Adjustable Relief Valve 900-7500 psi 1/4" MNPT Aluminum · Low Temperature
The Aqua Environment model 1607 is an economical, small, high pressure relief valve having excellent set pressure control over a large pressure range of 900 to 7500 psi. Specially designed for low temperature service (–60°F | –51°C). It opens smoothly without the load popping sound of some relief valves. It stays bubble-tight to within a few psi of set pressure and reseats bubble-tight even after many vent cycles. Safety wire holes are provided for optional locking of set pressure adjustment.
This is a special order item and may take 1-2 weeks for delivery. Contact the Nuvair sales team for estimated lead times.
A Pressure Relief Valve (also known as a Safety Valve, Overpressure Relief Valve, or simply a Relief Valve) limits the amount of pressure in a compressed gas system. Without such a valve in place, pressure could build up beyond what the system is designed for and cause equipment failure. The Pressure Relief Valve opens at a designed “set pressure” to protect the system against failure from being overpressurized.
Specifications
| Type | Relief Valve |
|---|---|
| Special Features | Safety wire holes on device, but no safety wire included |
| Adjustment Range | 900-7500 psi¹ |
| Maximum Rated Pressure | 7500 psi |
| Inlet Port Size | 1/4" MNPT |
| Outlet Port Size | Side vent; not captured |
| Flow Capacity | 50 SCFM at 1500 psi 100 SCFM at 3000 psi |
| Outlet Pressure Rating | Atmosphere |
| Leakage | Bubble tight |
| Weight | 2.1 oz (60 g) |
| Overall Length | 2.2 to 2.5" depending on set pressure |
| Hex Diameter | 7/8" |
| Minimum Temperature | –60°F (–51°C) |
| Body Material | Anodized Aluminum |
| Internal Materials | Brass Stainless Spring |
| Seal Materials | Nitrile |
| Flow Coefficient (Cv) | 0.11" orifice diameter |
| Service/Repair Kit | 1607-L-12 |
Typical Applications
- Discharge and interstage reliefs on small high pressure compressors
- Reliefs on charging lines, regulators, and manifolds
- Hydraulic system and accumulator reliefs
- Many other safety relief valve applications
¹Although the 504 is rated for pressures up to 6000 psi, the manufacturer recommends the 1607 relief valve for customers wishing to use a set pressure above 5000 psi. The 504 and 1607 valves have the same form factor but a 1607 design modification allows for a higher set pressure without pushing the spring to its limits.
