PP-H pneumatic ball valve type 546 Pro PPA FC

  Datasheet (PDF)

The Georg Fischer PROGEF Standard Type 546 Pro pneumatic ball valve is an automated industrial isolation valve engineered for chemical processing, water treatment, and corrosive fluid transport. Actuated by a PPA fail-safe-to-close pneumatic drive, this high-integrity unit combines beta polypropylene homopolymer (PP-H) construction with metric serrated fixed flanges. It provides dependable automated shut-off up to 10 bar for aggressive industrial media.

Technical specifications

The automated assembly pairs a Type 546 Pro valve body with a single-acting pneumatic actuator calibrated for fail-safe-to-close operation upon loss of pilot air. Operating at a standard 5.6 bar control air pressure, the actuator delivers precise quarter-turn cycling while safeguarding piping integrity.

• Actuation mode: Single-acting pneumatic fail-safe-to-close (FC) mechanism.
• Control air interface: VDI/VDE 3845 NAMUR standard operating at 5.6 bar pilot pressure.
• Nominal pressure rating: PN10 (10 bar maximum working pressure).
• Position feedback: Integrated optical position indicator with NAMUR accessory mounting.
• Stem safety feature: Engineered safety stem incorporating a predefined shear point.
• Tightness verification: Bubble-tight bi-directional isolation conforming to leak rate A under EN 12266 and ISO 9393-2.

Materials and standards

All wetted thermoplastic components are precision injection-moulded from beta polypropylene homopolymer (PP-H) to maintain superior chemical resistance and high mechanical stiffness. The valve assembly conforms fully to international industrial standards, ensuring long-term hydrostatic endurance over an operational life of 25 years with water at 20 degrees C.

The PPA actuator housing is manufactured from corrosion-resistant, glass-fibre reinforced polypropylene (PP-GF), providing durable protection in aggressive ambient atmospheres. Internally, low-friction self-adjusting PTFE seats are backed by high-performance elastomeric seals in either EPDM or FKM. The entire assembly meets ISO 9393-2 and EN 12266 testing requirements, preventing leaks across chemical dosing and industrial effluent systems.

Installation and jointing

This actuated ball valve features integrated metric serrated fixed flanges designed for direct bolt-up connection into flanged industrial piping systems. The serrated flange faces ensure stable compression of flat gaskets, preventing joint displacement and media leakage under continuous pressure.

The base of the valve body incorporates threaded stainless steel inserts, enabling secure mounting to pipe support brackets or structural skids. This anchoring mechanism absorbs actuator torque and system vibration directly, isolating the thermoplastic PP-H piping from bending or mechanical stresses during automated cycling.