FLUID VALVES
STANDARDS INSTITUTE ANSI – American National Standards Institute – American Petroleum Institute API ASME – American Society of Mechanical Engineers AWWA – American Water Works Association MSS-SP – Manufacturers Standardization Society of the Valves and Fittings Industry BSI – British Standards Institute
STANDARDS CODE API 600
Steel Valves - Flanged & Buttwelding Ends
API 602
Compact Steel Gate Valves- Flanged, Threaded, Welding and Extended-Body Ends
API 603
Class 150, Cast, Corrosion-Resistant, Flanged-End Gate Valves
API 608
Metal Ball Valves-Flanged and Butt-Welding Ends
API 609
Butterfly Valves, Lug-Type and Wafer Type
API 598
Valve Inspection & Testing
API 6D
Specification for Pipeline Valves (Gate, Plug, Ball and Check Valves)
ANSI B16.34
Steel Valves - Flanged & Buttwelding Ends
ANSI B16.10
Face-to-Face Dimensions of Ferrous Valves
MSS SP-55
Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components
BS 1873
"Steel Globe Stop and Check Valves For The Petroleum, Petrochemical and Allied Industries
BS 5352
Steel Wedge Gate, Globe and Check Valves 50mm (2") and Smaller For The Petroleum, Petrochemical an Allied Industries.
BS 5160 Specification for steel globe valves, globe stop and check valves and lift type check valves
OBJECTIVES
Type of valves and strainers,steam traps introduction in Piping network. Valve Selection cratia, Moc / Standards Function of various industrial valve How to control the flow of fluids/head Loss Operational ,Size limitations How to prepare to valve specification Type of hydraulic valves, hose fittings
FLUID VALVES
Def’n: devices which control the amount and direction of fluid flow in piping systems
Typically made of bronze, brass, iron, or steel alloy, plastic.
Components: - Valve body - Disc - Seat - Bonnet
- Packing - Packing gland/nut - Stem - Wheel
Valve Selection (6-Q)
What is the valve size? What is the Media in Pipe line? What is the Temperature ? What is the Pressure? What is the Material ? What is the end connection?
Valve Sizes/Application Valve Types Gate ( From 6 NB)
Purpose Isolation
Globe ( From 6 NB)
Example of a system Pump suction,pipe line steam, air, oil and water
Isolation / Throttling Ball ( from 15 NB)
Isolation / Throttling
Seawater, sanitary, trim and drain, air, hydraulic, and oil transfer
Butterfly ( From 50 NB)
Throttling
freshwater, saltwater, lube oil, and chill water
Check ( L.C 6 NB) Swing Ch. V/V- 50 NB(FE)
Allows fluid to flow in one direction; prevents backflow and damage to equipment Protects a system from overpressure
Any
Relief
High pressure system
Media Water is the easy media can be handled any valves . Air is a very simple media. Suspended solid,mixer of air & oil . Hp. Steam for process. Acidic ,brine,clay application.
Temperatute/ Material
Temp -50°C to Below 200°C use soft seated valve (Class VI) Cast iron valves to be use - 10°C to 210°C Carbon steel - 20°C to 425°C Alloy steel - 20°C to 600°C SS Casting : -220°C to 815°C Bronze :160°C to 280°C Inconel : 160°C to 650°C Monel : 160°C to 480°C PVC : 100 °C to 125°C
Pressure
Pressure is always connected with Temperature The material which can handle 16 bar Pr.in 20°C Might not do that in 200°C. Piping flange class is same of valve class. Ex. #150 , #300 or PN10 . PN20, Marked on V/V body as PN 10 men's at 20°C
End Connections
Flanges end. (faces- flate,raised , Groove) Welded end.( Rating #600 ) Threaded end. ( BSP / NPT #2000 lbs ) Socket welded End (#3000 lbs) Brazing / Soldering Ends. ( #150,#300)
Forged Valve
Valve Material for non corrosives application
cont..
