Reduced pressure principle backflow preventer consisting of a pressure differential relief valve located between two independently operated spring-loaded wye type center guided check valves, wye pattern body
Complete with two full port resilient seated ball valves for shut-off and four resilient seated ball valve test cocks
Noryl® replaceable seats and silicone rubber check discs
Entire unit serviceable in line
With BSP threaded connections
Available with stainless steel ball valve handles (optional)
