Pneu Hydro is is now part of the Proserv Group , a leading provider of production technology services to the global energy sector. You will experience no change to the service you see as part of this transition.For further information about Proserv and its portfolio of services, please visit www.proserv.com or email info@proserv.com
Miniature Relief Valves
Pneu-Hydro miniature relief valves provide zero leakage up to cracking pressure. They reseal bubble-tight within 5% to 10% of cracking pressure. Adjustments are insensitive to temperature variations.
These miniature relief valves are made from 316 stainless steel for strength and corrosion resistance. Material options can be provided on request. Buna-N or Viton O-rings are standard but other O-ring materials can be provided. Back-pressure on the 405 and 407 series (with connected vent line) should be limited to 1,000 psid.
Specifications
| Operating pressure ranges |
|
| 404 and 405 series |
50 to 5,000 psid |
| 406 and 407 series |
5,000 to 13,000 psid |
| Cv |
.035 |
| Operating temperature ranges |
|
| Buna-N seals |
-40° to 250°F (-40° to 121°C) |
| Viton seals |
-20° to 450°F (-29° to 232°C) |
Ordering Information
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