Material
ASTM
Service Condition
Trim low Trim high Temp Temp
Carbon steel
A216 Gr WPB
Non corrosive water, oil and gas Temp -30°C to 430 °C
1 or 8
8 or 5
CS Low Temp Services
A352 Gr LCB A352 Gr LC2 A352 Gr LC3
Cryogenic services low Temp. Temp -46°C to 343°C Temp -73°C to 343°C Temp -101°C to 343 °C
2 or 12
12 or 5
Alloy Steel
A217 Gr WC1
Non corrosive water, Oil and Gas Temp -20°F to 875°F
2 or 12
12 or 5
11/4Cr-1/2 Mo
A217 Gr WC6
Non corrosive water, Oil and Gas Temp -20°C to 649°C
8 or 5
5
21/4Cr-1 Mo
A217 Gr WC9
Non corrosive water, Oil and Gas Temp -20°C to 649 °C
8 or 5
5
5%Cr-1/2 Mo
A217 Gr C5
Corrosive water, Oil and Gas Temp -20°C to 649 °C
8 or 5
5
9%Cr-1 Mo
A217 Gr C12
Corrosive water, Oil and Gas Temp -20°C to 649 °C
8 or 5
5
Valve Material for corrosives application Cast Stainless Steel
Corrosive high Temp Applications
18% Cr-8% Ni
A351 Gr CF8
Temp -10°C to 816°C
10 or 12
5
18% Cr-8% Ni(L.Carbon)
A351 Gr CF5
Temp -10°C to 427°C
10 or 12
5
16%Cr-12%Ni2%Mo
A351 Gr CF8M
Temp -254°C to 649°C
10 or 12
5
16%Cr-12%Ni2%Mo (L.Carbon)
A351 Gr CF3M
Temp -10°C to 454°C
10 or 12
5
18% Cr-8% Ni-cb
A351 Gr CF8C
Temp -10°C to 816°C
10 or 12
5
Alloy 20
A351 Gr CN7M
Corrosive Viz hydrogen sulphide dry
13
13 or 14
Monel
A94 M35-1
Hydrochloric acid (Air free) all concentrated
13
9
Hastelloy B
A94 N12MV
Hydro choleric acid <1% at ambient temp
13
Hastelloy C
Hastelloy C
A94 N12MV
Crrosive.CholrineGas,dry etc All ambient temperature
13
Hastelloy C
Material and hardness of stem and backseat bushing or weld deposit STD-API 600 Trim No
Material Type Type
Stem ( HardHB)
Backseat/bushi ng
1
13 Cr
ASTM A276 T410 or T240
200min 275 Max
250 Min
2
18 Cr-8Ni
ASTM A276 T304
Mfg Std
Mfg Std
3
25 Cr-20Ni
ASTM A276 T310
Mfg Std
Mfg Std
4 to 8A
13 Cr
ASTM A276 T410 or T240
200min 275 Max
250 Min
9 and 11
Ni Cu alloy
Mfg Std
Mfg Std
Mfg Std
10 and 12
18 Cr-12Ni
ASTM A276 T316
Mfg Std
Mfg Std
13 and 14
19 Cr-29Ni
ASTM B473
Mfg Std
Mfg Std
Forgings A105
Specification for Carbon Steel Forgings for Piping Applications
A181
Specification for Carbon Steel Forgings, for General-Purpose Piping
A182
Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for HighTemperature Service
A266
Specification for Carbon Steel Forgings for Pressure Vessel Components
A290
Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears
A336
Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts
A350
Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components
A372
Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
A522
Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for LowTemperature Service
A565
Specification for Martensitic Stainless Steel Bars, Forgings, and Forging Stock for High-Temperature Service
A592
Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels
A638
Specification for Precipitation Hardening Iron Base Super alloy Bars, Forgings, and Forging Stock for HighTemperature Service
A646
Specification for Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
A668
Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use
A694
Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings, Valves, and Parts for High-Pressure Transmission Service
A707
Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service
Castings A27
Specification for Steel Castings, Carbon, for General Application
