Barksdale D2T-B3SS-UL-S0090 Pressure or Vacuum Activated Switch

The Barksdale D2T-B3SS-UL-S0090 is a high-precision, dual-setpoint diaphragm pressure switch designed for low-pressure and vacuum applications in industrial environments. Manufactured by Barksdale Inc., this model features a rugged, corrosion-resistant stainless steel construction (B3SS designation) and UL listing for safety compliance. It offers adjustable pressure ranges from 0.03 to 3 PSI, making it ideal for monitoring and controlling systems in HVAC, pneumatic equipment, filtration, and process automation where precise low-pressure detection is critical. Key benefits include high repeatability, tamper-resistant adjustments, and a terminal strip for easy wiring, providing reliable performance over competitors like Ashcroft or Dwyer switches by offering better vibration resistance and a wider operating temperature range. Drawbacks may include higher cost compared to basic mechanical switches and the need for periodic calibration in harsh environments. This unit appears new or unused based on images, with no visible wear, and includes a special factory set point at 0.76 PSI decreasing. It excels in applications requiring dual switching for alarms or shutdowns, enhancing system safety and efficiency. For detailed specs, refer to Barksdale's official datasheet (available at https://www.barksdale.com/sites/default/files/2021-07/D1T_D2T_EN.pdf). Model decoder: D2T (dual setpoint), B3SS (stainless steel diaphragm), UL (UL listed), S0090 (special option, likely custom range or setting).