American Backflow is a master parts distributor. We carry backflow repair parts and backflow preventers for Ames, Conbraco, Watts, Febco, Wilkins and more.
(and were otherwise compatible with) the backflow preventer assembly. Additionally, those who operate, inspect, maintain or repair such systems would need to learn and become familiar with repair maintenance and operation procedures for both a backflow preventer assembly and a separate shut-off valve...
A "backflow preventer" is a check valve installed on potable water supply piping to prevent possible contamination of the water supply system by backflowing but contaminated water from the building into the outside public water supply mains. In our photo (left) the blue arrow shows direction of...
Contractor is attempting to utilize a dual check backflow preventer in lieu of the temp jumper. Water dept main objection is chlorine attack on the internal stops/gaskets. Granted it is functioning and certified, it shouldn't allow the chlorine to make it's way back inside the backflow especia...
Thermal water expansion and/or water hammer downstream of the backflow preventer can cause excessive pressure increases. Excessive pressure situations should be eliminated to avoid possible damage to the system and device. See recommended freeze protection procedures. (Freeze Protection 765—Technical Sheet...