The International Environmental 70665406 Relay is an OEM replacement part engineered for high-reliability switching in fan coil units and industrial HVACR systems

5 HP motor configuration

Constructed from oil and heat-resistant neoprene with high-tensile polyester cord reinforcement

As a primary boiler replacement part

The 150 PSI rating must match the Maximum Allowable Working Pressure (MAWP) of your tank

Siemens Building Technology 599-03168 Valve 318518-761 The International Environmental 70665406 RelayThe Siemens 599 03168 is a professional grade Flowrite 599 Series globe valve designed for high performance throttling in commercial hydronic and steam systems. This 1 1 4 inch NPT 2 way valve features a normally open (NO) configuration and is engineered with a 16 Cv equal percentage flow characteristic, ensuring precise modulation and consistent heat transfer across the coil. Constructed with a heavy duty bronze body and brass trim, it is rated for