Diaphragm Valve Type 515 PVC-C Metric Spigots PN10

  Datasheet (PDF)

The Georg Fischer Type 515 diaphragm valve in PVC-C is an engineered industrial solution for precise flow regulation, throttling, and dependable shut-off in aggressive fluid handling systems. Manufactured with metric solvent cement spigots and standardized face-to-face dimensions conforming to EN 558, this PN10 valve integrates cleanly into rigid industrial piping networks across dimensions d20 to d63 mm (DN15 to DN50). Produced from post-chlorinated polyvinyl chloride (PVC-C, RAL 7038 Agate Grey), the valve exhibits elevated chemical resistance and mechanical rigidity under continuous operating temperatures up to 80 degrees Celsius.

A defining technical advancement of the Type 515 is its compact body architecture. Replacing conventional four-bolt bonnet assemblies with a single central housing nut, the valve ensures uniform circumferential surface pressure across the diaphragm weir. This construction eliminates external metal bolts susceptible to environmental corrosion and simplifies servicing, allowing technical teams to inspect or replace internal components without removing the body from the pipeline. Furthermore, the optimized fluid-dynamic interior delivers double the flow capacity compared to predecessor valves, lowering operational pressure drops.

Engineered for high chemical duty, the valve accommodates interchangeable EPDM and dual-layer PTFE/EPDM diaphragms, ensuring zero-leakage isolation when transporting aggressive acids, alkalis, and demineralized water. Process consistency is maintained via an ergonomic manual handwheel featuring an integrated locking mechanism to prevent inadvertent drift from line vibration. The upper bonnet supports optional self-adjusting multifunctional modules equipped with integrated limit switches for process feedback.

As an authorised Georg Fischer distributor, BigWeld supplies certified thermoplastic piping systems and industrial valves across Europe, delivering complete technical solutions for chemical synthesis, surface finishing, and industrial water treatment installations.