PVC-C Ball valve type 546 Pro, threaded sockets 3/8"–4", PN10

  Datasheet (PDF)

The Georg Fischer Type 546 Pro PVC-C ball valve is an engineered thermoplastic isolation and control valve developed specifically for demanding industrial chemical processing and high-temperature utility systems. Constructed from unplasticized chlorinated polyvinyl chloride (PVC-C in Agate Grey RAL 7038), this valve delivers superior resistance to aggressive acids, alkalis, and salts at continuous operating temperatures up to 80 degrees Celsius. Featuring threaded female sockets ranging from 3/8 inch to 4 inches, the assembly is rated for an operating pressure of up to 10 bar (PN10) at ambient conditions, providing reliable flow regulation across chemical distribution, water treatment plants, electroplating, and microelectronics manufacturing facilities.

Engineered with a low-friction polytetrafluoroethylene (PTFE) ball seat and backed by premium elastomeric seals in either EPDM or FKM, the Type 546 Pro guarantees bidirectional bubble-tight sealing and consistently smooth operating torque throughout an extended service lifecycle. The true-union design allows rapid lateral removal of the valve body without dismantling pipework, simplifying maintenance routines and reducing plant downtime. Crucially, the valve retains exact dimensional consistency with the classic Type 546 platform, sharing the identical z-dimension and union nut threading for effortless drop-in replacement and upgrade of existing industrial pipe installations.

A standard lockable ergonomic hand lever provides safe manual operation, preventing accidental tampering or position shifting in critical plant environments. For automated process management, the valve body incorporates integrated stainless steel mounting inserts ready for standardized mounting brackets compliant with DIN/ISO 5211. This modular architecture allows direct field conversion to pneumatic or electric actuators, fail-safe spring-return handles, or multifunctional digital position feedback modules without interrupting pipe alignment. As an authorised Georg Fischer distributor, BigWeld supplies certified Type 546 Pro components directly to industrial installers and process engineers.