEP

0

15-FEB-1 15-FEB-15 5

Status Code: D : Draft P

: Preliminary

FA

REVIEWER/ APPROVER MEDGULF

AEB

FOR REVIEW & APPROVAL APPROVAL

FI : For For Information Information FA : FA : For Approval

FC : For Construction * External Authorizati Authorization on (Client), where required

Distribution :

METHOD STATEMENT FOR INSTALLATION OF PIPES, FITTINGS & ACCESSORIES FOR DRAINAGE, WATER SUPPLY, FIRE FIGHTING & CHILL ED WATER SYSTEMS

AE AEB-CSD Quali uality ty Form orms

Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 1

Project Logo


Consultant ltant

Contractor

MEP Contractor

Table of Contents Page No. 1.0

Scop Scope e /Objec Objecttives……… ves…………………………………………………

2

2.0

Refer Referen enc ce………………………………………….. ….. ………………

2

3.0

Healt Health and Safet Safety y Hazar Hazards……………………………………….

2

4.0

Defi Definit nitions…… ons…………………………………………………………..

3

5.0

Responsi Responsibili bilitties / Supervi Supervisi sion…… on…………………………………….

4

6.0

Procedur Procedures es /Method Method to to be Employed Employed ………………………………

6.1 Handl Handliing & Stor Storag age e …………………………………………………. 5 6.2 7.0

Prep Prepar arat atiion ……………………. …………………………………… 6 Install Installati ation on of UPV UPV Pipes & Fitti Fittings ngs for Drainage services… services……… 7

7.1 Testi Testing (Grav (Graviity leak leak test)…… est)…………………………………………….. 8 8.0

Installation of procedure for Water Supply PPR Pipes & Fittings… 9

8.1 Test Testing Proce Procedur dure…… e……….…………………………………………….. 10 9.0

Installation of procedure for Chilled Water Pipes & Fittings………. 11

9.1 Testing Testing (Hydrost (Hydrostati atic c Pressure Pressure Test) Test) ……………………………….. 12 10.0 Installation Installation of procedure for Fire Fighting Pipes & Fittings… Fittings………. 14 10.1 Testing Testing (Hydrost (Hydrostati atic c Pressure Pressure Test) Test) ……………………………….. 15 11.0 Trai Traini ning ng……… ………………………………………………………………….15 12.0 Worki Working ng Hour Hours

…………………………….. ………………

15

13.0 House Houseke keep epiing…… ng……………………………………………………. .

15

14.0 Plant Plant & Equipment Equipment Requir Requirement …………………………………

15

15.0 Suppor Supportting document documentat atiion……………………….. ……………… 16 16.0 Docume Document ntat atiions ……………………………………………………… 16 17.0 Att Atta achment ………………………………………….. ……………… 16



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 2

Project Logo


Consultant ltant

Contractor

MEP Contractor

Table of Contents Page No. 1.0

Scop Scope e /Objec Objecttives……… ves…………………………………………………

2

2.0

Refer Referen enc ce………………………………………….. ….. ………………

2

3.0

Healt Health and Safet Safety y Hazar Hazards……………………………………….

2

4.0

Defi Definit nitions…… ons…………………………………………………………..

3

5.0

Responsi Responsibili bilitties / Supervi Supervisi sion…… on…………………………………….

4

6.0

Procedur Procedures es /Method Method to to be Employed Employed ………………………………

6.1 Handl Handliing & Stor Storag age e …………………………………………………. 5 6.2 7.0

Prep Prepar arat atiion ……………………. …………………………………… 6 Install Installati ation on of UPV UPV Pipes & Fitti Fittings ngs for Drainage services… services……… 7

7.1 Testi Testing (Grav (Graviity leak leak test)…… est)…………………………………………….. 8 8.0

Installation of procedure for Water Supply PPR Pipes & Fittings… 9

8.1 Test Testing Proce Procedur dure…… e……….…………………………………………….. 10 9.0

Installation of procedure for Chilled Water Pipes & Fittings………. 11

9.1 Testing Testing (Hydrost (Hydrostati atic c Pressure Pressure Test) Test) ……………………………….. 12 10.0 Installation Installation of procedure for Fire Fighting Pipes & Fittings… Fittings………. 14 10.1 Testing Testing (Hydrost (Hydrostati atic c Pressure Pressure Test) Test) ……………………………….. 15 11.0 Trai Traini ning ng……… ………………………………………………………………….15 12.0 Worki Working ng Hour Hours

…………………………….. ………………

15

13.0 House Houseke keep epiing…… ng……………………………………………………. .

15

14.0 Plant Plant & Equipment Equipment Requir Requirement …………………………………

15

15.0 Suppor Supportting document documentat atiion……………………….. ……………… 16 16.0 Docume Document ntat atiions ……………………………………………………… 16 17.0 Att Atta achment ………………………………………….. ……………… 16



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 2

Project Logo


Consultant ltant

Contractor

MEP Contractor

SCOPE & OBJECT OBJ ECTIVES:IVES:1. SCOPE •

This method statement covers covers the site installation of Pipes, Fittings and and Accessories for Drainage, Water Supply, Fire Fighting and Chilled Water System work and associated materials and the requirements of the checks to be carried out for LULU Hypermarket in AlMessila Project.

2. REFERENCES:Project Specification, Volume 3 and section: 19 Local Authority Regulations (QGEWC). QCS 2010 Approved Material Material Submittals Approved Shop Shop Drawings & Co-ordinate Co-ordinate services services drawings.

3. HEALTH & SAFETY HAZARDS:The Safety of all personnel and equipment is our highest priority during the execution of the works: Safety Safety First ! 3.1 Personal Prot ectiv e Equi Equi pment (PPE):(PPE): All project personnel, personnel, subcontractors subcontractors and visitors visitors will be required required to wear wear as a minimum the following PPE: •

Safety boots boots (with (with steel toecaps and and insoles) insoles)

•

Safety helmet

•

Eye protection

•

Dust Masks

Compulsory PPE for labour in addition to the above: •

•

Coverall as protective protect ive clothing Gloves

To be consi dered dered additionally: •

High visibility visibility vest, vest, if working working near near to construction construction traffic traffic

•

Ear defenders, if working near to the noisy equipment & construction construct ion area.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 3

Project Logo

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Loc ation : AL MESSILA, DOHA Project No. : 977 TITLE : METHOD STATEMENT FOR INSTALLATION OF PIPES, FITTINGS & ACCESSORIES FOR DRAINAGE, WATER SUPPLY, FIRE FIGHTING & CHILL ED WATER SYSTEMS Client

Consultant

Contractor

MEP Contractor

3.2 Toolb ox Talks (TBT):Site supervisors will give toolbox talks. All attendees will sign to say they have been briefed and understand all recommendations set out by the Toolbox Talk.

3.3 Material Safety Data Sheets (MSDS): All materials pertaining to the activity have to be identified and all material safety data sheets should be read and understood.

3.4 Lifting : All material handling using cranes and slings will be performed in accordance with Project Safety Manual.

3.5 Scaffoldin g All scaffolding and ladders required for providing access to the workplace will be erected and inspected in accordance with the requirements.

3.6 Signage:

-

All necessary safety warning shall be displayed at the location of the works.

4. DEFINITIONS:QICR -

Qatar Insurance Company

AEB -

Arab Engineering Bureau (Consultant/Engineer)

MEDGULF- Main Contractor AAC -

Arabian MEP Contracting (MEP Contractor)

MS

Method Statement

-

QCP -

Quality Control Procedures

HSE -

Health, Safety and Environment

ITP

Inspection and Test Plan

-

MSDS -

Material Safety Data Sheet


AEB-CSD Quality Forms

Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 4

Project Logo


Consultant

PPE

-

Personal Protective Equipment

QC

-

Quality Control

QCS -

Qatar Construction Specification 2010

RA

Risk Assessment

-

Contractor

MEP Contractor

5. RESPONSIBILITIES/ SUPERVISION:5.1 Project Manager Project Manager shall be responsible for overall management of all construction activities at site.

