B-Series NEMA 4X Pressure Switch

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 boiler/burner, NACE and fire-safe applications.

Key Features:
  • Special designs for UL fuel and steam limit control
  • Adjustable setpoints from 15%-100% of range
  • Fixed or limited adjustable deadband
  • Wide selection of switch elements
  • Stainless Steel, Buna, Viton, Teflon and Monel diaphragms available for compatibility
  • Internal setpoint locking screw
  • SIL3 Capable
  • FM, UL, CE, CRN and 3A approved
  • RoHS Compliant

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


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