| Check Valves______________________________________________________ |
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| Description |
1) Swing Check Valve
2) Lift Check Valve
Design Standards
1) BS 1868 / API 6D/ASME B 16.34
2) BS 1868 / ASME B 16.34
Size Range
ANSI Class 150 : 2" to 60 "
ANSI Class 300 : 2" to 60"
ANSI Class 600 : 2" to 60" |
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18"-600# Swing Check Valve |
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TRIM MATERIAL TO BS 1873 |
Trim
No. |
Seat Ring
Surgace |
Wedge Seat
Surface |
Stem |
Backseat
Bushing |
Service Conditions |
1 |
13 Cr. |
13 Cr. |
A276T
410 |
A276T
410 |
Oil and Vapour Service
1000°F (540°C) |
2 |
SS 304 |
SS 304 |
SS 304
A276T
304
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SS 304
A276T
304
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Corrosive Fluids 150°C
(66°C F) to 1100°F (600°C) |
5 |
Stellite |
Stellite |
A276T
410 |
A276T
410 |
For high temperature steam, oil, oil
vapour service, high pressure steam
and water upto 1100°F (593°C) |
8 |
Stellite |
13 Cr. |
A276T
410 |
A276T
410 |
For Steam and water upto
750°F (399°C) |
10 |
SS 316 |
SS 316 |
A276T
316 |
A276T
316 |
Corrosive Fluid and temperature
from 150°C (66°C) to 1500°F (800°C) |
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STANDARD MATERIAL SPECIFICATION |
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Sr.
No. |
Part Name |
1 |
Body (Flanged) |
2 |
Seat Ring (Seal Weld) |
3 |
Disc |
4 |
Hinge |
5 |
Hinge Pin |
6 |
Gasket |
7 |
Cover (Bolted) |
8 |
Body-Cover Joint Stud |
9 |
Body-Cover Joint Nut |
10 |
Stopper Bolt |
11 |
Disc Nut |
12 |
Split Pin |
13 |
End Protector |
14 |
Name Plate & Rivets |
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| MATERIAL OF CONSTRUCTION FOR VALVES (Shell) |
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Cast Steel |
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Alloy Steel |
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Stainless Steel |
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Duplex Stainless Steel |
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| Pressure / Temp. Rating |
ASME B16.34 |
| End Connection |
ASME B 16.5/ASME B 16.47 Series B (Series A Request) / ASME B 16.25 / BS 4504 |
| Face to Face |
ASME B 16.10 / BSEN 558 Part - 1 |
| Testing |
API598/BS 67855 (Part-1) / BS EN 12266(Part -1) / BS 6364 |
| Body /Bonnet Joint |
Bolted Type for 150# TO 600#. |
| Operation |
Dash pot, Dead Weight arrangements |
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