SOR Static O-Ring Pressure Switch 4NN-K4-P1-C2A

The SOR Static O-Ring Pressure Switch model 4NN-K4-P1-C2A is a robust, adjustable pressure sensing device designed for industrial applications requiring reliable pressure monitoring and control. Manufactured by SOR Inc., this switch utilizes a static O-ring seal to prevent leakage and ensure durability in harsh environments, such as oil and gas, chemical processing, and manufacturing facilities. Key features include an adjustable set point range of 4-25 PSI, with overrange protection up to 100 PSI and proof pressure up to 1000 PSI, making it suitable for low-pressure systems where precision and safety are critical. Advantages over similar products include its compact, explosion-proof housing (NEMA 4X rated), hermetically sealed switches for reliability in corrosive or wet conditions, and easy field adjustability without special tools. Benefits encompass high repeatability (±1% of range), long service life due to stainless steel wetted parts, and compatibility with various media like gases and liquids. Drawbacks may include limited suitability for ultra-high-pressure applications and the need for periodic calibration in extreme temperature fluctuations. This model excels in applications like pump control, safety shutdowns, and process automation, offering superior vibration resistance compared to bellows-type switches.