Cryogenic Safety Valve, A351 CF8, DN20, PN16, Threaded Ends

Product Name: Cryogenic Safety Valve
Body Material: ASTM A351 CF8
Seat Material: PTFE
Size: DN20, 3/4 Inch
Pressure: PN16, Class 150 LB
End Connection: DA21F Thread
Medium: LNG, Industrial Gases
Temperature Range: -196°C to 80°C

The DA21F Safety Valve is designed as an overpressure protection device for cryogenic systems, operating within a temperature range of -196°C to +80°C. It is suitable for use in liquefied natural gas (LNG) applications, as well as in systems handling industrial gases such as oxygen, nitrogen, argon, and carbon dioxide, along with other related industries.

Technical Specifications

» Product Model: DA21F
» Size Range: 3/8-1 Inch (DN10-DN25)
» Pressure Rating: PN10-PN40, Class 125-300 LB
» Materials: ASTM A351 CF8, CF8M, CF3, CF3M
» End Connections: BSP Thread, NPT Thread

Structural Diagram
Cryogenic Safety Valve Structural Diagram

Main Parts and Materials

No

Name of Parts

Stainless steel

Stainless steel

1

Body

A351 CF8

A351 CF8M

2

Disc

SS 304+PCTFE

SS 316+PCTFE

3

Spring washer

SS 304

SS 316

4

Spring

12Cr18Ni9

12Cr18Ni9

5

Cap

SS 304

SS 316

6

Locking nut

SS 304

SS 316


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Zhejiang Kosen Valve Co., Ltd.

Zhejiang Kosen Valve Co., Ltd.


Supplier Website

Source: https://www.kosenvalve.com/cryogenic-safety-valve-a351-cf8-dn20-pn16-threaded-ends.html