Gauge

Gauge Pressure Switches

Gauge pressure switches monitor pressure relative to ambient atmospheric pressure. Via a single port vented to the atmosphere, they actuate an electrical contact at a preset pressure threshold to trigger a control signal or alarm in the system. In industrial use, these switches are highly reliable and precise, employing snap-action disc spring mechanisms that ensure accurate, repeatable switching even under shock and vibration.

They are built with durable wetted materials (e.g. stainless steel or aluminum) for corrosion resistance and a long, maintenance-free service life. Many models have adjustable setpoints for fine-tuning to specific requirements.

Gauge pressure switches are used across industries such as oil & gas, power generation, water treatment, manufacturing, and chemical processing. They come in general-purpose, weatherproof, and explosion-proof variants to suit harsh or hazardous environments. In these settings, the switches monitor critical pressures in pipelines, vessels, and other equipment and keep processes within safe limits.

When integrated into control systems, gauge pressure switches can directly initiate safety measures if pressure exceeds set limits—triggering alarms or shutting down machinery to prevent damage. This automatic action protects personnel and equipment and maintains safe operations.