A differential pressure by-pass valve is a valve that opens and closes automatically in response to the motorized valves or thermostatic radiator valves in your system opening and closing. The valve then dissipates the head pressure produced by a heating circulating pump, lengthening the life of your pump and decreasing the noise produced by the system.
Differential pressure valves, radiant heat controls, and other radiant heat supplies can be found at www.supplyhouse.com
