3-Way ball valve 543 Pro ABS, L/T-Port, d16-63mm, PN10

  Datasheet (PDF)

The Georg Fischer Type 543 Pro ABS 3-way ball valve handles precise diverting and mixing duties in industrial piping systems. It works at PN10 across the metric range from d16 (DN10) to d63 (DN50) and is available with an L-port core for directional switching or a T-port core for proportional mixing and flow division, with consistent hydrodynamic behaviour and low pressure loss in cooling, water treatment and process networks.

Body and ball are moulded in acrylonitrile butadiene styrene (ABS), which combines high impact strength with mechanical toughness over a broad thermal range, for chilled water circuits and secondary refrigeration loops. Low-friction PTFE ball seats backed by EPDM seals give bubble-tight shut-off, low operating torque and extended maintenance intervals.

The mechanism allows full 360 degrees rotation and carries an enclosed clip-on turn limiter for defined 90 degrees switching positions. True union ends with ABS solvent cement sockets permit direct installation and fast servicing without dismantling adjacent pipe runs, while stainless steel threaded inserts in the bottom housing allow vibration-proof anchoring to brackets or panels.

An ergonomic lockable hand lever is supplied as standard, and the valve interfaces directly with Georg Fischer EA25 electric actuators, accepting digital position feedback, LED status indication and internal anti-condensation heaters. Typical duties are secondary refrigeration, water purification, marine cooling and utility fluid handling.

• Material: ABS, body and ball
• Seats / seals: PTFE / EPDM
• Pressure rating: PN10 (10 bar)
• Dimensions: d16 to d63 mm, DN10 to DN50
• Port: L-port or T-port, true union solvent cement ends

As an authorised Georg Fischer distributor, BigWeld supplies the complete ABS metric valve and piping range across Europe, with technical documentation and project support for plant engineers and contractors.