The INVALCO Series 510 Valve can be used for maintaining back pressure on vent lines from separators, treaters, dehydrators, compressor stations, gas gathering systems, etc.
Specifications
| Body and Cover | Ductile A-395 |
| End Connections | 2″, 3″, 4″ and 6″ ANSI 150# RF Flanges |
| Diaphragm Case | Steel, 26 sq. in. or 65 sq. in.* |
| Diaphragm | Nylon reinforced Buna N |
| Temperature Limits | -20°F to 250°F** |
| Containment Pressure | 125 psi ** |
| Packing | Non-lubricated Buna-N |
| Stem | 303 Stainless Steel**** |
| Cages and Guides | 304 Stainless Steel |
| Seats | 2″, 3″, and 4″…304 Stainless Steel 6″…303 Stainless Steel**** |
| Valve Plugs | 2″, 3″, and 4″ Replaceable Buna**** 6″ Fluoroelastomer O-Ring |
| Seat-to-Body Seals | O-Ring |
| Spring Ranges | 0-125 psi (see chart on page 2) |
| Pressure Increase Required From Full Closed to Full Open | Spring Range …………………………. Increase 0-25 psi ………………………………………..……. 2.7 psi 20-40 psi …………………………………………… 4.0 psi 40-60 psi ………………………………………….. 9.0 psi 60-125 psi ………………………………….…….. 10.5 psi |