SD-3 3/8 MPT backflow preventor

• Series 9BD dual check vacuum breakers for water supply lines prevent the reverse flow of contaminates, such as carbon dioxide gas and carbonated water, from entering the potable water supply
• Stainless steel body construction, rubber parts, dual check valves, ball check valve, and an atmospheric vent
• Series 9BD is designed for continuous pressure applications and complies with FDA food additive regulations
• Maximum Working Pressure: 150psi (10.3 bar)