Armstrong International D41790 Air Vent Els PW 17895 Will this switch replace a

Will this switch replace a dual-port vacuum sensor

What does the 30 amp rating signify

The Heil Quaker ICP 1014829 Pressure Switch is the OEM replacement part specifically engineered for high altitude furnace applications

including TJSPA12930

Armstrong International D41790 Air Vent Els PW 17895 Will this switch replace aThe 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