Relays

Pressure Relays

Pressure relays are pneumatic control devices designed to sense pressure signals and provide responsive, proportional output signals to control secondary equipment within industrial process systems. Utilizing precisely calibrated diaphragms or bellows mechanisms, they accurately convert input pressure changes into corresponding output signals, thereby enabling automatic process adjustments.

Pressure relays are essential for maintaining stable, accurate pressure control, ensuring operational safety, reliability, and efficiency in pneumatic instrumentation loops. Their robust construction and sensitivity to subtle pressure variations make them ideal for applications such as valve positioning, emergency shutdown systems, compressor sequencing, and actuator control.

Pressure relays are commonly used in industries like chemical processing, oil and gas, refining, power generation, and pulp and paper manufacturing to improve fluid flow, minimize system downtime, and ensure reliable processes by providing accurate and quick control of air pressure.