Siemens Building Technology 656-0017 Valve 318423-701 ensuring reliability in both freezing

ensuring reliability in both freezing and high-heat conditions

Heavy-Duty Build: Ball bearing motor construction and Class B insulation ensure thermal stability during continuous operation

Bi-Flow Capability: Engineered for versatility in R-22 heat pump applications

Replacing a faulty box is a standard solution for furnace pressure switch failure related to the secondary heat exchanger

The heavy-duty wiring terminals are engineered for a positive electrical connection

Siemens Building Technology 656-0017 Valve 318423-701 ensuring reliability in both freezingThe Siemens Building Technology 656 0017 is a heavy duty 1 2 inch pneumatic radiator valve engineered for proportional control in two pipe steam or hot water systems. This normally open (N. O.) assembly features an angle union valve body constructed from durable brass, designed specifically for terminal unit applications like convectors, fan coil units, and baseboard radiation. With a 2. 1 Cv capacity and a standard 3 8 psi spring range, this valve