Cryogenic gate Valve
- Description
- Inquiry
Cryogenic gate Valve
A cryogenic gate valve is made to specifically withstand temperatures below freezing point in industrial applications. It is generally made from stainless steel and bronze. It also comes with an extended bonnet for protection against extreme temperatures.
Products Introduction
The valves which operated below -40℃ usually call cryogenic valves. It mainly used in ethylene, liquefied natural gas plants,natural gas LPG, LNG storage tanks, receiving bases and satellite stations,empty Sub-equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid hydrogen, liquid nitrogen, liquid argon, carbon dioxide low temperature storage tank and tank truck, pressure swing adsorption oxygen system.
Design specification
Design& Manufacture: API 600;API 602; BS 6364;ASME B16.34;MESC SPE 77/200;MSS SP-134; JB/T 12626
End to End: ASMEB16.10;GB/T 12221
Connection: ASME B16.5;ASME B16.25;HG;GB;JB;JIS;EN;DIN
Inspection & Test : API 598/BS 6364;MESC SPE 77/200;MSS SP-134;JB/T 12622
Product Features
Valve components parts that contacted with the media before deep process must be strict cryogenic treatment according to the requirements of the specifications, to ensure valve parts can fully under temperature change and cause inflation, contraction ,and the structure of seat part will not have permanent deformation due to the temperature change
Using long neck bonnet structure that can protect the stuffing box
No matter how the temperature change it can maintain the disc reliable seal, expanding and flexible wedge available
Back seal seat cobalt chromium tungsten carbide surfacing welding structure, to avoid the stainless steel material scuffing each other
Cobalt chromium tungsten carbide over laying welding structure of the seat and gate sealing surfaces
Pressure relief hole structure design to prevent valve cavity abnormal pressure change, pressure relief hole can be positioned to seat or gate considering of valve structure , and connected with valve inlet end
Stem surface nit riding hardening process, top revent valve in the process of opening and closing surface scratches affect the sealing performance
Packing chooses fugitive emission packing on request, ensuring valve packing place leakage to meet environment requirements
Welded nipples is available on request
Insulation board (drop water board)is available on request
Main components parts combination
Body | Plate | seat | Stem |
A182 F304/F304L A351 CF3 A350 LF2;A352 LCB A350 LF3;A352 LCC A182 F316/F316L A351 CF3M | A182 F316/F304+HF | A182 F316/F304+HF | A182 F304 A182 F316 17-4PH UNS 20910 |
Note: Material isavailable upon request
Product Range
Nominal Diameter:1/2″ ~48″(DN15~1200)
Pressure Range:ANSI/ASME150Lb~1500Lb(PN16~250Mpa)
Suitable Temperature:-196~150 ℃
Operation :Manual, Gear Box, Electric, Pneumatic