5.2 Project Engi neer / Site Engi neer Project Engineer / Site Engineer shall be responsible for safe execution of the complete activity including, but not limited to: a) Confirming the installation locations from schedule of approved construction drawings. b) Organizing tools and equipment required to the work site. c) Assigning work crew. d) Responsible to handle and ensure the works are carried out in such a way that no one’s security, safety or health is jeopardized.

5.3 QA/QC Engineer QA/QC Engineer shall be responsible for: a) Ensuring that approved work methods and materials are being used and in conformance with project specifications. b) Stage inspections are surveillance in accordance with ITP. c) Review of QA/QC documents



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 5

Project Logo


Consultant

Contractor

MEP Contractor

5.4 Safety Officer / HSE Offi cer Safety officer / HSE Officer shall be responsible for: Provide safety information and guidance to line supervision on proper HSE procedures, current and potential hazards and employee training requirements. Conducts project HSE inspections and reports infractions to the supervisor and the site manager concerned and subsequently inspects to see that infractions are corrected. HSE officer shall give the necessary instruction to the executing team prior to start the work. Ensuring Tool Box Talk conducted by supervisor.

6. PROCEDURE / METHOD TO BE EMPLOYED: 6.1

Handl ing & Stor age

On receipt of the materials, the materials shall be handled and stored in line with the following procedure: Prior to unloading the Material Arabian MEP Storekeeper shall be check along with QA/QC Engineer that the material delivered is as per the approved material technical submittal and Purchase order. The materials received at site shall be carefully unloaded using adequate manpower and equipments if necessary (i.e. Fork lift, Crane.etc.) under close supervision along with Safety officer such that no damage shall be caused to the materials and injury to personnel. Arabian MEP Storekeeper shall be checking the quantities and sizes of Pipes, Fittings & Accessories received against the delivery documents. If necessary, the receiver should make a report with the transporter. If materials got damaged in various parts are detected, it must be witnessed by a representative of the transporter and a written report shall be made in this regard. Store the materials in a covered or shaded area and as per the manufacturer’s recommendation. Arabian MEP Storekeeper shall provide necessary tagging for easy identification Material Inspection request (MIR) shall be submitted to the Consultant (AEB) along with required documents for approval. After approval of the MIR only, AAC Storekeeper can issue the materials to Site for installation.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 6

Project Logo


Consultant

Contractor

MEP Contractor

6.2 Preparation AAC Site Engineer shall ensure that the relevant shop drawing are approved and issued for construction and required materials are available at site and civil clearances are available. 6.3 Pre ins tallation check •

Ensure that approved and accepted materials are available to carry out the work.

•

Review the IFC and approved Shop drawings for specific areas.

•

Review the Co ordinate service drawings for specific areas if applicable.

•

Physical verification of the materials shall be carried out for any damages prior to taking from store

•

Prior to Commencement of work, areas and access will be inspected & confirm that Site is ready.

•

All relevant documentation (Drawings) and Material applicable to particular section of works will be checked by Site Engineer/ Site supervisor prior to commencement of work.

•

The Site Engineer/ Site Supervisor will give necessary instructions to tradesmen (Electrician) and provide necessary approved construction/shop Drawings.

•

The Site Supervisor/Foremen will also check that proper tools and equipment are available to carry out the work and are in compliance with contract specification.

•

The Site Supervisor also explains the tradesmen regarding safety precautions to be observed.

•

Proper materials including pipes, fittings and associated accessories to be withdrawn from store according to approved shop drawings and good Engineering practice.

•

Testing Instrument should have valid Calibration certificates: Copy of certificates shall be available on site.

7.0 •

Inst allatio n of UPVC Pipes & Fitti ngs for Drainage servi ces Prior to the commencement of work, coordination must be done with other services. All piping installation to be done as per the approved shop drawing, manufacturer recommendation and manuals.

•

Mechanical anchor fasteners to be installed in concrete with necessary inserts, bolts rods ,nuts washers and other accessories shall be installed as per standard practices

•

Additional support for fittings where change in direction of piping must be provided as per the project requirements.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 7

Project Logo


•

Consultant

Contractor

MEP Contractor

Approved type uPVC Pipes are brought to the work place manually from store to the work place with under PMT and HSE supervision

•

Shifting of pipes to the required floors and height to be done by the hoist/crane or by manual handling as possible

•

All uPVC piping supporting system installation to be followed as per the manufacturer recommendation.

•

The exact routing of the pipe lines and location shall be marked at site as per approved shop drawing.

•

Cut the pipe to the required length. In case of change in direction, appropriate bends and fittings shall be used. Remove dirt, scale and debris from inside and outside of the pipes and fittings before assembly. Ensure proper slope and gradient are maintained for all horizontal runs of drainage pipes Remove dirt, scale and debris from inside and outside of the pipes and fittings before assembly.

•

Install pipes free of sag and bends on the installed supports, as required in length.

•

Clean and dry joining surfaces by wiping with Pipe cleaner and clean cloth or paper towels

•

Ensure that the invert level of Floor Drain, Catch Basin, and Floor Trap is inline with the invert level of pipe as shown in shop drawing.

•

All valves will be installed as per the approved shop drawing/ detailed drawings.

•

Pipe runs within buildings should not be laid exactly horizontal but to a slight fall to reduce the risk of air locks forming

•

For ø32 mm and ø50 mm pipes are solvent welded joints, and pipes above ø65 mm are pushfit type joints.

•

Solvent welded joints- Apply solvent cement evenly on both surfaces. Insert the pipe into the socket with slight twisting action up to the socket depth. Ensure that the pipes are cut square and remove burrs before assembling. The pipe should securely fix into the recess of the fitting to ensure leakage free joint

•

Clean and dry joining surfaces by wiping with Pipe cleaner and clean cloth or paper towels. Apply pipe lubricant cement evenly over the mating surface of pipe and fittings.

•

Insert the pipe into the fittings to full depth.

•

Wipe out excess solvent and hold the joint firmly for 2 minutes to dry.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 8

Project Logo


•

Consultant

Contractor

MEP Contractor

Protect the pipe installed during construction period to avoid clogging with debris and to prevent damage from traffic and construction work.

•

Push-fit type joints-Remove factory applied end caps before joining assembly.

•

Ensure that the pipes are cut square and remove burrs before assembling.

•

Clean and dry joining surfaces by wiping with Pipe cleaner and clean cloth or paper towels

•

The gasket shall be as per the approved manufacturer delivery. Elastomeric compression gasket made to match inside hub of pipe to outside diameter of adjoining pipe.

•

Apply pipe lubricant cement evenly over the mating surface of pipe and socket. Insert the pipe into the fittings to full depth. Apply lubricant evenly on both surfaces. Insert the pipe into the fittings with slight twisting action up to the fittings depth.

•

Wipe out excess lubricant and hold the joint firmly for few minutes to dry

•

Before leaving the work space all the open ends of piping, valves, fittings etc will be temporarily sealed with polythene sheets. Ensure that the work place shall be keep clean and tidy.

•

7.1

Mechanical Identification shall comply project specification and approved material submittal TESTING (GRAVITY LEAK TEST)-

•

Ensure that the pipe installation/routing is acceptable and approved

•

Gravity Water test is to be conducted to ensure and prove the tightness of the joints and ensure there are no leaks in the piping system

•

All openings in the piping will be tightly closed by special cast iron pipe plugs or by another suitable means and the system filled with water to the point of overflow from the highest point.

•

The plugs can be temporally opened to make sure that all air has been vented and that water has reached all parts of the system.

•

No section of the pipe shall be tested to less than 1.2mtrs head of water in testing successive section of piping. The whole system shall have been subjected to a height of not less than 1.2 meter head of water

•

The water shall be kept in the system or i n the porti on under test f or at least 30 minutes before inspection starts. While the system is under pressure, a careful inspection shall be made on all pipes and joints. If any leaks in joint found or evidence of defective pipe or fittings are revealed, the defective pipe/fitting should be immediately replaced with new joints and materials.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 9

Project Logo


•

Consultant

Contractor

MEP Contractor

Check the system for any leakage, if there is any leakage rectify the joint and re-start the testing procedure again.

•

Testing will be inspected by Consultant representative for their satisfaction and document for correct test will be maintained by getting approval in test certificate by Consultant representative signature.

•

After the correction is made the gravity test pressure will be maintained for a period of 2 hours and witnessed by the Consultant representative for their satisfaction.

