As a #55 refrigerant orifice

Is it suitable for fan-powered box applications

Mechanical Reliability: Eliminates the need for batteries or complex programming

this wheel ensures optimal airflow delivery and balanced operation

Always verify the lead edge orientation against the existing motor rotation before installation

Watts 0278328 Valve 326058-757 As a #55 refrigerant orificeThe Watts 0278328 (Model 174A 2 50) is a high capacity ASME Section IV certified boiler pressure relief valve designed for commercial hot water space heating and domestic supply applications. Featuring a 2 inch NPT female threaded inlet and outlet, this bronze body safety valve provides critical overpressure protection for large scale boiler systems. It is factory set at 50 PSI, delivering a verified steam discharge capacity of 5,575,000 BTU hr. Its