Gate valves are heavy duty, outside screw & yoke type, bolted bonnet, rising stem with non rising hand wheel. Straight through bore design assures minimum turbulence, erosion and resistance to flow. The most advanced design features provides the ultimate in dependable, economic flow control. They are available in wide range of sizes and weights. These are widely suited for high pressure and temperature and variety of fluids.Gate valves are adequate for all service media along with Hydrogen service, Oxygen service, Hydrocarbon service and NACE applications. Other optional features like Live loading, lantern ring, Bleed holes, purging lines and other features are available on request.
Gate valves are used for On-Off control. Gate valves offer very little resistance to fluid flow in fully open position and also have small pressure drop across the valve. Gate valves of the same size are cheaper than globe valves. Gate valves because of their design have very little fluid trapping in the line. Gate valves are unidirectional and can be put around in any way.
Valve Type
Class Rating | Size Range | Shell Material As Per Specification | |
Gate | 150# | 1/2" to 72" | ASTM A216 Gr. WCB ASTM A217 Gr. WC1 ASTM A217 Gr. WC6 ASTM A217 Gr. WC9 ASTM A217 Gr. C5 ASTM A217 Gr. C12 ASTM A351 Gr. F8 ASTM A351 Gr. F3 ASTM A351 Gr. F8M ASTM A351 Gr. CF3M ASTM A351 Gr. CN7M ASTM A351 Gr. CF8C ASTM A351 Gr. CD4Mcu ASTM A351 Gr. CK3MCuN ASTM A352 Gr. LCA ASTM A352 Gr. LCB ASTM A352 Gr. LCC ASTM A494 Gr. CW6MC ASTM A494 Gr. CW2M ASTM A494 Gr. CW2M ASTM A494 Gr. CY40 ASTM A494 Gr. CU5MCuC ASTM A995 Gr. 1A ASTM A995 Gr. 4A ASTM A995 Gr. 5A ASTM A995 Gr. 6A NACE malt. Grade to NACE MR0175/NACE MR Â |
Gate | 300# | 2" to 48" | |
Gate | 600# | 2" to 42" | |
Gate | 800# | 1/2" to 2" | |
Gate - PRESSURE SEAL | 900# | 1/2" to 24" | |
Gate - PRESSURE SEAL | 1500# | 1/2" to 24" | |
Gate - PRESSURE SEAL | 2500# | 1/2" to 12" | |
Gate - CRYOGENIC | 150# | 2" to 36" | |
Gate - CRYOGENIC | 300# | 2" to 36" | |
Gate - CRYOGENIC | 600# | 2" to 24" | |
Note:
|
Standards
Design Standard |
API 600/BS1414 |
Testing Standard |
API 598/BS EN 12266-1 |
Face To Face |
ASME B 16.10 |
End Connection |
Flanged End - ASME B 16.5 |
Pressure – Temperature Chart |
ASME B 16.34 |
Valve Operation
Operator |
Size Range |
Handwheel |
2†– 10†- Class 150, 300, 600 |
2†– 4†- Class 900 & 1500 |
|
Gear Operator |
12†& Above - Class 150, 300, 600 |
6†& Above - Class 900,1500 |
Material
STRUCTURE |
End Connection |
Flanged End Raised Face, Butt Weld End, RTJ,. ETC |
Operation |
Hand wheel, Gear Operator, Electrical Actuator, Pneumatic, Hydraulic |
|
MATERIAL |
Shell |
WCB, WC1, WC6, WC9, LCB, LCC, LC3, C5, C12, CF8, CF8M, CF3, CF3M, CF8C, CN7M, CD4MCu, |
Trim |
13% Cr Steel, 304 , 304L, 316, 316L, 321, 347, F51, Monel |
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