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Cast Steel Cryogenic Check Valve
Cryogenic Check Valve is used in the management system of cryogenic liquid storage and transportation equipment to prevent the backflow of cryogenic medium.
- category :Cast Steel Cryogenic Valves
- Email :teji@teji-valve.com
- Phone :+86-577-67354000
- fax :+86-577-67354001
Cryogenic Check Valve is used in the management system of cryogenic liquid storage and transportation equipment to prevent the backflow of cryogenic medium. When the medium flows in the specified direction, the valve flap is opened by the force of the medium; when the medium flows backward, the valve flap is tightly closed with the sealing surface of the valve seat due to the weight of the valve flap and the opposing force of the medium. Closed to achieve the purpose of preventing the backflow of the medium. It has the characteristics of flexible switch and reliable sealing.
Applicable Medium: Cryogenic temperature medium like Methane/Liquid natural gas/Hexene/Carbon dioxide/Liquid ammonia/Liquid oxygen/Liquid nitrogen/Liquid hydrogen and so on.
SPECIFICATIONS：
1. Valve Size : 2 ~ 36”
2. Applicable Rating : ASME 150# ~ 600#
3. Temperature : Down to -196 ℃
4. Code & Standard : BS, ASME, ASTM
Designed by BS6364, ASME B16.34, and ASME B16.25/16.5
5. Shell & Seat Leak Test : API 598 & BS6364
6. Constructions：
End Connection : Flanged, Butt-Welded or RTJ Type
Full Bore /Reduce Bore
FEATURE:
1.Low fluid resistance.
2.Can be installed horizontally and vertically.
3.Cryogenic temperature liquid nitrogen pretreatment of parts.
4.Bolted bonnet, welded bonnet, pressure self-tightening bonnet.
MATERIALS FOR MAIN PARTS:
|
PARTS NAME |
MATERIAL |
|
BODY |
Cast Steel - ASTM A351-CF8(M)/CF3(M) |
|
BONNET |
Cast Steel - ASTM A351-CF8(M)/CF3(M) |
|
SEAT |
SOFT: PCTFE METAL: ASTM A276-304(L) / 316(L)-(H.F) |
|
DISK |
ASTM A351-CF8(M) / CF3(M), A276-304(L) / 316(L)-(H.F) |
|
GASKET |
SPIRAL WOUND GRAPHITE |
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