Products Introduction

The valves which operated below -40℃ usually callcryogenic 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, liquidoxygen, liquid hydrogen, liquid nitrogen, liquid argon, carbon dioxide lowtemperature storage tank and tank truck, pressure swing adsorption oxygensystem.

Design Specification

Design&Manufacture： ASME B16.34；API 602；GB/T 12235；BS 1873；BS 6364；MESC SPE 77/200；MSS SP-134；JB/T 12624

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 themedia before deep process must be strict cryogenic treatment according to therequirement of the specifications, to ensure valve parts can fully undertemperature change and cause inflation ,contraction ,and the structure of seat partwill not have permanent deformation due to the temperature change

Using the long neck bonnet structure that canprotect the stuffing box

No matter how the temperature change it canmaintain the disc reliable seal, globe valve use cone disc

Back seal seat cobalt chromium tungsten carbidesurfacing welding structure, to avoid the stainless steel material Scuffingeach other

Cobalt chromium tungsten carbide overlayingwelding structure of the seat and gate sealing surfaces

The flow direction of medium is lower end ininlet and higher end in outlet higher( inflow from the disc lower end);Stem surface nitriding hardening process, toprevent valve in the process of opening and closing surface scratches affectthe sealing performance

Packing chooses fugitive emission packing onrequest, ensuring valve packing place leakage to meet environment requirements

Welded nipples is available on request;Insulation board (drop water board) is availableon request

Low leakage can be chosen upon request, detailtechnical requirements please refer to the low leakage sample.

Material

Note: Material can be chosen upon request.

Products Range

Nominal Diameter：1/2"~16"(DN15~400)

Pressure Range：ANSI/ASME150Lb~1500Lb(PN1.6~25.0Mpa)

Suitable Temperature：-29~-196 ℃

Operation：Manual ,Gear, Electric,Pneumatic

Products Range

Nominal Diameter：1/2"~36"(DN15~900)

Pressure Range：ANSI/ASME150Lb~1500Lb(PN16~250Mpa)

Suitable Temperature：-196~150 ℃

Operation：Manual ,Gear, Electric,Pneumatic