SKU: 70455484128
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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Compatible with all Selectra Series 14 modulation systems for seamless direct-fired heating control
it will typically remain open down to approximately 3 PSI
persistent yellow tipping
Reliable Actuation: 120V/60Hz Fail-safe normally closed operation prevents accidental flow during power loss
a genuine OEM SPDT pressure switch designed for critical monitoring in HVACR equipment
Armstrong International C5490 Air Vent 30067439-890 Compatible with all Selectra SeriesThe Armstrong International C5490 (functionally identical to the TAVB 2) is a high performance stainless steel thermostatic air vent and vacuum breaker designed to optimize steam system efficiency. Engineered for pressures up to 150 PSI, this dual function HVACR component features a 1 2" NPT air vent connection and a 3 8" NPT vacuum breaker inlet. By automatically discharging air and non condensable gases during start up and operation, it prevents
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