Cryogenic valve - Dongchen Intelligent Technology Co., Ltd

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Cryogenic valve Introduction

Suitable for precise adjustment and cutting of ultra-low temperature media, with operating temperatures as low as -196 ℃, suitable for low-temperature devices such as ethylene, liquefied natural gas, air separation, and pressure swing adsorption oxygen production. Each low-temperature valve produced by Dongchen Intelligent undergoes oil free degreasing treatment during installation, and each component undergoes low-temperature treatment before precision machining to prevent cracking during actual use. Pressure and leakage tests are conducted in liquid nitrogen under simulated cryogenic conditions before leaving the factory, with helium gas as the airtight testing medium.

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Details

Suitable for precise adjustment and cutting of ultra-low nitrogen media, the operating temperature can be as low as -196 ℃, suitable for low-temperature devices such as ethylene, natural gas, air separation, and pressure swing adsorption oxygen production. Each low-temperature valve produced by Dongchen Intelligent undergoes oil free degreasing treatment during installation, and each component undergoes low-temperature treatment before precision machining to prevent cracking during actual use. Pressure and leakage tests are conducted in liquid nitrogen under simulated cryogenic conditions before leaving the factory, with helium gas as the airtight testing medium.

◆Technical data

Nominal Diameter	NPS 1/2-NPS 24”(DN15-DN600）
nominal pressure	ANSI150-ANSI1500
Mixed material	A351 CEB/CFBM/CF3/CF3M
Internal material	316SS/316LSS(STL overlay welding is optional)
Leakage level	ANSI B16.104 IV/V
operation temperature	-196℃~+200℃
Connection method	Flange connection, butt welding connection
Top cover form	Cryogenic type
Packing material	Pure PTFE, GLE type low leakage P
The medium of the body	Liquid nitrogen, liquid oxygen, liquid argon, etc