Pressure Switches

A pressure switch is an electromechanical device designed to close or open an electrical circuit when a specific fluid or gas pressure is reached. HK Calibrations provides these essential components to Australian businesses for automated pump control, compressor regulation, and safety shut-off systems, ensuring operational consistency across manufacturing and HVAC sectors.

Mechanical switches use a physical diaphragm or piston to actuate a switch, requiring no external power, while solid-state (electronic) switches use a pressure sensor and digital logic for higher precision and cycle life. HK Calibrations stocks both varieties, including vibration-resistant models for harsh Australian mining and heavy industrial environments.

Most of our industrial pressure switches feature an internal or external adjustment screw that alters the spring tension to set the desired trigger point. HK Calibrations provides technical support to help Australian technicians correctly configure these setpoints, ensuring your equipment activates precisely when required by your process parameters.

Yes, our range includes heavy-duty NEMA-rated and explosion-proof pressure switches specifically designed for volatile environments. HK Calibrations ensures that Australian operators in the oil, gas, and chemical industries have access to certified switches that prevent electrical sparking in areas where flammable gases may be present.

Deadband, or reset differential, is the difference between the pressure at which a switch actuates and the pressure at which it resets. HK Calibrations offers switches with both fixed and adjustable deadbands, helping Australian facility managers prevent "chattering" or rapid cycling of motors and valves, which can lead to premature equipment failure.

To ensure reliable safety protection and process control, we recommend a professional performance test and calibration every 12 months. HK Calibrations offers expert calibration services with a 48-hour turnaround across Australia, ensuring your switches remain NMI-traceable and fully compliant with national ISO quality and safety standards.