Ashcroft B422B-XFM Pressure Switch

Ashcroft B422B-XFM Pressure Switch is a B-Series industrial pressure switch designed to monitor and control pressure in hydraulic, pneumatic, and process systems. In the B-Series lineup, setpoints from 2 to 3000 psi are typically actuated by a diaphragm-sealed piston mechanism, delivering reliable, precise switching as process pressure changes. The standard Buna-N diaphragm configuration provides chemical compatibility for a broad range of industrial fluids and is engineered for rugged service in harsh environments. This model supports general-purpose use across industrial and OEM applications, where a clean electrical signal is generated when preset pressure thresholds are reached to drive pumps, compressors, and pressure-regulating equipment. B-Series switches are known for durable construction and repeatable performance, with configurations that suit field installation and various process connections. The B422B-XFM family embodies Ashcroft’s approach to dependable pressure switching for safety-critical control and protection in manufacturing, water handling, and process industries.