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maintaining safe and efficient burner ignition across all HVAC heating systems
Reliable Actuation: 120V/60Hz Fail-safe normally closed operation prevents accidental flow during power loss
high-integrity connection during installation
it will typically remain open down to approximately 3 PSI
Armstrong International C5490 Air Vent 30067439-890 maintaining safe and efficient burnerThe 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