•

After test, release the water from the pipes and properly seal the pipes to prevent any debris going inside.

8.0 INSTALLATION PROCEDURE FOR WATER SUPPLY PPR PIPES & FITTINGS Mark the pipe layout as per the approved shop drawing. 



Support to be fixed using wedge anchor, anchor bolts, threaded rod and clamps as per project specification and approved material submittal.



Cut the pipe to the required length by using pipe cutter and make sure that a straight and clean pipe end results.



Align the pipe before joining together.



Join the pipe using Manufacturer welding device and tools.



Pipe ends must have properly finished square end, pipe surfaces to be joined must properly clean to remove contaminants and foreign materials.



The pipes and fittings should be clamped during welding to eliminate relative movement.



Mark the welding depth with a pencil or marker pen and measurement plate which is to be provided by manufacturer welding kit.



Enter the end of the pipe in to the tool up to the marked depth without twisting it and simultaneously without twisting, push the fitting on the heating tool, observing the general guideline for heating up to time as per manufacturer recommendations.



Timing for heating should not start until the pipe and fitting reaches to the marked welding depth. Both fitting and pipe should be heated for a set time known as per manufacturer’s recommendation. When heating time is completed, the pipe and fitting should be removed from the heating tool and pressed together to the marked welding depth for a few second without twisting a homogeneous structure of the same material is there upon formed.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 10

Project Logo




Consultant

Contractor

MEP Contractor

After finishing the welding process and the devices has been switched off, wait until it has been cooled down before restoring it away.



This process repeated throughout the network of pipe and fittings at the site and combined with other units until closed efficient water delivery system is formed.



Install the valves and fittings as per the shop drawing.



Pressure test shall be done upon completion of the one complete system in a specified area.



In the course of installation, all pipe work and fitting shall be protected all open ends of pipes shall be temporarily plugged to prevent any foreign materials to enter in the system and to prevent dirt accumulation.



Clearance between exposed pipes and the finished surface or wall shall be maintained.



Sleeves shall be provided on all pipes that pass through the walls as per project specification.



All pipe work will be adequately supported as to permit free movements to expansion, contraction, vibration or other changes.



All exposed pipe hangers, rods and fittings without factory finish, shall be primed and painted as per the project specification.



Ensure that the work place shall be keep clean and tidy.

8.1

TESTING PROCEDURE



Ensure joints are complete in the entire section of piping to be tested.



Connect the manifolds with air vents at both ends, install calibrated pressure gauges and air vent.



Connect pump to the manifold for pumping water.



Fill the pipe with water through manifold, keep vents open.



Once water is filled, close the vents and start pumping.



Pressure to be raised till 1.5 times of work pressure.



If any water leak is observed, release the water from the piping and make proper joints in the fittings or as required. After successfully completed the test & witness by the consultant, the test pressure shall be released slowly in order to avoid the sudden contraction and shock.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 11

Project Logo


Consultant

Contractor

MEP Contractor

9.0 CHILLED WATER PIPES & FITTINGS INSTALLATIONS 

Approved type chilled water pipes and fittings are to be brought to the work place manually or mechanically from store with under PMT and HSE supervision.



Shifting of pipes to the required floors and height to be done by the hoist/crane or by manual handling as possible.



Prior to the commencement of work, coordination must be done with other services. All piping installation to be done as per the approved shop drawing, manufacturer recommendation and manuals.



With reference to the approved floor plan shop drawings and the coordination drawings, all routes shall be carefully marked at the bottom of the slab/wall/ as applicable by foreman using a marker and chalk powder and shall be reconfirmed the routes with related MEP services.



Install the pipe sections at height as per approved drawing in a neat and tidy manner



Dielectric joints shall be installed between copper and steel pipes.



Flanges shall be provided on the pipe work systems wherever necessary to connect to components, plant or equipment having flanged connection.



Check and ensure proper and sufficient clearance around pipe for applying insulation/cladding as possible.



Fix the blind plugs/temporary valves on all drain, air vent, pressure gauge, and thermometer and test point tapings as per approved drawings.



Drain points at the lower points and air vents at higher points shall be provided.



Install the piping connections with valves and accessories where ever equipments are installed as per approved drawings.



Valves, strainers accessories, shall be fixed as per the approved



Protect and cover the end point of installed pipes during construction period to avoid clogging with debris and to prevent damage from traffic and construction work.



Prepare the pipe ends according to the type of joints i.e. threaded joints, welded joints/welded fittings. Threaded join ts



Threading as applicable shall be done as per fittings/couplings of manufacturer recommendations.



Threading of the pipes to be carried out by means of threading machine Pipe size 50mm dia and below will be threaded joints connections.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 12

Project Logo


Consultant

Contractor

MEP Contractor



Threading machine will be utilized at required site.



Ensure alignment of pipe to the threading machine before locking by providing pipe stand support at the opposite end.



Pipe threading works should be done by highly skilled operators.



Teflon tape/jute or other suitable materials shall be providing at the threaded portion of the pipe prior to fittings connection.



Slowly tighten the pipes and fittings connection using pipe wrenches contrast to each other up to the desired tightness.



Threaded portion to be covered with jute for proper tightness.



The same point will be follow for all the threaded joints.



Lubrication for the threading machine to be monitored continuously.



The valves, cocks, and strainers will be used wherever applicable as per the approved drawings & contract specification. welded joints



Pipes shall be cleaned internally.



The pipe to be welded is cut to required measurements.



Pipes are installed in position by using proper chain roller/crane/manually.



The pipe and fittings are installed as per approved shop drawings.



To ensure that welding metal or flux will not project into bore of the pipe.



Ensure that wherever piping welding connection to the equipment, valves o other units, the connecting joints will be used by means of unions or flanges for easy removal of servicing and maintenance.



Ensure that the welding rods will be kept in operating temperature.



Ensure flux coating on the welding is chiseled off.



Before leaving the work space all the open ends of piping, valves, fittings etc. will be temporarily sealed with polythene sheets. Ensure that the work place shall be kept clean and tidy.



Ensure that all joint insulation shall be carried out after hydro pressure testing.

9.1 TESTING (HYDROSTATIC PRESSURE TEST) Training – all personnel will be completely trained to carry out the testing activity and method statement briefing to be done. Signage – all necessary safety warning/signage shall be displayed at the location of the works. METHOD STATEMENT FOR INSTALLATION OF PIPES, FITTINGS & ACCESSORIES FOR DRAINAGE, WATER SUPPLY, FIRE FIGHTING & CHILL ED WATER SYSTEMS


Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 13

Project Logo


Consultant

Contractor

MEP Contractor

Test preparation – only, after satisfactory visual inspection have been completed; hydrostatic pressure testing shall be carried out on the installations, test for leaks and defects in new piping, joints and parts of existing piping that have been altered, extended or repaired. Altered, extended or repaired pipes shall not be concealed until it is tested and approved. Ensure that location/area is ready for t esting Ensure that calibrated gauges are being used and test certificates are available. Ensure that Project HSE plan and formats are followed and required permits shall be obtained prior to the testing activity starts. Notify consultant/engineer at least 24 hrs. before inspection date to be made. Ensure that all the pipes with valves package are tested for t heir specified pressure ratings. Subject the piping to static water pressure 1.5 the working pressure without exceeding pressure rating of piping system materials and pipe fittings and valve accessories. Make sure that a minimum of 2 number identical calibrated pressure gauges shall be installed at extremities of the piping circuit to be tested. Test steps – water shall be filled slowly and applied the pressure by utilizing hand pressure pump with pressure gauge duly calibrated. Water shall be filled/pumped from low level to high level so that all the air inside the pipe would be removed and make sure that all entrapped air has been removed before applying required pressure. Pressure shall be applied gradually to reach 1.5 x the working pressure of the piping system. Make sure that cap and subject the piping to static water pressure 1.5 x the working pressure without exceeding pressure rating of piping system materials to avoid damages and accidents. The test pressure shall be conducted and monitored. Isolate test source and stand the pressure for 24 hrs. All pipes and joints shall be carefully inspected. Check the system for any leakage and if any leakage in joints or evidence of defective pipe is observed, the same shall be rectified/replaced. The pressure test shall be repeated after the rectification is carried out. Upon confirmation of ‘NO’ leaks for period not less than 24 hours, invite consultant/client representatives for witnessing and signing off the leak test. After successfully completed the test & witness by the consultant, the test pressure shall be released slowly in order to avoid the sudden contraction and shock. After release of water; properly seal the pipes to prevent any debris going inside.



