Autoclave 5PRVS8072 Relief Valve

Autoclave 5PRVS8072 Relief Valve

Medium Pressure, High Pressure and NPT Inlet Options to 75,000 psig

Principle of Operation:

Parker Autoclave Engineers relief valves open proportionally to increasing pressure. Therefore, they are not recommended for applications requiring immediate full valve flow at set pressure and should not be considered a “Safety Valve”. Full flow of relief valve is defined as 110% of set pressure.

RVS Soft Seat Relief Valve:

Series RVS relief valves utilize a PEEK soft seat design for reliable venting of gases at set pressures from 1,500 psi to 20,000 psi (1380 bar). The operating temperature range is -50° to 400°F.

The soft seat design provides bubble tight sealing, repeatable pop-off, and reseat. Additionally, soft seat valves provide a higher cycle life than metal seat relief valves.

These precision valves are designed for gases and liquid systems where zero leakage is critical. They are not recommended for liquefied gases which produce gas at cryogenic temperatures below -50°F upon relief.

Features and Benefits:

• Material: standard models are constructed of UNS S31600, 316 cold worked stainless steel with selected components made of anti-galling stainless steel material for optimum economy and ruggedness.
• Full Lift for Full Flow: these relief valves open as a function of increasing system pressure. Proper spring selection assures repeatability of opening, full lift and flow, and reseat pressures.
• Reliability and Long Service Life: materials engineering and stringent quality control procedures combine to assure the highest quality, reliability and service life. Each valve is preset and factory sealed to ensure proper valve operation. Note: mount as far from pump outlet as possible to avoid premature relief and extend valve life.
• Setpoint Accuracy: Setpoint Accuracy is ±3%.
• Re-Seat Pressure: 85% of set pressure
• Dependable Shut-Off: series PRVS relief valves provide bubble tight shut off of gases and liquids.
• Fewer Parts, Ease of Maintenance: engineered to perform with fewer basic components, PRVS valves facilitate minimum stocking of spare parts and ease of maintenance.

All models are designed primarily for thermal expansion or low volume relief applications at high pressures where flow is not critical.
Note: these flow curves are based on capacities of valves only and do not take tubing into account.

Autoclave 5PRVS8072 Relief Valve Technical Data:

• Description: NPT Soft Seat Relief Valve, 1500-5000 psi set pressure range
• Inlet Connection: 1/2″ FNPT
• Outlet Connection: 3/4″ FNPT
• Orifice Diameter: 0.312″
• Minimum Set Pressure: 1500 psig
• Maximum Set Pressure: 5000 psig
• Maximum Back Pressure: 500 psig
• Dimension “A” (overall height): 10.47″
• Repair Kit: R5PRVS

Relief Valve Options (add the following suffixes to the valve part number):

• “HYG“: Modified for use with Hydrogen / Helium (seat surface and Helium seat tested; no material changes)
• “SOG“: NACE MR0175 material with hardness verification / certificate

Notes:

• Parker Autoclave Engineers relief valves are complemented by a complete line of high pressure fittings and tubing.
• Traceability is ensured by use of heat and purchase order codes etched on relief valve body that also include model number, MAWP rating, and material type references.
• All relief valves include connection collar and gland nut unless requested otherwise.
• Maximum pressure rating based on the lowest rating of any component. Actual working pressure may be determined by tubing pressure rating, if lower.

Caution:

1. Parker Autoclave relief valves are preset and factory sealed. Warranty is voided if seal is broken by customer.
2. Maximum system operating pressure should not exceed 90% of relief valve set pressure. Operating pressures in excess may cause weepage resulting in damage to the plug and seat.
3. Relief Valves are not to be used as pressure regulators, RVP has limited actuation life dependent on pressure.

Please contact our Sales Department for assistance in selecting the right products for your application.

 Product Catalog: Parker Autoclave Relief Valves