The Parker PR-08 Series is a 1/2 inch PTFE fluoropolymer pressure regulator that is designed for use in ultra-high purity (UHP), DI water, aggressive chemical, and slurry distribution systems, including those used in semiconductor manufacturing and clean-area applications. It’s non-relieving design requires a 5 psi differential across the valve, which leads to low hysteresis, better droop characteristics, and steady-state pressure control in fluid handling systems up to 120 psig.

The PR-08 utilizes a machined PTFE body with a precision-machined seat and diaphragm sealing area for superior leak integrity and chemical resistance. The large diaphragm allows for greater sensitivity to changes upstream, preventing the effects of pressure surges being transferred downstream. Its stainless steel spring reduces the effects of corrosive environments and ensures compatibility with a wide range of aggressive process media.

For increased flexibility, the PR-08 Series can be fitted with a variety of port configurations, including 1/4 inch and 3/8 inch Parbond and Parflare tube fittings. The fittings reduce assembly time and installation costs, while ensuring a leak-tight seal for reliability in applications where cleanliness is critical.

The tongue and groove seal of the PR-08 Series pressure regulator ensures a positive diaphragm to body seal, which isolates process media from the atmosphere and provides added protection for the spring and adjusting screw. The regulator comes equipped with a positional mounting ring and flow direction arrow for ease of installation and time savings.

For a back pressure regulator, refer to the BR-08 Series.

Markets:
• Semiconductor
• Analytical Laboratory
• Pharmaceutical
• BioPharm
• Aerospace
• Industrial

Features/Benefits:
• Non-relieving design requires a 5 psi differential across the valve results in low hysteresis and better droop characteristics
• Modified PTFE diaphragm and stainless steel spring provide high cycle life and exceptional resistance to corrosion
• Large diaphragm allows for greater sensitivity to changes upstream
• Can be fitted with a variety of port configurations, including Parflare and Parbond tube fittings
• Maximum primary pressure: 120 psig
• Maximum secondary pressure: 60 psig
• Ambient temperature range: 0°F to +150° F (-17°C to +66° C)
• Fluid temperature range: 0°F to +266° F (-17°C to +130° C)

Applications:
• Corrosive and/or specialty chemicals, acids, bases, and slurries
• Semiconductor Tools
• Tool Hook-ups
• CMP/Slurry Systems