A new four-page technical brochure from Caleffi conveys specification data including performance, material and dimensional information specific to the differential pressure by-pass valve. The valve is used in systems with a fixed speed circulating pump supplying several zones controlled by two-way zone valves. This valve ensures that the head pressure of the pump is proportional to the number of two-way valves being closed, eliminating water hammer noise.
For more information, visitwww.caleffi.us.
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