Product

Cryogenic Gate Valve

Cryogenic valves is designed in two different bonnet type. One is bolted bonnet, which the valve body and the bonnet are connected with a bolt nut, wound gasket (316 clamp flexible graphite manufacturing). Metal ring connections are also available upon special requirements. Another type is welded bonnet, which the valve body and the bonnet is threaded connected.

Specification

Size: DN15~800mm
Pressure : PN1.6~2.5Mpa
Main Material: LCB、LF1、 LF3、LC3、 CF8、 F304 ect.
Suitable Temperature: -45°C~ 196°C
Design: JB/T 7749-95
Face to face : GB/T 12221-1989
Test: JB/T 9092-1999

Main Parts Material:

Body/Bonnet

Stem

Seat

Gasket

Packing

Medium

LCB

1Cr7Ni12

 

STL/STL

1Cr13/Flexible

graphite

Low-temperature asbestos

PTFE

Flexible graphite

Propane/propene

Methanol/ethane

Gas/liquid ammonia

LC1

LC2

LC3

LC4

Features:

  1. The fluid resistance is small, and the sealing surface is less affected by the brushing and erosion of the medium.
  2. Easy to open and close.
  3. The flow direction of the medium is not limited, no disturbance and no pressure reduction.
  4. Simple shape, short structure length, good manufacturing process, wide range of application.
  5. It is easy to cause erosion and abrasion between the sealing surfaces, and maintenance is more difficult.
  6. The appearance size is large, and a certain space is required for opening. Take long time to open and close.
  7. The structure is more complicated.
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Email us: sales@hf-valves.com hf-valves@gracebaosteel.com
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+86 17791725286
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Address

Xian Hengfeng: Electromechanical Equipment Co.,Ltd
No.15,group 3,Sanlian Village,Dazhao Street Office,Chang’an District,Xi’an City, Shaanxi Province

Yiwu Hengfeng:
Zongtang 1st District, Jiangdong Street, Yiwu
City, Jinhua City, Zhejiang Province

Hk: Gracebao Steel Manufacturing Co.,Ltd
15/F, Lucky Center No.165-171,Wanchai Road, Wan Chai, Hongkong