Lever-Operated PVC-U Butterfly Valve PN 10 d75-d200

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The lever-operated PVC-U butterfly valve is an industrial-grade shut-off and throttling device engineered for precise flow control in process piping systems. Designed for installation between metric flange adaptors with backing flanges, this manual valve provides dependable bidirectional isolation and regulation across nominal sizes from d75 mm up to d200 mm (DN65 to DN200). The integrated multi-position lever features an indexed locking plate, allowing operators to secure intermediate flow angles accurately or achieve positive shut-off without dynamic seat displacement. Rated for an operating pressure of up to PN 10 (10 bar) at a reference media temperature of 20 degrees Celsius, it combines mechanical stability with minimal operating torque for frequent cycling duties.

Constructed from premium unplasticised polyvinyl chloride (PVC-U), the body and disc exhibit outstanding chemical inertness against a broad spectrum of inorganic acids, alkalis, saline solutions, and treated water. The sealing system incorporates high-resilience EPDM and SANTOPRENE gaskets, ensuring continuous drop-tight shut-off along the disc perimeter and stem bore while preventing internal media permeation. This robust elastomeric seal combination maintains elasticity across standard thermal operating windows, preventing valve binding and eliminating the need for periodic mechanical re-torquing in demanding industrial environments.

Engineered specifically for utility piping, industrial water treatment, modern irrigation networks, and commercial aquaculture, this PVC-U butterfly valve serves as a non-corroding, lightweight alternative to metallic wafer valves. Its compact face-to-face dimension simplifies line integration into existing flange assemblies, reducing physical stress on connected thermoplastic pipe runs. The ergonomic manual lever allows rapid quarter-turn actuation, visual position verification from any angle, and complete operational dependability without electrical or pneumatic auxiliary supply lines.