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This industrial relief valve is a spring-referenced, factory-set valve with a 1/4" (6.4 mm) NPT male inlet, brass body, temperature range of 20 to 375°F (−6.7 to 190°C), and a pressure rating up to 500 psig. Its seat and poppet design allows high flow with minimal pressure buildup, while the compact in-line construction helps reduce space and piping requirements. Ideal for engineers and operators who need dependable overpressure protection and venting in process systems.
This industrial relief valve is a spring-referenced, factory-set valve with a 1/4" (6.4 mm) NPT male inlet, brass body, temperature range of 20 to 375°F (−6.7 to 190°C), and a pressure rating up to 500 psig. Its seat and poppet design allows high flow with minimal pressure buildup, while the compact in-line construction helps reduce space and piping requirements. Ideal for engineers and operators who need dependable overpressure protection and venting in process systems.
Relief pressure can be discharged to atmosphere or to a downstream connection. The IRV is supplied with FKM seals. For severe service applications and set pressures above 50 Psig (3.45 Bar), specify optional PTFE seals.
Features
Applications
| Set Pressure Range | 500 psig |
| Factory Set Tolerance | ±5% of specified pressure |
| Zero Leakage | To 95% of set pressure |
| Full Rated Flow | At 110% of set pressure, unaffected by up to 10% back pressure |
| Reseat | 90% of set pressure PTFE seals 80% of set pressure |
| Temperature Rating | 20 to 375°F (-6.7 to 190°C) Based on seal material |
| Set Pressure Range | 500 psig |
| Factory Set Tolerance | ±5% of specified pressure |
| Zero Leakage | To 95% of set pressure |
| Full Rated Flow | At 110% of set pressure, unaffected by up to 10% back pressure |
| Reseat | 90% of set pressure PTFE seals 80% of set pressure |
| Temperature Rating | 20 to 375°F (-6.7 to 190°C) Based on seal material |
