PP-H Pressure Reducing Valve PROGEF 582 d20-63 SDR11

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Georg Fischer PROGEF Standard Type 582 pressure reducing valves deliver accurate downstream pressure control and stabilization within industrial polypropylene piping systems. Engineered specifically for demanding media distribution, these compact regulating valves handle operating pressures up to 10 bar (PN10) across nominal pipe sizes d20 to d63 (DN15 to DN50). By using a balanced differential pressure mechanism actuated by a pre-tensioned spring and a chemical-resistant PTFE/EPDM diaphragm, Type 582 maintains a uniform preset outlet pressure between 0.5 and 9.0 bar, fully dampening upstream pressure surges and system oscillations.

Manufactured entirely from premium beta polypropylene homopolymer (beta-PP-H), the valve body delivers high mechanical rigidity, chemical resistance, and thermal performance across industrial process installations, water treatment, chemical dosing, and effluent handling. The valve features double union ends equipped with SDR11 butt fusion spigots, enabling seamless integration into metric PP-H pipelines using standard butt fusion or infrared (IR) welding procedures. A metal-free central union nut prevents external atmospheric corrosion in aggressive environments, while top-grade EPDM or FKM elastomer seals provide hermetic internal and external sealing.

Installation and routine maintenance are streamlined through true union connections that allow swift axial removal of the valve body without disassembling adjacent piping sections. Integrated stainless steel threaded inserts on the bottom housing ensure rigid anchor points for brackets, pipe support clips, or structural skids. Dual-sided measurement ports accommodate direct manometer gauge installation or gauge guards to facilitate continuous pressure monitoring. Designed for a 25-year operational service life under nominal conditions at 20 degrees Celsius, this PROGEF 582 valve guarantees precise, maintenance-free hydraulic pressure regulation.