Description
The Watts B911T Combo Back Flow Preventer and Pressure Reducing Valve provides make-up water and prevents reverse flow, which maintains the proper pressure balance in HVAC systems. It contains a pressure regulator and a dual check backflow preventer in one unit, allowing the regulator to control the entry of water yet preventing contamination in the supply line. It works with a spring-loaded regulator and check system that reacts to pressure variations and modifies the flow. Fitted in boiler feed lines in hydronic heating equipmen it is threaded into the piping during installation, which allows stable regulation of water flow.
