SOR 12N-166-N4-CIA Pressure Switch

The SOR 12N-166-N4-CIA is a compact, industrial-grade pressure switch designed for low-pressure applications, particularly in monitoring and controlling systems requiring precise detection in the range of inches of water column (in WC). Manufactured by SOR Inc., this switch features a rugged NEMA 4 enclosure, making it suitable for harsh environments such as oil and gas, chemical processing, HVAC systems, and water treatment facilities. It operates by detecting pressure changes and activating electrical contacts to control pumps, alarms, or valves. Key advantages include high reliability, adjustable set points for customization, and a weatherproof housing that protects against dust and moisture. Compared to similar products like those from United Electric or Ashcroft, the SOR model offers superior durability in corrosive settings due to its stainless steel components and o-ring seals, though it may require periodic calibration for optimal accuracy. Drawbacks include limited high-pressure capabilities (overrange at 10 PSI) and the need for compatible low-pressure media. This unit appears used but functional, with visible calibration markings and set to close at 1 inch H2O on increasing pressure, ideal for applications like filter monitoring or leak detection. Overall, it provides cost-effective, precise control with minimal maintenance in demanding industrial setups.