The Plast-O-Matic Series PRH pressure regulator is a thermoplastic, normally-open, downstream pressure-reducing valve designed for corrosive and ultra-pure liquids with inlet pressures up to 150 PSI at 75°F. It maintains downstream pressure between 10 and 125 PSI using a large-surface rolling diaphragm and pressure-balanced shaft for high sensitivity and long-cycle reliability. Body materials include PVC, CPVC, polypropylene, PTFE, and PVDF, with standard female NPT connections and optional JIS, DIN, socket, flanged, or spigot fittings. Flow capacities range from 5 to 200 GPM depending on size, with sizes offered from 1/4" to 3" in various materials. Non-rising stem construction is standard on 3/4", 1", 1-1/2", and 2" bodies. Dual U-cup seals prevent leakage and creep. The regulator prevents downstream pressure from exceeding the set point but does not maintain an exact pressure.
Series PR/PRH/PRHM Downstream pressure reducing valve features large area rolling diaphragm, ultra-smooth operation and isolated spring control. Molded and machined valves in 1/4″ through 4″ and metric pipe sizes in popular thermoplastic materials with a wide range of connection types. Proven design provides highest flow with minimal pressure droop. While some valves may be limited by size or material, most models provide set range of 10-125 PSI.
| Plast-O-Matic Valves, Inc. | |
|---|---|
| Product Category | Industrial Valves |
| Product Number | PRH |
| Product Name | Plastic Pressure Regulators |
| Primary Material | PVC; CPVC (optional feature); PTFE (optional feature); PP (optional feature); PVDF (optional feature) |
| Media | Water; Corrosive, Ultra-Pure Liquids |
| Valve Size | 0.25 to 3.00 inch (6.35 to 76.20 mm) |
