Armstrong International D41790 Air Vent 30067439-890 ensuring a secure fit on

ensuring a secure fit on the motor shaft of compatible Carrier

Ensure the SPST switch is receiving sufficient airflow and that the thermal environment matches the 55°F/45°F threshold designed for this specific York replacement part

Key Benefits for Technicians Direct OEM Integration: Drop-in replacement for Raypak 007925F

High-volume installations across commercial and residential sectors rely on this specific zone valve actuator for its bubble-tight shutoff capabilities and ease of field replacement

ensuring electrical impedance and mounting alignment match original specifications

Armstrong International D41790 Air Vent 30067439-890 ensuring a secure fit onThe Armstrong International D41790, also identified as the AV 13 brass air vent, is a specialized automatic air vent designed for hydronic heating systems and hot water service. Featuring a dual connection design with 1 2" female NPT and 3 4" male NPT ports, this float actuated valve effectively manages air binding by purging accumulated air during system operation. Constructed from high grade brass, the unit is rated for operating pressures up to 150