Armstrong International D41790 Air Vent 30067439-890 Common Questions How do I

Common Questions How do I calibrate the set point for specific duct velocities

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

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

ensuring electrical impedance and mounting alignment match original specifications

Armstrong International D41790 Air Vent 30067439-890 Common Questions How do IThe 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