Backflow Preventers

Reduced pressure zone backflow preventers by Watts are used to prevent the reverse flow of liquids caused by backsiphonage or back pressure in a plumbing system. They also eliminate the chances of entry of contaminants back into potable water supply lines. These Watts backflow preventers feature a compact, modular design for installation in tight spaces and their single-cover, top-entry facility allows easy accessibility for maintenance purposes. They come equipped with replaceable seats and seat discs, and do not require any special tools for servicing. Raptor Supplies offers a wide range of Watts reduced pressure backflow preventers in different connection types and body materials.

Apollo RPDALF4AN Series reduced pressure detector assemblies (RPDAs) are used in plumbing and water supply systems to monitor and detect potential backflow conditions, thereby preventing contaminants to enter the potable water supply. They employ a reduced pressure zone configuration, consisting of two check valves and a pressure relief valve in between. This arrangement helps maintain a lower pressure zone between the two check valves, reducing the risk of backflow. These vertical up / vertical down oriented assemblies are integrated with an internal swivel connection that helps pivot the second check valve (which is situated downstream) to 180 degrees vertical up flow orientation. This allows consistent water flow in situations where the backflow preventer is in a vertical up (upstream) position. They are made of stainless steel for excellent durability and feature a bypass assembly to allow quick maintenance and servicing without interrupting the water supply. These lead-free devices also include flowmeters that measure the flow rate of water in gallons per minute, snap-in check retainers to hold the check valves in place and stainless steel coupling & bolts to get access to check valves and relief valves, respectively.