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 14

Project Logo


10.0 o

Consultant

Contractor

MEP Contractor

INSTALL ATION OF FIRE FIGHTING PIPES, FITTINGS & ACCESSORIES:

With reference to the approved floor plan shop drawings and the co-ordination drawings, all routes shall be carefully marked at the bottom of the slab/wall/ as applicable by Foreman using a marker and chalk powder and shall be reconfirmed the routes with related MEP services.

o

Anchor fasteners shall be installed for support as per the approved support distances for different pipe sizes.

o

All supporting of pipes shall be done as per recommended spacing both horizontally and vertically.

o

Cut the pipes square to required length and ream the pipes to remove burrs and clean thoroughly before installation.

o

The pipe ends shall be joined according to the type of joints i.e. Threaded joints/ grooved coupling/ flanged etc. Pipe ends shall be prepared as per type of joint to be used. The groove shall be prepared and installed as per coupling manufacturer's instruction & grooving equipment supplier.

o

The Pipes shall be tightened with pipe wrench to the required tightening torque.

o

Pipe work shall be installed at height as shown on approved shop drawings, in a neat and tidy manner.

o

Hole saw cutter shall be used to cut holes in the pipe work wherever required for fixing mechanical Tees etc.

o

Sleeves of suitable sizes shall be provided at wall crossings and wherever required.

o

All vertical pipes shall be installed, plumbed with sufficient clearance from the wall / surface.

o

Pipe fittings shall be installed as per approved shop drawing as applicable wherever it is required. All fittings shall be installed at locations where easy accessibility will be available.



Install valves, supervisory Switches, flow switches, pressure gauges etc. as per approved shop drawings and manufacturer’s Instruction.

o

Approved Paint shall be applied to give a smooth and even finish.

o

Open ends of the pipes shall be protected by using temporary plug/ cap/ as applicable to ensure the foreign matter is not allowed to enter installed pipe work.

o

Provide identification and flow directional arrows to the pipe work, valves and other components



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 15

Project Logo


10.1

Consultant

Contractor

MEP Contractor

HYDROSTATIC PRESSURE TEST:

•

All pipes shall be tested hydrostatically in sections by plugging the ends with end plug.

•

Water shall be filled slowly and applied the pressure by utilizing hand pressure pump with pressure gauge duly calibrated and make sure that all entrapped air has been removed before applying required pressure.

•

Water shall be filled / pumped from low level to high level so that all the air inside the pipe would be removed.

•

Pressure shall be applied gradually to reach 1.5times the working pressure of the system and Piping Systems shall be tested hydrostatically.

•

The test pressure shall be conducted, monitored the pressure drop. All pipes and joints shall be carefully inspected and if any leakage in joints or evidence of defective pipe is observed, the same shall be rectified. The pressure test shall be repeated after the rectification is carried out.

•

After successfully completed the test & witnessed by consultant, the test pressure shall be released slowly in order to avoid the sudden contraction and shock.

11.0 TRAINING: All personnel will be competently trained to carry out the operations they are undertaking by Toolbox Talks (TBT). All operatives will receive a site induction into method statements, safety, quality and environment briefing prior to commencing works. 12.0 WORKING HOURS:Statutory Regulations will be strictly followed in summer for the working hours.

13.0 HOUSE KEEPING: At the end of days’ work, site supervisor shall ensure that the working area is kept clean by disposing the waste material at designated area. 14.0 PLANT & EQUIPMENT REQUIREMENT:•

Pipe Cutter.

•

Plumber’s hand tools

•

Files (Flat/Round) & Emery sheets

•

Measuring Tape



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 16

Project Logo


•

Drilling Machine

•

Threading & Grooving Machine

•

Welding machine.

•

Work Benches.

•

Grinding machine

•

Hole saw cutter.

Consultant

Contractor

MEP Contractor

Scaffolding/Ladder

•

PPE

•

•

Equipment to be used for welding(Face shield, Fire Apron, Fire Extinguishers & Fire Blanket )

15. SUPPORTING DOCUMENTATION: This MS to be read in conjunction with the below referenced documents Contract Specification QCS 2010 Approved drawings.

16. DOCUMENDATION:Material Inspection Request (MIR) Work Inspection Request (IR) 17. ATTACHMENT:•

Risk Assessment

•

Inspection & Test Plan (ITP)

•

Installation Check List

•

Test reports



Form No. P07-F06 / Rev. 0 / Nov. 2012

Page 17

AP = Air Pollution LP = Land Pollution WP = Water Pollution RD = Resource Depletion HI = Health Impact GI = Global Impact CW = Controlled Waste

Ref: RA/PMT/HVAC- 001

ARABIAN MEP CONTRACTING W.L.L.

Rev. 0

TASK RISK ASSESSMENT (TRA) / ENVIRONMENTAL IMPACT ASSESSMENT (EIA) FORMAT

Task: Installation of Mechanical pipes, fittings & accessories

Assessed by: (Name)

Signature:

Assessed Date:

Residual Risk Activity

1. Mobilization of materials and equipments to site

Hazards

Vehicle breakdown

Effects

Injury to personnel

Leg al

Sever ity

Proba bility

Risk

2

4

1

8

Damage to property Improper stacking/fall of load

Minimize Risk by ( Risk Reduction Measures)

•

•

Vehicle accident

•

•

Temporary accesses / Diversions

•

Collusion with fixed obects or pedestrain

• •

Overturning of plant Failure lifting devices Unauthorized operation

•

•

Leg al

Tool Box Talk must be conducted relevant to activity A competent banks man wearing fluorescent jacket must be deployed. Use appropriate capacity vehicle as per the load to be transported. Ensure vehicle condition is good/proper maintenance. Drive observing all traffic rules, speed limits, road signs. Proper parking and surveillance to drivers. Reversing Horn /Alarm must be in place and in working order. Banks man is to be assigned while driving inside site. Materials to be securely stacked in vehicles with rope, strap etc.

•

Care must be taken while offloading materials.

•

Competency of operators/ riggers

Severi ty

Proba bility

Risk

4

1

4

1

-1-|Page11

F/HS 024/Rev. 0/Dated 12/8/14




Rev. 0

TASK RISK ASSESSMENT (TRA) / ENVIRONMENTAL IMPACT ASSESSMENT (EIA) FORMAT Residual Risk Activity

2. Manual material handling <25 kg

Handling of pipes/supports /tools etc

Hazards

Heavy objects

Effects

Injury to personnel/ back injury/sprain

Leg al

1

Sever ity

2

Proba bility

2


Risk

4

•

Fitness certificate of plant

•

Third party certification of lifting accessories

•

Leg al

The materials received at site shall be carefully unloaded

using

adequate

manpower

and

1

Severi ty

Proba bility

Risk

2

1

2

equipments if necessary (i.e. Fork lift, Crane.etc.)

Sharp edged objects

under close supervision along with Safety officer such that no damage shall be caused to the

Incorrect posture

materials and injury to personnel •

•

•

•

•

•

F/HS 024/Rev. 0/Dated 12/8/14

Prior to commencement of work/carrying the pipes/materials to the work location - access should be inspected and ensure that the way of traveling is free of obstructions/blockage. Where ever possible use mechanical devices instead of manual handling. When planning the activity, consideration will be given to use of handling aids where possible. Examine size/weight of object before lifting. Observe correct techniques and posture for lifting (ergonomical factors). Seek assistance whenever required/team lifting

-2-|Page11




Rev. 0


Hazards

2. Manual material handling <25 kg

Handling of pipes/supports /tools etc

Heavy objects

Effects

Injury to personnel/ back injury/sprain

Leg al

1

Sever ity

2

Proba bility

2


Risk

4

Leg al

•

Fitness certificate of plant

•

Third party certification of lifting accessories

•

The materials received at site shall be carefully unloaded

using

adequate

manpower

and

Severi ty

Proba bility

Risk

2

1

2

1

equipments if necessary (i.e. Fork lift, Crane.etc.)

