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Built for precise humidity regulation
How do I set the auxiliary switch trip points
What is the maximum control voltage for the pilot circuit
Built for high-amperage HVAC controls
This heavy-duty unit is designed to interface seamlessly with 4-inch high-pressure and 5-inch low-pressure valve bodies
Siemens Building Technology 257-02040 Valve Assembly 322056-301 Built for precise humidity regulationThe Siemens Building Technology 257 02040 is a specialized 2 way normally open control valve assembly designed for high performance hydronic flow regulation. As a veteran grade pneumatic HVAC control valve, this unit is engineered with a 1 2 inch angle NPT by union male connection, facilitating streamlined installation in tight mechanical spaces. The forged brass body and internal brass trim ensure rugged reliability against the constant cycling of
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