PROGEF PP-H Flanged Pneumatic Ball Valve 546 Pro FC d75-110

  Datasheet (PDF)

The Georg Fischer PROGEF Standard PP-H 546 Pro pneumatic flanged ball valve is engineered for automated flow isolation and process control in chemical distribution, industrial water treatment, and effluent systems. Manufactured from beta-PP-H (polypropylene homopolymer), the valve provides exceptional chemical resistance against inorganic salts, acids, and alkalis. Rated at a nominal working pressure of 10 bar (PN10) at 20 degrees C, it ensures reliable shut-off in compliance with ISO 9393-2 and EN 12266 leak rate A standards.

Technical specifications

The assembly combines a true union ball valve mechanism with a compact pneumatic actuator configured for fail-safe-to-close (FC) operation. Operating via internal stainless steel return springs at a nominal pilot air pressure of 5.6 bar, the unit automatically isolates fluid flow during compressed air interruption.

• Nominal working pressure: 10 bar (PN10) at 20 degrees C across all diameters d75 to d110.
• Actuation mode: Pneumatic fail-safe-to-close (FC) with spring return at 5.6 bar pilot pressure.
• Seat and seal options: Low-friction PTFE ball seats with resilient EPDM or FKM backing seals.
• Accessory interface: Integrated NAMUR interface per VDI/VDE 3845 with optical position indicator.
• Leakage integrity: Tight shut-off verified in accordance with ISO 9393-2 and EN 12266 leak rate A.

Materials and standards

Every wetted component is manufactured from stress-relieved beta-PP-H to guarantee superior chemical resistance and high impact strength across aggressive industrial media. The valve body and safety stem design isolate media from atmospheric exposure, while the actuator housing uses robust, flame-retardant glass-fibre reinforced polypropylene (PP-GF).

The stem incorporates an engineered predetermined shear break point positioned above the dual stem seals, preventing external leakage if excessive mechanical torque is applied. The low-friction PTFE ball seats are backed by elastomeric O-rings in EPDM or FKM conforming to EN 681, providing continuous sealing force without mechanical binding. Compliant with ISO 9393-2 and pressure-tested to EN 12266 leak rate A, the complete assembly provides a 25-year service life in water applications at 20 degrees C.

Installation and jointing

The valve assembly includes factory-fitted ISO PP-H backing flanges designed for fast, tension-free bolt-up integration into metric d75, d90, and d110 piping systems. Integrated stainless steel threaded inserts in the valve base allow direct and secure mounting to brackets or pipe supports without transferring mechanical stresses into thermoplastic piping.

Full backward compatibility of the z-dimension allows direct drop-in replacement of legacy Type 546 ball valves without modifying existing pipe runs or cutting flanges. The integrated VDI/VDE 3845 NAMUR top-works accept direct mounting of pilot solenoid valves, limit switch boxes, and position sensors without intermediate brackets. Supplied by BigWeld, an authorised Georg Fischer distributor, this flanged valve delivers dependable process automation across demanding industrial installations.