3-Way ball valve type 543 Pro ABS Vertical

  Datasheet (PDF)

The Georg Fischer Type 543 Pro ABS three-way ball valve with vertical L-port configuration provides directional diverting and distribution control for chilled water, industrial cooling, water treatment, marine, and drinking water systems. Built for metric industrial piping networks from d16 up to d63, this valve offers a nominal pressure rating of PN10 at 20 degrees C and combines smooth manual operation with complete automation readiness for modern process installations.

Technical specifications

Designed with a vertical inlet and L-port diversion ball, the Type 543 Pro allows fluid routing between vertical and horizontal piping axes. The integrated mechanism provides full 360-degree rotation capability alongside a 90-degree turn limiter for precise positional indexing and flow switching.

• Nominal pressure rating: PN10 at 20 degrees C for metric piping systems
• Connection type: metric solvent cement sockets for solvent welding
• Ball seat material: low-friction, chemically resistant PTFE
• Gasket and backing seals: durable EPDM elastomer
• Manual control: lockable lever handle as standard on DN10 to DN50 sizes
• Actuation interface: integrated stainless steel mounting inserts for digital interface modules, pneumatic actuators, or electric actuators

Materials and standards

The valve body and union ends are manufactured from high-grade Acrylonitrile Butadiene Styrene in gravel grey (RAL 7001). This impact-resistant thermoplastic compound maintains outstanding ductility and strength even at low operating temperatures, making it particularly suited for refrigeration circuits and secondary coolant loops.

Complete mechanical backwards compatibility ensures that the Type 543 Pro seamlessly interfaces with first-generation Type 543 union nuts and valve ends, simplifying retrofit procedures and routine line servicing without replacing existing pipe assemblies. Integrated stainless steel threaded inserts in the valve base provide vibration-proof mounting points for pipe brackets and modular actuation accessories.

Applications

This three-way vertical configuration is engineered specifically for mixing, diverting, and bypassing duties across industrial process infrastructure. It is widely specified in commercial air conditioning, chilled water distribution, potable water treatment plants, marine cooling circuits, and industrial secondary refrigeration loops where metallic valves suffer from corrosion or scaling.