Proposed 12' Hot Tap WPS

Company:

Contractor:

PROJECT Company contract No.:

Type of document :

WELDING PROCEDURE SPECIFICATION Company document No.

Revision :

PKC- -SPE-T01-00001

R01

COMPANY DOCUMENT DOCUMENT TYPE :

T01

Document title :

PROPOSED WELDING PROCEDURE SPECIFICATION HOT TAP WELDING STATUS CODE A

TICK

SIGNATURE

ACCEPTED Do not resubmit unless document is modified Operation May proceed ACCEPTED AS NOTED Revise to incorporate comments & resubmit Operation may proceed NOT ACCEPTED Revise to incorporate comments and resubmit Operation must not proceed INFORMATION ONLY No impact on construction programme

B

C

D

R01

16/11/10

IFR

Issued for Client/ Comment

VICTOR

VICTOR

CHIDI

Rev.

Date

Status

Issued for

Originator

Checked

Approved

CONTRACTOR'S CONTRACTOR'S DOCUMENT IDENTIFICATION: JOB CODE: COMPANY CODE:

PKC-

Page :

4 PAGES

1

PROPOSED WELDING PROCEDURE SPECIFICATION HOT TAP WELDING

R01

CHANGE RECORD PAGE REV. N° R01

Status IFR

Description of Revision

Issued for Client/ Comment

2


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PROPOSED WELDING PROCEDURESPECIFICATION (WPS)

Company Name:

PAKCHILL LIMITED

WPS No. :

Client :

Contract No:

Supporting PQR No.(s): TO BE QUALIFIED

Revision No.:

R01

Welding Process(es):

Date: SMAW

16/11/10

Type(s)

Joints (QW-402)

MANUAL 60º-70º

Joint Design : See sketch Backing : ( Yes ) __________ (No) Applicable Code/Spec:

X

8.33 mm

API B31.8, API 2201

2.4 - 3.2 mm

1.6 ± 0.8 mm

Backing Material (Type): N/A

BASE METALS Material Specification: API 5L X 60 Thickness Range : Pipe Dia. Range : FILLER METALS

4.8mm to 19.05mm Group 2 12.75” Group 2 ROOT

FILL/CAP

A5.1

A5.5

E 6010

E 7010

Lincoln Fleetweld 5P+

Lincoln Shieldarc HYP

3

3

Size of Filler Metals

3.2 mm

4.0 mm

Welding Progression:

Downhill

Downhill

Groove Position

5G

5G

Number of welders per joint

two

two

Spec. No. (SFA) AWS No.

Trade name F-No.

WELDING PROCEDURE IN ACCORDANCE WITH API ASME B31.8, AP1 2201

3


R01

POSITIONS (QW-405)

POSTWELD HEAT TREATMENT

4


R01

Positions of Groove

5G

Welding Progression : UP Position(s) of Fillet

N/A

Down ___X___

Temperature Range

N/A

Time Range

N/A

N/A

PREHEAT (QW-406)

GAS(QW-408)

Preheat Temp.: 500C

Percent Composition Gas(es)

Interpass Temp. : 50 ºC MIN - 300 ºC MAX. ( Continuous or Special heating should be recorded) Type of heater to be used: propane gas with rosebudNozzle

Mixture

Flow Rate

Shielding

N/A

N/A

N/A

Trailing

N/A

N/A

N/A

Backing

N/A

N/A

N/A

ELECTRICAL CHARACTERISTICS Current AC or DC:

DC

Amps (Range) :

Polarity:

70-200

Volts (Range):

Tungsten Electrode Size and Type:

DCEP 20-35

N/A

Mode of Metal Transfer for GMAW:

N/A

TECHNIQUE String or Weave Bead :

R/H/P – Stringer. F/C - Weave

Orifice or Gas Cup Size:

N/A

Initial and Interpass cleaning (Brushing, Grinding and etc.) Method of Back Gouging : Angle of Tapping:

:

POWER GRIND AND BRUSH

N/A 90deg

Removal Tapping device :_____After 100% completion of cutting and valve closure Multiple or Single Pass (per side): Multiple or Single Electrode: Travel Speed Range:

MULTIPLE SINGLE ELECTRODE See below

Time lapse between completion of root run and commencement of second pass:

5 minutes

Time lapse between completion of second pass and commencement of other passes: 5 minutes

Welding to be a continuous operation, weld to completion (one heat cycle). Other: Weld Layer(s)

Electrodes shall be transferred to heat quivers with a minimum temperature of 700C Filler Metal Current Type Amp. Volt Speed Process Class Dia.(mm) Polarity Range Range Range (cm/min)

Root

SMAW

E6010

3.2

DCEP

70-120

22-32

22-35

Hot Pass

SMAW

E7010

3.2

DCEP

90-135

24-34

25-45

Fill / Cap

SMAW

E7010

4.0

DCEP

120-200

25-35

10-25

Other

5

HOLD


R01

6

Proposed 12' Hot Tap WPS

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