A47
Specification for Ferritic Malleable Iron Castings
A48
Specification for Gray Iron Castings
A74
Specification for Cast Iron Soil Pipe and Fittings
A126
Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings
A128
Specification for Steel Castings, Austenitic Manganese
A148
Specification for Steel Castings, High Strength, for Structural Purposes
A216
Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High- Temperature Service
A217
Specification for Steel Castings, Martens tic Stainless and Alloy, for Pressure- Containing Parts, Suitable for High-Temperature Service
A278M
Specification for Gray Iron Castings for Pressure-Containing Parts for Temperatures Up to 350°C
A278
Specification for Gray Iron Castings for Pressure-Containing Parts for Temperatures Up to 650°F
A319
Specification for Gray Iron Castings for Elevated Temperatures for Non-Pressure Containing Parts
A351
Specification for Castings, Austenitic, Austenitic-Ferritic (Duplex), for Pressure-Containing Parts
A352
Specification for Steel Castings, Ferritic and Martens tic, for Pressure-Containing Parts, Suitable for LowTemperature Service
A487
Specification for Steel Castings Suitable for Pressure Service
A494
Specification for Castings, Nickel and Nickel Alloy
A518
Specification for Corrosion-Resistant High-Silicon Iron Castings
A703
Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
A732
Specification for Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures
A743
Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application
MATERIAL DESIGNATIONS & ASTM STANDARDS FOR VALVES Aluminum
ASTM B-85 Die Cast
3% Ni-Iron
ASTM A-126-Class B Modified
Copper
ASTM B-75 Wrot & ASTM B-88
Ni-Plated Ductile Iron
ASTM B-320 Plating
Bronze
ASTM B-61 Cast ASTM B-62 Cast ASTM B-584, Alloy 844
400 Series Stainless Steel
ASTM B-582 Type 416 Wrot ASTM A-217-Grade CA-15 ASTM A-276 Type 410 Wrot
Silicon Bronze
ASTM B-98 Alloy B ASTM B-371 Wrot
316 Stainless
ASTM 276 Type 316 ASTM A-351-Grade CF-8M
Aluminum Bronze
ASTM B-148 Cast ASTM B-150 Rod
Brass
ASTM B-16 Wrot ASTM B-124 Forged
17-4 PH Stainless Steel
ASTM A-564 Type 630
Ductile Iron
ASTM A-395 Heat Treated ASTM A-536 As Cast
Carbon Steel
ASTM A-216-Grade WCB Cast ASTM A-105 Forged ASTM A-352-Grade LCB Cast
Stellite
AWS 5.13 Hard Face
Gray Iron
ASTM A-126 Class B
Alloy 20
ASTM A-351-Grade CN-7M ASTM B-473 20Cb-3
Monel
ASTM B-164 ASTM 494 Grade M-35-1
Requirement valves in Piping Network 303HR
Tank
103HR P-1 303HR
P-2 103HR
Pumps
103HR
Cap 1203
GLOBE VALVES
Port Types Globe Valve
Most common valve in the plant Body may be straight, angle, or cross type Valve inlet and outlet openings are designed to suit varying requirements of flow Valve may be operated in the partially open position (throttled) Commonly used in steam, air, oil and water lines
Used for a straight line of flow where minimum restriction is desired Not suitable for throttling May be rising stem or nonrising stem
Ball Valve
Most ball valves are quick acting - only require 90o turn to completely open or shut valve Some ball valves may have gearing for easy of use (also increases operating time) Used in seawater, sanitary, trim and drain, air, hydraulic, and oil transfer systems
3 Way Ball Valve 3
way ball are mostly used for filter by pass lines.
