
Key Specifications / Features
The Low-temperature Safety Valve Factory produces a specialized safety valve designed for cryogenic applications. This valve features a stainless steel body made from ASTM A351 CF8 material, ensuring durability and resistance to extreme cold temperatures. It has a DN25 (1-inch) size with a PN16 pressure rating, equivalent to Class 150 LB, and comes with threaded ends for secure installation.
- Model No.: KV-20250718-SV-02
- Hits: 50
- Categories: Safety Valve
- Tags: Low-temperature Safety Valve, Stainless Steel Safety Valve, DN25 Safety Valve
Detail Information
Product Name: Cryogenic Safety Valve, Stainless Steel
Body Material: ASTM A351 CF8
Size: DN25, 1 Inch
Pressure: PN16, Class 150 LB
End Connection: Threaded
Medium: Steam, Air
Temperature Range: -196°C to 180°C
The DA21F Safety Valve is designed as an overpressure protection device for cryogenic medium systems. It operates within a working temperature range of -196°C to +80°C and is suitable for liquefied natural gases, industrial gases (such as oxygen, nitrogen, argon, and carbon dioxide), and other related industries.
Technical Specifications
» Product Model: DA21F
» Normal Size Range: 3/8-1Inch (DN10-DN25)
» Normal Pressure Rating: PN10-PN40
» Materials: ASTM A351 CF8, CF8M, CF3, CF3M
» Ends Connections: BSP Thread, NPT Thread
Structural Diagram
Main Parts and Materials
No | Name of Parts | Stainless steel | Stainless steel |
1 | Body | AA351 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 |







