Low temperature cut-off valve

source：Xiamen, rhett fluid control co., LTD The information has been viewed： 4251 Time：2013-07-03 11:15:51


Suitable for liquefied natural gas, methane, carbon dioxide, ethylene, ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen and low temperature medium.
Product features:
■ according to top valve operating temperature to determine the length of stem packing seal, ensure reliable
■ upstream open drain hole to prevent abnormal pressure in cavity
According to the working temperature of a reasonable selection of packing, gaskets and other parts of the material
Mechanical properties of materials, strict control of chemical composition and low temperature impact toughness
Technical parameters:
■ nominal size: DN50 ~ DN300
■ nominal pressure: PN1.6 ~ PN4.0MPa
■ design standards: JB/T 7749
■. Length: GB/T 12221
■ applicable temperature: -46 ~ -196 ℃
■ flange end: customer requirements.
■ test and inspection: ZB J16006
The material of main parts:
Body: LCB, LC1, LC2, LC3, LC4, CF8
Disc / seat: hard alloy steel (STL6 STL8) or stainless steel or alloy steel
Stem: 1Cr7Ni12 1Cr18Ni9Ti
Packing: PTFE dipping PTFE asbestos rope flexible graphite