Ventilating and Bleed Valves PVC-C Type 591 and 595

This category features Georg Fischer PVC-C ventilating and bleed valves (Type 591 and Type 595), engineered for automatic air release, continuous deaeration, and vacuum venting in industrial chemical piping systems. Manufactured from chlorinated polyvinyl chloride (RAL 7038 Agate Grey) with EPDM or FKM seals, these valves operate at temperatures up to 80°C, preventing air locks during filling and protecting systems from negative pressure during draining.