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HPRV Series High Pressure Relief Valve
Brand: Generant Inc
The HPRV Series Relief Valve provides accurate crack pressure with zero leakage up to 98% of nominal set pressure.
When properly specified, this factory preset, tamper proof design, is ideally suited for most any liquid or gas application. Encapsulating the O-ring seal within the poppet eliminates seal extrusion and cold flow characteristics.
By guiding the poppet into the body, a line of contact seal is ensured and at high crack pressure settings, the O-ring is protected by a metal-to-metal stop between the poppet and the body.
High flow design, combined with narrow band interchangeable springs, minimizes system pressure rise as flow demand increases. Available in brass or stainless steel and inline or discharge to atmosphere. Valves can be supplied with a manual pull ring override.
Features- 100% factory preset and tested
- Zero leakage to 95-98% of set pressure
- Tamper proof adjustment
- Excellent reseal performance
Specifications
Brand
Burst Pressure
- psig: > 5,000 (kPa: 34,500, Abr: 345) - HPRV Series
Cap Material
- Outlet Cap: 303 Stainless Steel, ASTM A582 (Lubricated with Krytox)
- Outlet Cap: 316 Stainless Steel - ASTM A479 (Lubricated with Krytox)
- Outlet Cap: Brass, ASTM B16
Enclosure, Body Material
- 303 Stainless Steel
- 316 Stainless Steel
- Brass
Materials of Construction
- Spring Chamber, Spring Retainer (Lubricated with Krytox), Poppet, Pull Stud: 303 Stainless Steel, ASTM A582
- Spring Chamber, Spring Retainer (Lubricated with Krytox), Poppet, Pull Stud: 316 Stainless Steel - ASTM A479
- Spring Chamber, Spring Retainer, Pull Stud: Brass, ASTM B16
NPT Connection
- 1/2” NPT Female
- 1/2” NPT Male
- 1/4” NPT Female
- 1/4” NPT Male
- 1/8” NPT Female
- 1/8” NPT Male
- 3/4” NPT Female
- 3/4” NPT Male
- 3/8” NPT Female
- 3/8” NPT Male
O-Ring Material
- O-Ring Spreader: 303 Stainless Steel, ASTM A582 (Lubricated with Krytox)
- O-Ring Spreader: 316 Stainless Steel - ASTM A479 (Lubricated with Krytox)
- O-Ring Spreader: Brass, ASTM B16
Pressure Range
- psig: 10 to 2,400 (kPa: 70 to 16,600, bar: 0.7 to 166)
Proof Pressure
- psig: 3,700 (kPa: 22,500, bar: 225) - HPRV Series
Ring Material
- Pull Ring: -Plated Steel
Screw Material
- Locking Screw: 300 Series Stainless Steel (18-8)
Seat / Seal Material
- Seal: Buna-N (Lubricated with Krytox)
- Seal: Ethylenepropylene (Lubricated with Krytox)
- Seal: Neoprene (Lubricated with Krytox)
- Seal: Silicone (Lubricated with Krytox)
- Seal: Teflon (Lubricated with Krytox)
- Seal: Viton (Lubricated with Krytox)
Spring Material
- 302 Stainless Steel - ASTM A313
- 631 Stainless Steel (17-7 PH), ASTM A313
Temperature Range
- -220° to 205° C (-320° to 400° F)
Tolerance
- Set Pressure: ± 5 % on Increasing Pressure