Sharp edged objects

under close supervision along with Safety officer such that no damage shall be caused to the

Incorrect posture

materials and injury to personnel •

•

•

•

•

•

Prior to commencement of work/carrying the pipes/materials to the work location - access should be inspected and ensure that the way of traveling is free of obstructions/blockage. Where ever possible use mechanical devices instead of manual handling. When planning the activity, consideration will be given to use of handling aids where possible. Examine size/weight of object before lifting. Observe correct techniques and posture for lifting (ergonomical factors). Seek assistance whenever required/team lifting

-2-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



3. Working height:

Scaffolding

Hazards

at

Personnel falling from height.

F/HS 024/Rev. 0/Dated 12/8/14

Effects

Injury to personnel Damage to property

Leg al

1

Sever ity

4

Proba bility

2


Risk

8

•

Conduct Tool Box Talk.

•

Use PPEs including appropriate gloves.

•

Leg al

Barricade the area and post signs to control movement and working of other people during erection of scaffold and while using the scaffolding

1

Severi ty

Proba bility

Risk

4

1

4

-3-|Page11



Rev. 0



3. Working height:

Scaffolding

Hazards

at

Personnel falling from height.

Effects

Injury to personnel

Leg al

1

Sever ity

4

Proba bility

2


Risk

8

•


•

Use PPEs including appropriate gloves.

•

Damage to property

Leg al

Barricade the area and post signs to control movement and working of other people during erection of scaffold and while using the scaffolding

Severi ty

Proba bility

Risk

4

1

4

1

-3-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Tools and materials falling from height /personnel working at lower level

•

•

•

Unprotected edges

•

Unstable or poorly maintained access

•

•

Deterioration of materials

•

• •

4. Use of ladder

Personnel falling

Damage to property

Portable ladder Step ladder (‘A’ frame)

Injury to personnel

Tools and materials falling

F/HS 024/Rev. 0/Dated 12/8/14

1

1

2

2

•

•

•

Leg al

Severi ty

Proba bility

Risk

1

1

1

provide necessary signage’s to prevent trespassing Incomplete scaffolds must be identified and red tagged. Scaffolding must be inspected and tagged by certified scaffolding supervisor. Full body harness must be used and anchored properly, where required. Proper access and egress must be maintained always. Access must be maintained free of materials. No alteration to the scaffold be made after green tagging, if any alteration, must be re-inspected Conduct Tool Box Talk. Use PPEs including appropriate gloves Ladder must be used for access and/or short duration light duty work

1

Ladders must be checked for defects, length and type before use. Ladders should be secured against slipping at

-4-|Page11



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Tools and materials falling from height /personnel working at lower level

•

•

•

Unprotected edges

•

Unstable or poorly maintained access

•

•

Deterioration of materials

•

• •

4. Use of ladder

Personnel falling

1

1

2

2

Damage to property

Portable ladder Step ladder (‘A’ frame)

Injury to personnel

•

•

Tools and materials falling

•

Leg al

Severi ty

Proba bility

Risk

1

1

1

provide necessary signage’s to prevent trespassing Incomplete scaffolds must be identified and red tagged. Scaffolding must be inspected and tagged by certified scaffolding supervisor. Full body harness must be used and anchored properly, where required. Proper access and egress must be maintained always. Access must be maintained free of materials. No alteration to the scaffold be made after green tagging, if any alteration, must be re-inspected Conduct Tool Box Talk. Use PPEs including appropriate gloves Ladder must be used for access and/or short duration light duty work

1

Ladders must be checked for defects, length and type before use. Ladders should be secured against slipping at

-4-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

2

1

2

bottom and lashed at top. Contact with live overheads

•

The Ladder toppling sideways

•

Place the ladder at base to height ratio 1:4

•

Only one person shall stand at a time on the ladder.

•

Step ladder must be used with sections fully open

•

Do not stand on top three steps.

portable electric tools

(Drilling

F/HS 024/Rev. 0/Dated 12/8/14

Injury to personnel 1

4

2

8

One person to hold the ladder while other is using the ladder

•

Do not overreach from the ladder

•

Do not use metal ladder for electrical work

•


•

*Electric shock *Electrocutio n *Missing guards

Ladder should extend at least 1 metre above landing platform

•

•

5. Use of

Always use two hands (hands must be free) when climbing. Three point contact to be ensured

•

Damage to property •

Donot carry load while using ladder Prior to the use of electrical equipments/tools, the physical conduction of the machine should be properly checked and report for any defects.

1

Ensure adequate guarding of machine/tool is in

-5-|Page11




Rev. 0


Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

2

1

2

bottom and lashed at top. Contact with live overheads

•

The Ladder toppling sideways

•

Place the ladder at base to height ratio 1:4

•

Only one person shall stand at a time on the ladder.

•

Step ladder must be used with sections fully open

•

Do not stand on top three steps.

portable electric tools

(Drilling


4

2

8

One person to hold the ladder while other is using the ladder

•

Do not overreach from the ladder

•

Do not use metal ladder for electrical work

•


•

*Electric shock *Electrocutio n *Missing guards

Ladder should extend at least 1 metre above landing platform

•

•

5. Use of

Always use two hands (hands must be free) when climbing. Three point contact to be ensured

•

Damage to property •

Donot carry load while using ladder Prior to the use of electrical equipments/tools, the physical conduction of the machine should be properly checked and report for any defects.

1

Ensure adequate guarding of machine/tool is in

-5-|Page11

F/HS 024/Rev. 0/Dated 12/8/14




Rev. 0


Machine/ Grinding machine /

Threading machine etc).

Hazards

Fire /Explosion Exposure to fumes Ergonomics Hazard Vibration Noise

Effects

Leg al

Sever ity

Proba bility


Risk

Severi ty

place. •

•

•

•

•

•

•

•

F/HS 024/Rev. 0/Dated 12/8/14

Leg al

Only skilled/ trained personnel must use hand-held grinders, drill machine and threading machine. Ensure pre-use check of integrity of grinding disc for defects/cracks, cable. Grinding disc must be firmly fixed to grinder and not be used above its rated speed/rpm. Dead man’s switch grinding/drilling tool

must

be

provided

to

Disconnect electrical cable and power supply when changing the discs/drilling bit and also when not in use. Relevant Work Permit shall be obtained Ensure correct body position and posture while grinding/drilling. Proper and adequate fire extinguishers must be provided.

•

Proper access and escape route must be provided.

•


•

PPEs including safety glass and face-shield

-6-|Page11

Proba bility

Risk




Rev. 0


Machine/ Grinding machine /

Threading machine etc).

Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

place.

Fire /Explosion

•

Exposure to fumes

•

Ergonomics Hazard Vibration Noise

•

•

•

•

•

•

Only skilled/ trained personnel must use hand-held grinders, drill machine and threading machine. Ensure pre-use check of integrity of grinding disc for defects/cracks, cable. Grinding disc must be firmly fixed to grinder and not be used above its rated speed/rpm. Dead man’s switch grinding/drilling tool

must

be

provided

to

Disconnect electrical cable and power supply when changing the discs/drilling bit and also when not in use. Relevant Work Permit shall be obtained Ensure correct body position and posture while grinding/drilling. Proper and adequate fire extinguishers must be provided.

•

Proper access and escape route must be provided.

•


•

PPEs including safety glass and face-shield

-6-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

2

1

2

combination shall be worn as FACE protection while grinding. •

6. Welding

*Electric Shock


4

2

8

•

Damage to property *Fire Hazard (heat & burns)

•

Health hazards Arc eye •

*Radiation & Fumes

•

•

Proper cable with earth clamp must be used for the return path of the welding machine

Welder in wet condition should not be allowed to weld. Welding machine & the cables should not be kept in wet places. Welding m/c and cables should be checked before starting the job. Welding m/c body earthing must be given.

•

Use appropriate gloves /shoes.

•

•

1

Except the electrode holding jaw, the remaining part of the welding holder should be fully insulated.

