Pressure Switch With K Knob 500-3,600 PSI

The Hyvair PS20-3.6K pressure switch delivers reliable, adjustable pressure control across a wide 500–3,600 PSI range, making it ideal for demanding hydraulic and lubrication systems. Designed for use with hydraulic and lubricating oils, this compact switch helps protect equipment, automate system functions, and maintain consistent operating pressure to reduce downtime and maintenance costs.

A piston-actuated sensing element provides consistent, repeatable performance in high-pressure environments. The switch offers ±3% repeatability, ensuring stable set points even under frequent cycling and varying load conditions. With a maximum operating frequency of 20 cycles per minute, the PS20-3.6K is well-suited for continuous-duty industrial applications.

The unit features a 1/4″ female NPT pressure port for straightforward integration into existing hydraulic circuits. A SPDT (single-pole, double-throw) microswitch allows flexible wiring for either normally open or normally closed operation, enabling use for equipment shutdown, pump control, alarm signaling, or interlocking with other system components.

Engineered for harsh environments, the PS20-3.6K operates in temperatures from approximately -25°C to 80°C (about -13°F to 176°F), supporting a broad range of mobile and industrial hydraulic applications. The rugged construction helps resist shock, vibration, and contamination commonly found in hydraulic power units, presses, and lubrication systems.

Field adjustability allows precise setting of the desired actuation point within the 500–3,600 PSI span, simplifying commissioning and pressure tuning. When equipped with the optional knurled adjustment knob, pressure settings can be changed quickly without tools, reducing setup time and making on-site optimization easier.

Choose the Hyvair PS20-3.6K pressure switch for robust, accurate, and easily adjustable pressure control in hydraulic or lubrication circuits where reliability and flexibility are critical.

Related categories: Pressure Switches & Transmitters · Pressure Switches with K-knob

Brand: Hyvair