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Gate Valves

Low Temperature Gate Valve

  • Excellent Low Temperature Performance: Uses low-temperature steel materials to ensure toughness at low temperatures
  • Cold Brittleness Prevention Design: Special design to prevent cold brittleness of materials at low temperatures
  • Good Sealing Performance: Maintains good sealing performance even at low temperatures
  • Reliable Structure: Specially designed low-temperature structure to ensure reliable operation
  • Long Service Life: Maintains long service life even under low-temperature conditions
  • Wide Application Range: Suitable for multiple low-temperature media
Download Spec

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.

Technical Standards

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 Class150Class900, PN2.0PN42.0
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

Basic Models

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

Main Components Material Table

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.