Back-pressure regulator for high purity applications
1/2" - 1", 120 psig | PR-3 series Partek Division

The PR-3 Pressure Regulators are designed for use in high purity semiconductor applications, and are also ideally suited for ultra-pure water and aggressive chemicals. The design utilizes a machined PTFE body with precision machined seat and diaphragm sealing area. The large diaphragm allows for quicker reaction time to changes upstream, preventing the effects of pressure surges to be transferred downstream.

FEATURES:

One piece precision machined diaphragm manufactured from the latest technology modified PTFE provides a high cycle life and lower replacement costs
Provides over five times the flexural life as compared to conventional PTFE. Benefit is less downtime
Non-relieving design requires a 10 psi differential across the valve. This stabilizes system pressure, which is ideal for use in DI water systems and provides low hysteresis
Tongue and groove diaphragm seal provides protection for springs and adjusting screw

SPECIFICATIONS:

Materials of Construction:

Wetted Surfaces - PTFE, Modified PTFE
Non Wetted Surfaces - Anodized Aluminum, ABS, Brass, SS, PVDF, SS Spring, Chrome Vanadium Die Spring, HDPE

Pressure Ranges:

Max Primary Pressure - 120 PSIG (8.3 bar)
Secondary Pressure Options - 0 to 30 PSIG and 0 to 60 PSIG
Pressure ranges above are for operation at ambient temperature

Temperature Ranges:

0° - 150° F (-17° - 66° C) Ambient
0° - 266° F (-17° - 130° C) Fluid