BS 6364 Cast Steel Lcb Cryogenic Extended Bonnet Gate Valve

• Media: Water,Gas,Oil etc
• Temperature: Low Temperature
• Type: Straight-through
• Model NO.: Z41
• Material: Carbon Steel
• Connection Form: Flange
• Pressure: Ordinary Pressure
• Actuator: Manual
• Seal Surface: Wedge Gate Valve
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation, Flow Control
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: 1/2"-48"
• Operation: Handle, Gear
• MOQ: 1
• Customized: OEM
• Transport Package: Wooden Case
• Trademark: SWF VALVE
• Origin: China
• HS Code: 8481804090

Product Description

 

Product Description

Introduction:

The Cast Steel Cryogenic Gate Valve is engineered for low-temperature media (e.g., LNG, liquid nitrogen, liquid oxygen), featuring a cast steel body (ASTM A352 LCB/LCC) with cryogenic treatment to ensure reliability at -196ºC and below. Its full-bore gate design provides unrestricted flow for liquefied natural gas (LNG) storage, air separation plants, and cryogenic chemical processes.

Application:
LNG Systems: Storage tanks, terminals, tanker loading/unloading.
Air Separation: Liquid nitrogen/oxygen/argon pipelines.
Chemical Processes: Ethylene, propylene cryogenic control.
Aerospace Fuels: Liquid hydrogen/oxygen transfer.


Structual Features:

• Body Material: Cryogenic cast steel (ASTM A352 LCB/LCC) or stainless steel (CF8M), subzero-treated to prevent brittleness.

• Gate Type: Solid wedge (rigid) or flexible wedge for low-temperature sealing.

• Extended Bonnet: Isolates stem packing from cold fluid, allowing insulation installation.

• Sealing System:

  • Seat: Metal hard-faced (Stellite) or PTFE (above -100ºC).

  • Packing: Graphite rings or spiral-wound cryogenic packing.

Product Parameters

Parameter

Size	DN15 - DN1200 (1/2" - 48")
Pressure	PN10~PN420
Temperature	-196ºC to +200ºC
Media	LNG,Liquid Oxygen,Liquid Nitrogen etc.
Operation	Hand wheel,worm wheel,Pnumatic ,electric

Detailed Photos