•

•

F/HS 024/Rev. 0/Dated 12/8/14

Inspection and supervision use of abrasive wheels

PTW system shall be strictly followed and tool box talk shall be conducted. All the combustible materials should be cleaned off from the welding area. Fire fighting arrangement such as fire extinguisher

-7-|Page11



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

2

1

2

combination shall be worn as FACE protection while grinding. •

6. Welding

*Electric Shock


4

2

8

•

Damage to property *Fire Hazard (heat & burns)

•

Health hazards Arc eye •

*Radiation & Fumes

•

•

Inspection and supervision use of abrasive wheels Proper cable with earth clamp must be used for the return path of the welding machine Except the electrode holding jaw, the remaining part of the welding holder should be fully insulated. Welder in wet condition should not be allowed to weld. Welding machine & the cables should not be kept in wet places. Welding m/c and cables should be checked before starting the job.

•

Welding m/c body earthing must be given.

•

Use appropriate gloves /shoes.

•

•

•

1

PTW system shall be strictly followed and tool box talk shall be conducted. All the combustible materials should be cleaned off from the welding area. Fire fighting arrangement such as fire extinguisher

-7-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

,fire blanket etc must be availed at the work location •

•

•

•

•

•

•

•

•

F/HS 024/Rev. 0/Dated 12/8/14

Welding machine should be switched off when the welder wants to leave the work place even for a short while. While welding in the multistoried structures, the welding sparks should be constrained to the floor in which welding is done, using suitable fire blanket. At the end of job, before leaving the place of work, smoldering fires if any should be put out. Overheating of transformers shall not be allowed. All cable joints should be very rigidly made properly and insulated to avoid cables getting heated up or producing sparks causing fires. Suitable fire extinguishers should be provided near the workplace. For reducing the effect of radiant heat and hot flux suitable fire resistant apron, sleeves, leg guards, glove etc. should be used. Welder should use scratch proof goggles always to avoid getting burns while chipping, cleaning etc. Welder coverall should be full sleeve cotton. And

-8-|Page11

Proba bility

Risk



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

,fire blanket etc must be availed at the work location •

•

•

•

•

•

•

•

•

Welding machine should be switched off when the welder wants to leave the work place even for a short while. While welding in the multistoried structures, the welding sparks should be constrained to the floor in which welding is done, using suitable fire blanket. At the end of job, before leaving the place of work, smoldering fires if any should be put out. Overheating of transformers shall not be allowed. All cable joints should be very rigidly made properly and insulated to avoid cables getting heated up or producing sparks causing fires. Suitable fire extinguishers should be provided near the workplace. For reducing the effect of radiant heat and hot flux suitable fire resistant apron, sleeves, leg guards, glove etc. should be used. Welder should use scratch proof goggles always to avoid getting burns while chipping, cleaning etc. Welder coverall should be full sleeve cotton. And

-8-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

4

1

4

use of abron •

•

•

•

7. Application of Insulation adhesive & sealants.

Exposure to hazardoussubstance


2

Provide proper ventilation to avoid inhalation of fumes. Use appropriate respirator wherever ventilation is not effective. Avoid exposure of direct skin to the radiation.

•

Competency of welder

•

Fire watcher

•

Signage

•

Its mention only in arc welding machine

8

Damage to property

Fire Hazard.

•

Health hazards: skin

•

F/HS 024/Rev. 0/Dated 12/8/14

Use proper eye protecting shield, welding helmet of appropriate etc.

•

•

1

Welding machine shall be located away from flammable sources/areas.

Material Safety Data Sheet (MSDS) must be in place prior to the start of work. Shall be explained to task team. Display of MSDS in work place. Ensure COSHH assessment and in the use of appropriate PPEs /as per manufactures recommendation Material must be kept and handled in safe

1

-9-|Page11



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

Leg al

Severi ty

Proba bility

Risk

4

1

4

use of abron •

•

•

•

7. Application of Insulation adhesive & sealants.

Exposure to hazardoussubstance


2

Use proper eye protecting shield, welding helmet of appropriate etc. Provide proper ventilation to avoid inhalation of fumes. Use appropriate respirator wherever ventilation is not effective. -

•

Avoid exposure of direct skin to the radiation.

•

Competency of welder

•

Fire watcher

•

Signage

•

Its mention only in arc welding machine

•

1

Welding machine shall be located away from flammable sources/areas.

8

Damage to property

Fire Hazard.

•

Health hazards: skin

•

Material Safety Data Sheet (MSDS) must be in place prior to the start of work. Shall be explained to task team. Display of MSDS in work place. Ensure COSHH assessment and in the use of appropriate PPEs /as per manufactures recommendation Material must be kept and handled in safe

1

-9-|Page11

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

allergy •

•

• •

8. Hydrostatic testing

Equipments 1. Pressure gauge 2. Hydraulic pressure pump.

Exposure to high pressure water Exposure to electricity Discharge of water in work area(Environm ental) Damage to equipments/ accessories

Serious Physical Injury (fatality)

1

4

2

8

•

Electrocution Water in work area

•

affecting the people and materials

•

•

•

•

•

F/HS 024/Rev. 0/Dated 12/8/14

Leg al

Severi ty

Proba bility

Risk

2

1

2

manner as per MSDS. Only skilled personnel must allow working with chemicals. Ensure no hot works are at same place /time and place fire extinguisher. Material must be keep in ventilated area Follow exposure limit of chemical as per manufactures recommendation

The system should be checked and tested in accordance with the checklist in relevant method statement.

1

Ensure that all the person who will attend the testing and commissioning are competent enough. Hydrostatic testing equipment should be calibrated and display certification Conduct toolbox talk before starting the activity. All inline instruments shall be removed during testing, temporary blinds will be installed where necessary. Prior to applying pressure in to the system, all piping installations shall be checked for tightness. Testing areas should be cordoned off / isolated.

- 10 - | P a g e 1 1



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

allergy •

•

• •

8. Hydrostatic testing

Equipments 1. Pressure gauge 2. Hydraulic pressure pump.

Exposure to high pressure water Exposure to electricity Discharge of water in work area(Environm ental) Damage to equipments/ accessories

Serious Physical Injury (fatality)

1

4

2

8

•

Electrocution Water in work area

•

affecting the people and materials

•

•

•

•

•

Leg al

Severi ty

Proba bility

Risk

2

1

2

manner as per MSDS. Only skilled personnel must allow working with chemicals. Ensure no hot works are at same place /time and place fire extinguisher. Material must be keep in ventilated area Follow exposure limit of chemical as per manufactures recommendation

The system should be checked and tested in accordance with the checklist in relevant method statement.

1

Ensure that all the person who will attend the testing and commissioning are competent enough. Hydrostatic testing equipment should be calibrated and display certification Conduct toolbox talk before starting the activity. All inline instruments shall be removed during testing, temporary blinds will be installed where necessary. Prior to applying pressure in to the system, all piping installations shall be checked for tightness. Testing areas should be cordoned off / isolated.

- 10 - | P a g e 1 1

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

•

•

•

•

•

•

•

•

•

F/HS 024/Rev. 0/Dated 12/8/14

Leg al

Severi ty

Provide water resistant covers on all live electrical lines which ever directly exposed to the hydro testing area. Warning signs ‘Hydrostatic Testing in progresses must be posted for additional awareness to other people at the site. Before doing pressure testing each valve in the pipe system should be checked by closing and opening to ensure it is working efficiently. Pressurizing the system shall be carried out incrementally. Only competent person is allowed to do hydro testing. Ensure monitoring by site supervisor and safety person Ensure that all operatives have complete PPE’s, prior to start activity. Barricade shall be ensured, area should be cleared, and good housekeeping must be maintained. The water used for testing shall be drained or disposed off safely.

- 11 - | P a g e 1 1

Proba bility

Risk



Rev. 0



Hazards

Effects

Leg al

Sever ity

Proba bility


Risk

•

•

•

•

•

•

•

•

•

Leg al

Severi ty

Proba bility

Risk

Provide water resistant covers on all live electrical lines which ever directly exposed to the hydro testing area. Warning signs ‘Hydrostatic Testing in progresses must be posted for additional awareness to other people at the site. Before doing pressure testing each valve in the pipe system should be checked by closing and opening to ensure it is working efficiently. Pressurizing the system shall be carried out incrementally. Only competent person is allowed to do hydro testing. Ensure monitoring by site supervisor and safety person Ensure that all operatives have complete PPE’s, prior to start activity. Barricade shall be ensured, area should be cleared, and good housekeeping must be maintained. The water used for testing shall be drained or disposed off safely.

