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pair this body with a Danfoss RA 2000 operator to achieve modulating control and eliminate the typical "all-or-nothing" heating cycles found in traditional cast iron radiators
this assembly protects the internal valve seat and float mechanism from fouling
Key Benefits Precision Safety: Calibrated for 150°F (Open) / 120°F (Close) to prevent heat exchanger damage
3-2-3% of full scale across any commercial HVAC pneumatic control environment
Enhanced Efficiency: Precise superheat management prevents evaporator flood-back and maximizes system performance
McDonnell & Miller FS7-4J Switch Els PW 29614 pair this body with aThe McDonnell & Miller FS7 4J (Part Number 120060) is a heavy duty industrial liquid flow switch designed for high demand applications including secondary filtration, hydronic heating, and process cooling. This model features a 1 1 4" BSPT connection and is equipped with a single pole, double throw (SPDT) snap switch, allowing for simultaneous make and break circuit control. Built for durability, it utilizes brass construction and a magnetic switching