Armstrong Fluid Technology 816304-051 Impeller 322838-754 this unit supports larger contactors

this unit supports larger contactors and multiple control loads without significant voltage drop

allowing technicians to verify circuit integrity without multi-meter probing

65" WC for precise vacuum sensing

the VAL19039 provides the dependable cutoff capacity necessary to protect high-value downstream equipment and ensure system integrity under standard operating pressures

or a failure to hold a pump-down test

Armstrong Fluid Technology 816304-051 Impeller 322838-754 this unit supports larger contactorsThe Armstrong Fluid Technology 816304 051 Impeller is a precision engineered 4. 75" bronze impeller designed for high efficiency fluid circulation in commercial and industrial HVAC systems. Specifically crafted for the Armstrong S 55 Series circulator pump and 1050 2B pump models, this non ferrous component ensures long term resistance to corrosion and scaling. Its robust construction facilitates optimal flow rates and maximum pump efficiency, making