Cryogenic Swing Check Valve

The cryogenic swing check valve is a high-quality product manufactured by Waits Valve, and we can provide you with a competitive price, high cost performance. This product has been well used in Saudi Arabia, the United Arab Emirates, Kuwait, and the northern region. We hope to establish long-term cooperative relations with more customers and create a win-win future.

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Product Description

The cryogenic swing check valve is used in the management system of cryogenic liquid storage and transportation equipment to prevent the backflow of cryogenic media. It has the characteristics of flexible switching and reliable sealing.
When the medium flows in the specified direction, the valve disc is opened by the force of the medium; when the medium flows back, due to the self-weight of the valve disc and the reaction force of the medium, the valve disc and the valve seat sealing surface are tightly closed, thereby achieving the purpose of preventing the backflow of the medium.
Applicable media: methane, liquefied natural gas, hexene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen and other cryogenic media.

Implementation Standards

Design standards	BS1868, API602, ASME16.34
Flange standards	ASME B16.10, ASME B16.25, ASME B16.5
Connection methods	RF, RTJ, BW
Testing and acceptance	API598, API6D,
Structural length	ASME B16.10,
Pressure and temperature ratings	ASME B16.34、
Fireproof test	API607, API6FA
Low leakage standards	ISO 15848-1, API 622
Anti-corrosion design	NACE MR 0103, NACE MR 0175

Application

Size	NPS 2″ ~ NPS 24″ DN50~ DN600
Pressure range	CL150~ CL500 PN10~ PN250
Temperature range	；-196°C ~ +150°C
Application range	Mainly used in ethylene, liquefied natural gas equipment, natural gas LPG, LNG storage tanks, receiving bases and satellite stations, air separation equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid hydrogen, liquid nitrogen, liquid argon,
Drive mode
Valve body/valve cover	A182 F304/F304L/F316/F316L/CF3/CF3M/LF2/LCB/LF3/LCC
Valve plate/valve seat	F316/F304+HF
Valve stem	F6A F304 F316 F51 F53 Monel K500
Valve stem nut	Copper Alloy
Packing	Flexible graphite, graphite asbestos packing, polytetrafluoroethylene...

Performance Features

1. Small fluid resistance.
2. Cryogenic swing check valve can be installed horizontally or vertically.
3. Low temperature liquid nitrogen pretreatment of parts.
4. The valve cover adopts bolt valve cover, welding valve cover, and pressure self-tightening valve cover.

Cryogenic Swing Check Valve