- 11 - | P a g e 1 1

F/HS 024/Rev. 0/Dated 12/8/14



Rev. 0



9. Water filling / Leak test

Hand pumps, Gauges, hoses & Hand tool

Hazards

Failure of hoses and connectors

Effects


Leg al

Sever ity

Proba bility

Risk

2

1

2

4


•

•

•

•

•

Leg al

Area should be barricaded & warning signs must be posted, as appropriate. For controlling of critical activity and make the people responsible.

1

Severi ty

Proba bility

Risk

1

1

1

Hand pump and tools must be inspected prior to use. Supervisor shall be Check water hose connections / air lines for integrity prior to commencement of work Appropriate PPEs to be used. All electrics must be protected from getting wet or drenched

Ensure monitoring by site supervisor and safety person. The water used for filling shall be drained or disposed of safely. Contaminated water should be drained in site •

it self - connecting to site drainage system or it should be transported out.

F/HS 024/Rev. 0/Dated 12/8/14

- 12 - | P a g e 1 1




Rev. 0


9. Water filling / Leak test

Hand pumps, Gauges, hoses & Hand tool

Hazards

Effects

Failure of hoses and connectors


Leg al

Sever ity

Proba bility

Risk

2

1

2

4


•

•

•

•

•

Leg al

Area should be barricaded & warning signs must be posted, as appropriate. For controlling of critical activity and make the people responsible.

Severi ty

Proba bility

Risk

1

1

1

1

Hand pump and tools must be inspected prior to use. Supervisor shall be Check water hose connections / air lines for integrity prior to commencement of work Appropriate PPEs to be used. All electrics must be protected from getting wet or drenched

Ensure monitoring by site supervisor and safety person. The water used for filling shall be drained or disposed of safely. Contaminated water should be drained in site •

it self - connecting to site drainage system or it should be transported out.

- 12 - | P a g e 1 1

F/HS 024/Rev. 0/Dated 12/8/14

Project Logo

Project Name :

LULU HYPERMARKET IN AL MESSILA, DOHA

INSPECTION AND TEST PLAN (ITP)

Project No. : 977 Client

Consultant

Contractor

MEP Contractor

1.INSTALLATION OF DRAINAGE/WATER SUPPLY/CHILLED WATER/FIRE FIGHTING PIPES, FITTINGS & ACCESSORIES gr

eering bureauarab engineering bureau arab engineeringbureau arabengineering bureau arab engineering bureau arab engineering bureauarab engineering bureau arab engineeringbureau arabengineering bureau arab engineering bureau arab engineering bureauarab engineering bureau arabengineering bureau arab engineering bureau arab engineering bureauarab engineering bureau arabengineering bureau arab engineering bureau arab engineering bureau arab engineering bureau arabengineeringbureau arab engineering bureauarab engineering bureau arab engineeringbureau arabengineering bureau arab engineering bureau arab en

Verifying Party (Legend):

SC MC CT PM

= Subcontractor = an ontractor = onsutant = ent or

Verification Codes :

H W R S

= Hold Point = Witness Point = Review = Surveillance

- Mandatory - work cannot proceed until inspection activi ty has been signed-off by relevant party. - Veryfying Party to witness. Evidence of witness shall be by signature of relevant Inspection Report. - Inspection and Test documentation to be presented to Consultant or PM for review. - Monitoring of work activities, NO report required.

ITP Ref. No : 161-ITP-MECH -PL-001

3.2

3.3 4

0

Date Prepared : 15-Feb-15

Reference Documents Item Accep tanc e Crit eria / St and ard Activity Description Frequency / Characteristics to be Verified (Specs/Procedures/Dwgs) No. Requirements Material: 1 Check all the delivery materials,proper Approved material submittal &project 1.1 storage & inspection of materials are as Approved material submittal & project specification After recieving specification per approved material submittal 2 Drawings Approved shop drawing During installation Approved shop drawing 2.1 Approved drawings to be used 3 Installation of Fire Fighting Pipes, Fittings & Accessories 3.1

Rev.

Verifying Documents

SC

Verifying Party MC CT

Material Inspection Request

H

H

W

Not Applicable

H

H

S

Approved Method statement, approved shop drawing, After installation /Coordinated services drawing & project specification.

Approved Method statement, approved shop drawing, /Coordinated services drawing & project specification.

Work inspection request & Installation checklist

H

H

W

Installation of Valves & Approved method statement, Approved shop drawing Accessories,Sprinkler, AlarmCheck After installation Valvs,Fire Hose cabinet, Fire Hose Reel & & project specification Fire Extinguisher.etc

Approved method statement ,approved shop drawing & project specification


H

H

W

Approved method statement &project specification

Work inspection request & Pressure test form

H

H

W

Installation of fire fighting pipes & fittings

Hydropressure test

Approved method statement &project specification After installation

Installation of Water Supply PPR Pipes, Fittings & Accessories

4.1

Installation of PPR pipes & fittings




H

H

W

4.2

Installation of Valves & Accessories,Air Vent.etc

Approved method statement, Approved shop drawing After installation & project specification



H

H

W

4.3

Hydropressure test




H

H

W

PM

Project Logo

Project Name :

LULU HYPERMARKET IN AL MESSILA, DOHA

INSPECTION AND TEST PLAN (ITP)

Project No. : 977 Client

Consultant

Contractor

MEP Contractor

1.INSTALLATION OF DRAINAGE/WATER SUPPLY/CHILLED WATER/FIRE FIGHTING PIPES, FITTINGS & ACCESSORIES gr

eering bureauarab engineering bureau arab engineeringbureau arabengineering bureau arab engineering bureau arab engineering bureauarab engineering bureau arab engineeringbureau arabengineering bureau arab engineering bureau arab engineering bureauarab engineering bureau arabengineering bureau arab engineering bureau arab engineering bureauarab engineering bureau arabengineering bureau arab engineering bureau arab engineering bureau arab engineering bureau arabengineeringbureau arab engineering bureauarab engineering bureau arab engineeringbureau arabengineering bureau arab engineering bureau arab en

Verifying Party (Legend):

SC MC CT PM

Verification Codes :

= Subcontractor = an ontractor = onsutant = ent or

H W R S

= Hold Point = Witness Point = Review = Surveillance

- Mandatory - work cannot proceed until inspection activi ty has been signed-off by relevant party. - Veryfying Party to witness. Evidence of witness shall be by signature of relevant Inspection Report. - Inspection and Test documentation to be presented to Consultant or PM for review. - Monitoring of work activities, NO report required.

ITP Ref. No : 161-ITP-MECH -PL-001

3.2

3.3 4

0

Date Prepared : 15-Feb-15

Reference Documents Item Accep tanc e Crit eria / St and ard Activity Description Frequency / Characteristics to be Verified (Specs/Procedures/Dwgs) No. Requirements Material: 1 Check all the delivery materials,proper Approved material submittal &project 1.1 storage & inspection of materials are as Approved material submittal & project specification After recieving specification per approved material submittal 2 Drawings Approved shop drawing During installation Approved shop drawing 2.1 Approved drawings to be used 3 Installation of Fire Fighting Pipes, Fittings & Accessories 3.1

Rev.

Verifying Documents

SC


Material Inspection Request

H

H

W

Not Applicable

H

H

S




H

H

W

Installation of Valves & Approved method statement, Approved shop drawing Accessories,Sprinkler, AlarmCheck After installation Valvs,Fire Hose cabinet, Fire Hose Reel & & project specification Fire Extinguisher.etc



H

H

W



H

H

W

Installation of fire fighting pipes & fittings

Hydropressure test


PM

Installation of Water Supply PPR Pipes, Fittings & Accessories

4.1

Installation of PPR pipes & fittings




H

H

W

4.2

Installation of Valves & Accessories,Air Vent.etc

Approved method statement, Approved shop drawing After installation & project specification



H

H

W

4.3

Hydropressure test




H

H

W

Accep tanc e Crit eria / St and ard Requirements

Verifying Documents

Item No. 5

Reference Documents (Specs/Procedures/Dwgs)

Activity Description

Frequency / Characteristics to be Verified

SC


Installation of Drainage system UPVC Pipes, Fittings & Accessories

5.1

5.2

5.3

6

Installation of UPVC pipes & fittings

All pipes arelaid and leveled properly.Pipe joints are made properly and tight & secure.

