When you need a 1-inch NPT solenoid valve that delivers consistent performance under thermal stress

Most failures result from seized damper blades or excessive friction in the linkage

Its PopTop™ design is a favorite among field technicians

these gaskets maintain high torque retention and chemical resistance against POE and mineral oils

offering an R22 capacity of 9

Patterson-Kelley 86-8335-0170 Air Flow Switch 322838-754 When you need a 1-inchThe Patterson Kelley 86 8335 0170 Air Flow Switch is a critical safety and operational component designed for high performance commercial boilers and water heaters. As an OEM airflow switch replacement, this unit utilizes a sensitive differential pressure diaphragm to detect proper combustion air or exhaust flow. It is engineered to interface directly with Patterson Kelley industrial air flow switch control systems, ensuring the burner only fires when