Product specification
Cryogenic Gate, Globe & Check Valves
Extended-bonnet cryogenic valves proven to -196 °C for LNG, hydrogen, nitrogen and oxygen service.
Overview
Cryogenic capability is one of the few areas where Indian valve manufacturing thins out quickly. Panchvati builds cryogenic gate, globe and check valves across our full size range, with extended bonnets, vapour-space gland design and cold-box testing.
Design features
- Extended bonnet sized to keep the gland above the frost line
- Vapour-space design that prevents ice formation on the packing
- Cavity pressure relief in the seat or ball arrangement
- Austenitic trim with low-temperature impact-tested body material
- Degreased and oxygen-cleaned assembly for O2 service
- Cryogenic test certificates issued with every batch
Size & pressure class range
| Size range | Pressure class |
|---|---|
| 1/2" – 1" | Class 800 / 900 / 1500 (forged) |
| 2" – 14" | Class 150 |
| 2" – 12" | Class 300 |
| 2" – 8" | Class 600 |
Sizes and classes outside this table are reviewed on enquiry against available patterns and forging stock.
Design standards
- BS 6364
- API 598
- ASME B16.34
- EN 12567 (on request)
- MSS SP-134
Body & trim materials
- Low-temperature carbon steel: LCB, LCC, LF2, LF3
- Stainless steel: CF8, CF8M, CF3, CF3M, F304L, F316L
- Bronze and special alloys on enquiry
End connections
- Raised-face flanged
- Butt-welded
- Socket-welded
- Extended-neck welded
Testing
- Liquid nitrogen cryogenic test to BS 6364
- Helium leak detection
- Hydrostatic shell test
- Impact testing of body materials
Temperature range
-196 °C to +80 °C
Typical applications
Where this valve family usually lands.
LNG Terminals
Air Separation
Hydrogen Projects
Cryogenic Storage
Also manufactured
Related valve families.
Next step
Need cryogenic valves against a specific datasheet?
Share the size, class, metallurgy, end connection and test requirement. We will confirm feasibility and lead time.