Patterson-Kelley 26-0000-0296 Pressure Switch 321894-709 Field-Proven Reliability: The robust float-and-bellows

Field-Proven Reliability: The robust float-and-bellows construction stands up to sediment and scale better than sensitive electronic alternatives

The 4L500 features a 1/2-inch top width and a 50-inch outside circumference

Technicians should check for continuity and verify resistance using a multimeter

The switch should be open

this replacement sensor wire features high-grade insulation rated for at least 105°C

Patterson-Kelley 26-0000-0296 Pressure Switch 321894-709 Field-Proven Reliability: The robust float-and-bellowsThe Patterson Kelley 26 0000 0296 Pressure Switch is a precise safety component engineered for high efficiency commercial boiler gas trains. As a dedicated low gas pressure switch, this device monitors supply pressure to ensure the burner operates within safe stoichiometric parameters. Designed for integration with the Patterson Kelley ENVI and NURO control systems, it provides a critical interlocking function that triggers a safety lockout if fuel