Lug types lever operated
Dual flange Type
Butterfly Valve
Lightweight, relatively small, and quick acting May be used for throttling Used in freshwater, saltwater,Utility services
Check Valve
Allows fluid to flow in a system in only one direction May be swing, lift, or Ball type check valves Mounting as per valve Application
Ball
type Lift Check valve Can be Vertical direction Dosing pump
Disc
Check valve ( NRV) Mount horizontal direction
Spring
loades Lift Check valve Can be Fix Vertical direction
Dual
Plate Lift Check valve
Plate
valve
Plate
Type Lift Check
Type Lift Check valve Can be mount any direction
Foot Valves
Foot Valves used for bottom lift pump suction Such as function as like check valves
Diaphragm Valve
Used for corrosive acidic Application For rubber Diaphragan hence temperature limit
Automatic Operated Valve This
types of valve work Pressure Difference between inlet and Outlet Low Pressure Application Agricultural Water supply pump Acts as NRV
Niddle Valve
Fine Regulating valve Used in Instruments, Gauges Operating
Relief Valve
Installed in piping systems to protect them from excessive pressure The relieving pressure is set by the force exerted on the disk by the spring Relief valves may have a lever which allows manual opening of the valve for test purposes
Self Actuated Safety Relief Valve
Valve Operating Devices
Manual lever or wheel ( up to 6”) Handwheel or lever is directly connected to the stem and is operated by hand Gear operated above- 6” Pneumatic ( up to 20”) Air pressure is applied to one side of a piston which is connected to the stem of the valve Motor ( Above 24” ) A hydraulic, electric, or air driven motor is used to turn the stem of the valve Solenoid Uses an Electromagnet to open or close a valve against spring pressure
Valves Operating devices Pneumatic operated
Diaphragm operated
Wheel operated
Positinor device
Motor operated
Gear operated
Gear operated/Manual
Control Valves • There are many different ways to manipulate the flows of material and energy into and out of a process; for example, the speed of a pump drive, screw conveyer, or blower can be adjusted. • However, a simple and widely used method of accomplishing this result with fluids is to use a control valve, also called an automatic control valve.
• The control valve components include the valve body, trim, seat, and actuator.Dighparm, positioner,
Air-to-Open vs. Air-to-Close Control Valves Hydraulic Open control valves • Normally, the choice of A-O or A-C valve is based on safety considerations.
P& ID , Process Logic loop for AUTO Control Valve
FCV
Fine Flow control valves Automatics Operating, Digital Display. Used In Process QCS/DCS System
Control valves Diaphragm operating device can be operate liner motion. Relivetly less operating span Can be operate by AIR media. Use Globe type valve.
Gate Valve Pneumatic Operated •A Pneumatic control valve Provided cylinder (air-to-open) and closed by return spring action. •This is liner movement device.
Globe valve (Diaphragms Operated ) •A Pneumatic control valve (air-to-open) with spring return action. •This is liner motion divice
Butter fly valve ,Actuators Operating device. •This is Rotational Motion device. •Uses an electromagnet to open or close a valve against spring pressure •Air to open and spring pressure close against positioner device control
Control Valve Operating Device.
Operating Divices ( Diphragm devices) Operating purpose required Air for 15 to 30 psi Valve positioner device to regulate the valve flow control functions Auto control and manual setting can done.
Valve Positioner operation logics Positiner is Device in control valve loop of a Flow or Level Control Process that improves Valve response to change in the demand from a process controller Setting can done by auto Mode or Manually Required DC Supply 4 to 20 mA For valve Operating
Electronic Pressure Regulator The IP is an Electronic pressure regulator that converts a variable 4 to 20 mA signal to a proportional pneumatic output. Its compact housing, accessible ports and easy adjustments provide an ideal applications of Process. This economical instrument provides precision air pressure regulation to actuators, valves, positioner and other final control elements. •Required DC Supply 4 to 20 mA- 10 to 12 volt Current
Signal Logice Controller
Input Signal Conversion
Output signal Conversion
Pneumatic Amplifier optional
Positioner unit
Output signal Generator
Feed back
To control valve
Control valve
Input Signal Conversion;- The pneumatic input is converted to Mechanical Motion positioner used pneumatic Amplifier in such cases. Out put Signal:- A Mechanical motion causes a directional control valve to change position & supply Air the actuator, positioner gain will normally developed here usually through signal action. Input Signal Conversion (I/P) :- The input signal sent positioner is two way •A Pneumatic signal can (3-15 psig) ( 6-30 psig) (3-27 Psig) Air directly from controller •An Electrical signal (4-20 mA- 10 volt) from controller that is converted to a pneumatic signal by current to pneumatic (I/P) convector or Voltage to pneumatic ( E/P) convert That is either external or internal to the positioner and regulate valve funection.