Gravity testing of drainage pipes




H

H

W

Approved method statement &Approved shop drawing



H

H

W


Work inspection request & Gravity test form

H

H

W

After installation

Approved method statement & project specification After installation

Installation of Chilled Water System Pipes, Fittings & Accessories

6.1

Inspect the installation of chilled water pipes and fittings.




H

H

W

6.2

Check the installation of valves & accessories are installed as per the approved shop drawing.




H

H

W

6.2

Hydro static pressure test

Approved method statement, approved shop drawing After Installation & project specification.

Approved method statement, approved shop drawing & project specification.


H

H

W

6.3

Check the insulation are done properly




H

H

W

Prepared by (Contractor) : Name : Signature :

Name : Date :

Signature :

Date :

PM

Item No. 5

Reference Documents (Specs/Procedures/Dwgs)

Activity Description

Frequency / Characteristics to be Verified

Accep tanc e Crit eria / St and ard Requirements

Verifying Documents

SC


PM

Installation of Drainage system UPVC Pipes, Fittings & Accessories

5.1

5.2

5.3

6

Installation of UPVC pipes & fittings

All pipes arelaid and leveled properly.Pipe joints are made properly and tight & secure.




H

H

W

Approved method statement &Approved shop drawing



H

H

W


Work inspection request & Gravity test form

H

H

W

After installation

Approved method statement & project specification After installation

Gravity testing of drainage pipes

Installation of Chilled Water System Pipes, Fittings & Accessories

6.1

Inspect the installation of chilled water pipes and fittings.




H

H

W

6.2

Check the installation of valves & accessories are installed as per the approved shop drawing.




H

H

W

6.2

Hydro static pressure test




H

H

W

6.3

Check the insulation are done properly




H

H

W

Prepared by (Contractor) : Name :

Name :

Signature :

Date :

Project Logo

Signature :

Date :

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Loc ation : AL MESSILA, DOHA Project No. : 977 TITLE : CHECK LIST FOR INSTALLATION OF FIRE FIGHTING PIPES, FITTING & ACCESSORIES Client

S.No.

1. 2. 3.

4. 5. 6.

Consultant

Contractor

Description

Check materials are as per approved material submittal. Ensure the type, Size and routing of fire fighting pipes. Check hangers and supports are provided at specified intervals and as per the approved drawings. Check the joints & flanges are correctly made, joint and sealed with approved method and as per Manufacturer’s recommendation. Check the Installation is Co ordinates with other services.. Check the Valves, gauges & strainers etc. are installed as per approved drawing.

Yes

MEP Contractor

No

Remarks

Project Logo

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Loc ation : AL MESSILA, DOHA Project No. : 977 TITLE : CHECK LIST FOR INSTALLATION OF FIRE FIGHTING PIPES, FITTING & ACCESSORIES Client

S.No.

1. 2. 3.

4. 5. 6. 7. 8. 9.

Consultant

Contractor

Description

Yes

Check materials are as per approved material submittal. Ensure the type, Size and routing of fire fighting pipes. Check hangers and supports are provided at specified intervals and as per the approved drawings. Check the joints & flanges are correctly made, joint and sealed with approved method and as per Manufacturer’s recommendation. Check the Installation is Co ordinates with other services.. Check the Valves, gauges & strainers etc. are installed as per approved drawing. Check the sleeves are installed at wall crossing. Ensure adequate space is available for maintenance and removal of valves, gauges, strainers etc. as applicable. Check identification, valve tags, flow direction are provided as per specification.

10. 11. Comments:

ARABIAN MEP(Submitted By) ENGINEER Signature Name Date

QA/QC

AEB (Approved By)

MEP Contractor

No

Remarks

Project Logo

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Loc ation : AL MESSILA, DOHA Project No. : 977 TITLE : CHECK LIST FOR INSTALLATION OF PPR PIPES, FITTING & ACCESSORIES Client

S.No.

1. 2. 3.

4. 5. 6. 7. 8. 9. 10.

Consultant

Contractor

Description

Yes

Check the materials are as per approved material submittal. Ensure the type; Size and routing of pipes are as per the approved drawings. Check hangers and supports are provided at specified intervals and as per the approved drawings. Check the joints & flanges are correctly made, joint and sealed with approved method and as per Manufacturer’s recommendation. Check the Installation is Co-ordinates with other services. Check the Valves, gauges & water hammer arrestor etc. are installed as per approved drawing. Check the sleeves are installed at wall crossing. Ensure adequate space is available for maintenance and removal of valves, gauges, etc. as applicable. Check identification, valve tags, flow direction are provided as per specification. Check that the installation is free from any mechanical damages.

11. Comments:


QA/QC

AEB (Approved By)

MEP Contractor

No

Remarks

Project Logo

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Loc ation : AL MESSILA, DOHA Project No. : 977 TITLE : CHECK LIST FOR INSTALLATION OF UPVC PIPES, FITTING & ACCESSORIES Client

S.No.

1. 2. 3.

4. 5.

Consultant

Contractor

Description

Yes

Check the sizes of drainage pipe & fittings are as per the approved material submittal and drawing. Ensure the routing of pipes are as per the approved drawings. Check hangers and supports are provided at specified intervals and as per the approved drawings. Check the pipe joints are correctly made, joint and sealed with approved method and as per Manufacturer’s recommendation. Check the Installation is Co-ordinates with other services.

6.

Check if necessary plug installed.

7.

Check the sleeves are installed at wall crossing.

8. 9. 10. 11.

Ensure adequate space is available for maintenance and removal of valves, gauges, etc. as applicable. Check identification, valve tags, flow direction are provided as per specification. Check that the piping are laid and leveled properly. Gravity test is conducted.

Comments:


QA/QC

AEB (Approved By)

MEP Contractor

No

Remarks

Project Logo

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Loc ation : AL MESSILA, DOHA Project No. : 977 TITLE : CHECK LIST FOR INSTALLATION OF PIPES, FITTING & ACCESSORIES FOR CHILLED WATER SYSTEM Client

S.No.

1. 2. 3.

4.

5. 6. 7. 8. 9. 10. 11.

Consultant

Contractor

Description

Yes

Check the materials are as per approved material submittal. Ensure the type; Size and routing of pipes are as per the approved drawings. Check hangers and supports are provided at specified intervals and as per the approved drawings. Check the joints & flanges are correctly made, joint and sealed or welded with approved method and as per Manufacturer’s recommendation. Check the Installation is Co-ordinates with other services. Check the Valves, gauges, flexible connector & Strainers etc. are installed as per approved drawing. Check the sleeves are installed at wall crossing. Ensure adequate space is available for maintenance and removal of valves, gauges, etc. as applicable. Check identification, valve tags, flow direction are provided as per specification. Check that the installation is free from any mechanical damages. Check all insulation joints are sealed properly

Comments:


QA/QC

AEB (Approved By)

MEP Contractor

No

Remarks

Project Logo

Project Name : LULU HYPERMARKET IN AL MESSILA, DOHA Locat ion : AL MESSILA, DOHA Project No. : 977 TITLE : PRESSURE

TEST FORM

Client

Consultant

Contractor

MEP Contractor

PROJECT NAME:

LULU HYPERMARKET IN AL MESSILA

SYSTEM :

DATE OF TEST :

TYPE OF TEST : HYDRO TEST

WORKING PRESSURE ________bar

TEST MEDIUM / TEMP :______

REQUIRED TEST PRESSURE: _______bar

TEST STARTING TIME:______

TEST ENDING TIME:______

PRESURE HOLDING TIME :____24___hrs PRESSURE GAUGE SERIAL NO.:

RESULT :

ACCEPT ______________ REJECT

______________

REMARK :

Signature Name Date

SUBMITTED BY

APPROVED BY

ARABIAN MEP

AEB

Method Statement for Mechanical Piping

Recommend Documents