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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
a TEFC (Totally Enclosed Fan Coled) motor is typically recommended
Check the boiler nameplate for the BTU or PPH rating to ensure this valve meets the safety overhead required by local jurisdiction
ensuring a precision fit that aftermarket alternatives fail to match
Always verify your specific model number against the blower specifications to ensure a match for mounting and electrical connections
the head plate
Siemens Building Technology 257-02055 Valve Assembly R-407C a TEFC (Totally Enclosed FanThe Siemens 257 02055 Valve Assembly is a high performance 2 way normally open valve designed for precision control of hot or chilled water and low pressure steam in terminal units. Built on the rugged Powermite 599 MT Series platform, this assembly features a 1 2 inch NPT connection and a 2. 5 Cv flow coefficient. The forged brass body is paired with stainless steel trim to ensure long term durability and resistance to scaling in demanding hydronic