Pressure Loss in Valves
Function of valve type and valve position The complex flow path through valves can result in high head loss (of course, one of the purposes of a valve is to create head loss when it is not fully open) V2 Ev are the loss in terms of Ev K 2 g velocity heads p
Leq V 2 V2 hv Kv 2f 2g D g
Determine for valve head loss 1. Globe Valve -25 NB Fluid velocity-1.5 m/sec 2. Gate valve Valve -100 NB Fluid velocity-1.2 m/sec
Guide line for Making V/V specification • Type of valve
(Ball , Gate, Globe, Butterfly)
• Size of valves ( Ex. 25 NB / 100 NB) • End connections ( Screwed, Socketweld, Butweld,Flanged)
• Pressure Rating Class (#150 #300, #600,#800 ) • Body material ( Forged/ Casting) • Trim of valves ( Hard face, stalite) • Seat
( PTFE, Nylon, Metal)
• Operation
( Lever, Gear, Motorized)
• Ex….Ball valve 100 NB Flange end class 300 Body.A216 trim 13% cr, metal seat Lever operated…
STRAINERS
Function • Strainers is to be used for piping design system To be remove foreign partial form water. ie sand, piping corrosive partial from Process Fluids. • Strainers are available for CI, CS,SS of fabricated from pipe shell or Plate.
Y-Type Strainer Note:- Y- type strainer to be fixed in piping line always horizontal of pipe axis.
Basket strainer Basket strainer to be provided in Booster pump line , i.e. Shower system. SS wire mesh size 80 mesh/ 0.25micron
Conical Strainer
•Conical strainer to be provided in large flow rate piping system, i.e. Cooling tower. • While fixing in piping system provide removal spool before strainer • SS wire mesh size 80 mesh/ 0.25micron
Auto / on line Strainer Automatic Motorized operate, self cleaning Auto Strainer. Uses for continuo's operating system
Strainer Specification • • • • • • • •
Type;Y type / Basket Media:water , air & oil Size inlet/out :- 100 NB Inlet flow rate:- 50 M3 / hr Pressure drop:- 0.6 to 1 bar. End connection:- Flanged / Threaded Steel wire mesh:- 0.50u / 80 mesh Body material :- CI / CS / SS/ fabricated
Steam Generation & Condensate Recovery
Ball Float Steam trap Condensate is discharged when the rising level of condensate lifts a float attached to a level valve. A thermostatically operated vent discharges air from the top of the trap. Condensate is discharged continuously as it collects in the trap body.
Thormostatic Steam Trap Operate on the difference in temperature between steam and condensate. When condensate reaches the trap, the filled thermal element opens a pilot valve to allow limited flow. Drain condensate continuously, closing only in the absence of condensate
Inverted Bucket Trap
Inverted bucket trap As the level of condensate rises, it is discharged. Inverted bucket traps require water, called the prime, within the bucket to operate. This trap is most appropriate for steady loads such as on distribution systems. Condensate is discharged intermittently.
Thermodynamic Steam Trap Have a disk situated on a central orifice. As condensate pressure builds, it lifts the disk, passes through the orifice at the centre of the disk and exits through smaller orifices surrounding the disk. Flash steam builds up pressure on top of the disk and closes the orifice. Condensate is discharged intermittently.
