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This HVACR system component features a sensitive bellows design for precise pressure modulating
Fail-Safe Protection: Integrated spring return mechanism automatically returns the valve to its normally closed position upon power interruption
Key Benefits for Technicians: Direct OEM Compatibility: Precise fit for Bard wall-mount units
Can this part replace a standing pilot valve
Siemens Building Technology ZM121/A Control 318172-701 This HVACR system component featuresThe Siemens Building Technology ZM121 A Control is a ruggedized terminal housing signal transducer designed for the precise regulation of magnetic valves in high performance HVACR and industrial processes. This Phase Cut Interface acts as a dedicated power amplifier, converting either a 4 20mA current signal or a 0 20V phase cut control signal into a reliable 0 20V DC phase cut output. Engineering for field durability, the ZM121 A Siemens module
US$ 39.95
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