Diaphragm pressure switch B series
differentialfor compressorsfor pumps

diaphragm pressure switch
diaphragm pressure switch
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diaphragm, differential
industrial, OEM, for pumps, for the chemical industry, for the petrochemical industry, for compressors, for marine applications
Other characteristics
adjustable, IP66
Process temperature

Min.: -19 °C (-2 °F)

Max.: 65 °C (149 °F)

Pressure range

Min.: 0 psi

Max.: 3,000 psi


The Ashcroft® B4 pressure switch is designed for use in virtually all industrial and OEM applications. Providing reliability and long-cycle life, it is ideal for satisfying requirements for pressure control, shutdown or alarm operations. Special designs are available to meet NACE and Fire-safe applications. Key Features: Adjustable setpoints from 15%-100% of range Fixed or limited adjustable deadband Wide selection of switch elements and wetted materials Internal setpoint locking screw Specifications: Accuracy: ±1.00% full scale NEMA 4X (IP66) epoxy coated aluminum enclosure Single setpoint SPDT or DPDT switching option Pressure ranges: vacuum to 3,000 psi The B4 pressure switch may be used on a host of applications is ideal where accurate and reliable pressure measurements are essential: Process Market: Offshore Oil Rigs Chemical and Petrochemical Plants Pulp and Paper Mills Power Plants Steel Mills Water and Sewage Treatment Facilities Industrial Market: Pumps, Compressors and Turbines Boilers and Burners Degreasers and Evaporators Recovery Systems Reverse Osmosis Systems and Filters Food Processing Ground Support Equipment Hydraulic and Lubrication Systems Heating and Air Conditioning Marine Equipment Specialized OEM Equipment



*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.