Low-Temperature Dual-Disc LNG Check Valve for Cryogenic Media

• Media: Water,Gas,Oil etc
• Temperature: Ordinary Temperature
• Material: Cast Steel
• Model NO.: H76
• Connection Form: /
• Structure: Wafer
• Pressure: Ordinary Temperature
• Function: Backflow Prevention
• Sealing Form: /
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: DN50-DN1200
• Operation: Automatic
• MOQ: 1
• Customized: OEM
• Transport Package: Wooden Case
• Trademark: SWF VALVE
• Origin: China
• HS Code: 8481804090

Product Description

 

Product Description

Describtion:

The low-temperature dual-disc check valve is specifically designed for cryogenic media (such as LNG, liquid nitrogen, liquid oxygen, etc.). It features a dual-disc structure, which automatically prevents backflow under extreme low-temperature conditions (typically -196°C to +80°C). With a compact design and excellent sealing performance, this valve is widely used in LNG storage & transportation, air separation plants, chemical processing, and cryogenic engineering applications.
 

Application:

1.LNG terminals & tanker pipelines
2.Air separation units (ASUs)
3.Cryogenic storage tanks
4.Petrochemical & industrial gas systems

Features:
 

•  Dual-Disc Design - Ensures tight sealing and reduces water hammer effect.
   Cryogenic Material - Stainless steel (SS316, CF8M) or special alloys for ultra-low temperatures.
   Bidirectional Sealing - Prevents leakage in both flow directions.
   Low Torque Operation - Suitable for automated control systems.
   Standards Compliance - API 594, BS EN 593, or GB/T standards.

Product Parameters

Parameter

Size	DN50- DN1200,2"-48"
Pressure	Class150~Class2500
Media	LNG,LO2,LN2,etc.
Temperture	-196~200ºC

Detailed Photos