Hayward PBV Series Diaphragm Back Pressure Valves

Hayward’s PBV Series diaphragm back pressure valves prevent siphoning and eliminate varying dosage rates resulting from fluctuating downstream pressure. By applying back pressure to exceed the preset pressure level, the diaphragm lifts to allow liquid to flow through the valve to the injection point. Typical applications include chemical dosing, transfer, processing, and chlorination systems.

Key Features

• Available in PVC, CPVC, polypropylene, and PVDF
• Diaphragm design prevents siphoning
• Maintains consistent dosage rates
• Adjustable pressure settings
• True-union connections for easy installation
• Rated up to 150 PSI
• PBV Specification Sheet

Common Applications

Hayward PBV Series back pressure valves are commonly used in chemical dosing systems, water treatment, chlorination, and any process where maintaining consistent back pressure and preventing siphoning is critical.