PRODUCTS >> Pneumatic Group Products >> Process Valves >> High Purity Valves >> Parker PFA/PTFE 1/4", 3/8" Relief Valves

Parker PFA/PTFE 1/4", 3/8" Relief Valves

The RV Relief Valve is designed for use in high purity semiconductor applications, and is also ideally suited for ultra-pure water and aggressive chemicals.
The design utilizes a molded PFA body with precision-machined PTFE seats and diaphragm poppet. When a field set relief pressure is reached, the valve opens and permits flow. The valve resets when 25% of original setpoint is reached.

One piece precision machined diaphragm poppet manufactured from the latest technology modified PTFE.

Provides over five times the flexural life as compared to conventional PTFE.

Tongue and groove seat and diaphragm poppet for positive through flow shut off and diaphragm to body seal.

Field adjustable relief pressure.


High cycle life.

Lower replacement costs.

Less downtime.

Isolates media from adjusting screw.

Prevent over pressurization in critical applications.


Materials of Construction

Wetted: PFA, Modified PTFE

Non-wetted: PVDF, SS, Brass, ABS, HDPE

Pressure Ranges

15 PSIG (1.03 bar) - 120 PSIG (8.3 bar)

Pressure ranges for operation at ambient temperatures. For use at higher temperatures consult Pressure/Temperature chart on page 3.

Temperature Ranges

Ambient: 0° - 150° F (-17° - 66° C)

Fluid: 0° - 266° F (-17° - 130° C)





1069 Serpentine Lane

Pleasanton, CA 94566

Phone (877) 600-8585

Fax       (925) 426-9539


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