4" Double Check Assembly OSY Valve Fire Protection Backflow Preventor Valve reliable water supply it reduces maintenance intervals and

it reduces maintenance intervals and ensures consistent fire safety performance

Clear Visual Indicator: Equipped with a prominently displayed status window that shows “SHUT” when the valve is closed

Supervised Switch: Integrated monitoring switch continuously signals valve status for immediate alerting of faults or irregularities

Its inline modular design

Precise Moisture Monitoring: Designed to accurately detect the presence of moisture in compressed air

4" Double Check Assembly OSY Valve Fire Protection Backflow Preventor Valve reliable water supply it reduces maintenance intervals andThe 4" Double Check Assembly with OS&Y Valve from Ames Backflows is an essential backflow preventor engineered specifically for robust fire protection systems. This critical component ensures a secure and compliant water supply by effectively preventing backflow contamination, making it ideal for both new installations and upgrades in commercial and residential properties. Durable Construction: Crafted from high grade materials, this assembly is built