Pneumatic butterfly valve Type 243 PVC-U DA d63-140 mm PN10

  Datasheet (PDF)

The Georg Fischer Type 243 PVC-U double-acting pneumatic butterfly valve provides automated isolation and flow control in demanding industrial piping systems. Built in a robust lug-style body across metric sizes from d63 mm to d140 mm, this assembly combines the chemical resistance of unplasticised polyvinyl chloride with rapid actuation. Rated at PN10 (10 bar at 20 degrees Celsius), the valve ensures dependable bi-directional sealing when handling process water, chemical solutions, acids, and alkalis without corrosion.

Actuation is delivered by a pneumatic actuator featuring a corrosion-resistant glass-fibre reinforced polypropylene (PP-GF) housing. Powered by control air at 4.2 bar, the double-acting mechanism executes a 90 degrees cycle in 1 to 2 seconds. The actuator includes an integrated optical position indicator and standardised NAMUR interfaces conforming to VDI/VDE 3845, allowing direct installation of solenoid pilot valves, limit switches, and positioners for central supervisory process integration.

The lugged body design incorporates metric threaded inserts that permit end-of-line installation and unilateral pipe disassembly during maintenance without draining upstream sections. High-integrity elastomeric sealing in EPDM or FKM provides tight shut-off matched to media compatibility. The optimised disc profile reduces flow resistance and local pressure losses, sustaining high flow coefficients across industrial process loops.

As an authorised Georg Fischer distributor, BigWeld supplies the Type 243 valve to industrial contractors, skid builders, and water treatment specialists across Europe. Every assembly is factory tested to guarantee zero leakage and dependable torque performance. Engineered for water treatment skids, chemical handling, and cooling circuits, the Type 243 ensures long service life and straightforward maintenance.