Barksdale D2T-H18SS Diaphragm Pressure Switch

The Barksdale D2T-H18SS is a robust, dual-setpoint diaphragm pressure switch designed for industrial applications requiring precise pressure and vacuum monitoring. Manufactured by Barksdale Controls, this model features a terminal block for easy wiring and is built to handle demanding environments with its NEMA 4 and 13 rated enclosure, providing protection against dust, water, and corrosion. It offers adjustable setpoints in the range of 0.4 to 18 PSI (0.028 to 1.24 BAR), with a proof pressure of 60 PSI (4.14 BAR), making it suitable for vacuum and low-pressure systems in industries like HVAC, process control, and pneumatic equipment. Key benefits include high repeatability, tamper-resistant adjustments, and compatibility with hazardous locations when properly configured. Compared to similar switches from competitors like Ashcroft or Dwyer, the D2T-H18SS excels in durability and ease of installation, though it may require periodic calibration for optimal performance. Drawbacks include its mechanical nature, which can be less precise than electronic alternatives in high-vibration settings. This unit appears to be new old stock based on packaging and minimal wear, ideal for controlling pumps, compressors, or alarms in automated systems.