STEM TRAP MOUNTINGS
Valve
Separator
Strainer
valve Flot ball trap
Inv.Bucket trap valve
Condensate drain
Thermo Dy.trap
OIL SEPERATOR /FILTER
Ball float trap Specification • • • • • • • • • • •
Type;Steam trap ball float Size inlet/out :80 NB PN / class :10 /150 Inlet flow rate:50 M3 / hr Design pressure:6 bar. Design temperature :- 220oC Capacity :- 250 kg/hr Back pressure:1 bar End connection:Flanged ANSI B16.5 Body material :A126 Gr WCB Float Ball ;SS 304
Thermodynamic trap Specification • • • • • • • • • • •
Type;Steam trap thermodynamic Size inlet/out :25 Nb Class :#800 Inlet flow rate:50 M3 / hr Design pressure:6 bar. Design temperature :- 220oC Capacity :- 100 kg/hr Back pressure :- 1 bar End connection:- Socketweld, ANSI B16.11 Body material :A A105 Internals ;SS 304
HYDRAULICE HOSE 1. Matelice hose Pipes 2. Rubber hose pipes
HYDRAULICE PIPING VIEW
HYDRAULICE END CONNECTIONS
HYDRAULICE FITTINGS
HYDRAULICE POWERPACK&VALVES
Hydraulics Power Pack
Hydraulic Power Supply Pump Check valve Accumulator Pressure relief valve
Pneumatic vs Hydraulic
Common advantages Power actuation Move significant loads Pneumatic Compliance of air Mostly binary control Lightweight Hydraulic Expensive Weight – heavy Precision control Heavy Load
Hyd.Control Valves
Directional control On-off (binary) Spool valve Most common Requires three ports Port 1 is air supply Port 2 goes to actuator Port 3 vents Only actuates in one direction Five port spool valve Port 1 is air supply Port 2 goes to actuator extension Port 3 vents actuator extension Port 4 goes to actuator retraction Port 5 vents actuator retraction
Control Valves
Direction control
Poppet valve Two ports Port 1 Supply Port 2 Actuator No return or venting Controls the flow of fluid medium
Hydraulic Symbols
Tank
Pressure Relief Dashed line is pilot actuated Two position two way valve NO, plunger activated, spring return… P for pressure port Three position four way valve 3 psn (boxes), P pressure, T tank, B port, A port, C1 solenoid, C2 solenoid, spring return
Hydraulic Symbols (cont.)
Actuator
Pump
Two ports, double acting: extension, retraction Triangle points out for pump and in for motor, arrow indicates variable
Mystery Valve
Review of symbols
Actuators
Hydraulic Pneumatic Single acting Double acting Questions Actuation? Neutral position Sizing 1500 psi wp ±100 kip ±0.2 inches Find cylinder size, flow rate in gal/min
Valves Funection. If the pump is the heart of a hydraulic system then the valve is
the brain. Valves are used to perform a large variety of governing and controlling functions. Function:
• Pressure control valves • flow control valves • check valves (non-return valves) • directional control valves
Valves Types. Pressure control valves: • pressure relief valves
• pressure difference valve
• pressure reducing valves
• pressure ratio valve
Pressure relief valve Has the task to limit the pressure in a hydraulic system or in a part of the system. The pressure can rise in a hydraulic system if: - the flow rate from the pump is larger than the flow rate through the actuator - the volume of a closed system is reduced - the load of the actuator rises - heat is introduced into a closed system - the hydraulic resistance of the system rises
Pressure relief valve Hydraulic aggregate: The simplest hydraulic system Pump + pressure relief valve
Qp
psys
Qag user
Qrv M
reservoir
Pressure relief valve The pressure relief valve always has to be matched with the pump. If for example the rotational speed is increased (orange curve) then there will be flow through the aggregate even with higher pressure. Wrong! The last section of the curve has to be at the negative Q plane.
Pilot Operated Preassure relief valve
C
k A 2 c f
Pressure relief valves
Pilot-operated pressure relief valve
1 - Main valve 2 - Pilot valve 3 – Main spool 4 - 5 - 11 - Throttle 6 - 7 - 13 - Operation line 8 - Valve body
9 - Spring 15 - Discharging 1 - főszelep, 2 - elővezérlő szelep, 3 - főtolattyú, 4 - 5 - 11 - fojtás, 6 - 7 - 13 - vezérlő vezeték, 8 - szeleptest, 9 - rugó, 15 - tehermentesítés
Pressure Reducing valves
Direct Operated check Valves
Flow Control Valves
Valves Form
a) Spherical b) c) d) e) Conical
Poppet valve
f) Plate g) Spool valve
Pressure relief valve
Air Control Accessories
Storage Well
Surface Configuration
Cylinder Bank –Compressed Gas Bulk System
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Thank you!
Prepared By. Rajesh Kumdale