Armstrong Fluid Technology 216942-300 Valve 321042-401 Environmentally Hardened: NEMA 4X watertight

Environmentally Hardened: NEMA 4X watertight enclosure and aluminum construction prevent corrosion in demanding mechanical rooms

reducing the risk of accidental positioning

This high-spec condenser fan blade is critical for ensuring consistent airflow across the condenser coils

it can be mounted in horizontal

this electronically commutated motor utilizes advanced internal programming to regulate torque and airflow

Armstrong Fluid Technology 216942-300 Valve 321042-401 Environmentally Hardened: NEMA 4X watertightThe Armstrong Fluid Technology 216942 300 Valve is a precision engineered 1 2" NPT Brass Hot Water Pressure Relief Valve designed for high performance hydronic heating systems. Factory set at a 30 PSI relief pressure, this RL 11 relief valve serves as a critical safety component by automatically discharging excess pressure to protect boilers and downstream piping from structural damage. Constructed from high grade, corrosion resistant brass, it