Low Temperature Gate Valve is a gate valve product specifically designed for low-temperature operating conditions. It uses special materials and structural design suitable for low-temperature environments, enabling normal operation at extremely low temperatures. The closing element of the valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The valve can only be fully opened or fully closed, and cannot be used for regulation and throttling. Low Temperature Gate Valves feature excellent low-temperature toughness, good sealing performance, and reliable opening/closing operation. They are suitable for pipeline systems with low-temperature media such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), ethylene, and propylene, and are widely used in industries such as petrochemical, air separation, and refrigeration.
| Item | Technical Standard |
|---|---|
| Design and Manufacturing | API 6D, BS 6364, GB/T 24925 |
| Inspection and Testing | API 598, GB/T 13927 |
| Flange Dimensions | ASME B16.5, GB/T 9113 |
| Pressure Rating | Class150 |
| Operating Temperature | -196℃ to +100℃ |
| Applicable Media | Liquefied Natural Gas, Liquefied Petroleum Gas, Ethylene, Propylene, etc. |
| Test Standard | BS 6364, GB/T 24925 |
| Connection Type | Flanged Connection, Butt-weld Connection |
| Model | Type | Features |
|---|---|---|
| Z41W | Low Temperature Stainless Steel Gate Valve | Stainless steel material with good low-temperature performance |
| Z41H | Low Temperature Cast Steel Gate Valve | Cast steel material, cost-effective |
| Z641H | Low Temperature Welding Gate Valve | Butt-weld connection with reliable sealing |
| Z941H | Low Temperature Electric Gate Valve | Electric drive with automated control |
| No. | Part Name | Material |
|---|---|---|
| 1 | Valve Body | A352 LCB, A352 LC1, A352 LC2 |
| 2 | Valve Cover | A352 LCB, A352 LC1, A352 LC2 |
| 3 | Gate | A352 LCB, A352 LC1, A352 LC2 |
| 4 | Valve Stem | A182 F304, A182 F316, A479 TP304 |
| 5 | Sealing Surface | Stellite Alloy, Tungsten Carbide |
| 6 | Packing | Flexible Graphite, Low Temperature Graphite |
| 7 | Bolts | A320 L7, A320 L15 |
| 8 | Nuts | A194 4 |
No drawing available.