HCAL123310 3/4 in Press Differential By-Pass Valve - Sweat (...)

Caleffi Differential Pressure By-Pass Valve With Graduated Scale, 519 Series, 3/4 in Nominal, Sweat Union Connection, 9 gpm Flow Rate, 150 psi, ABS/EPDM Seal, Brass, 32 to 230 deg F, Additional Information: 2-1/8 in Top to Inlet Center, 5-9/16 in Inlet to Outlet Length, Water/Glycol Media

The differential pressure by-pass 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. It will by-pass the differential pressure created by the pump as the zone valves close, thus eliminating water hammer noise.

Manufacturer: Caleffi

Product Features

• Differential pressure by-pass valve
• Adjustable from 2 to 10 psig

Product Attributes

Availability