Barksdale DIT-H18SS Pressure Vacuum Actuated Switch

Barksdale DIT-H18SS Pressure Vacuum Actuated Switch is a diaphragm‑type sensor used to monitor pressure or vacuum and actuate an electrical circuit when a set threshold is reached. The H18SS designation signals a housed construction with a stainless‑steel diaphragm, designed to withstand demanding industrial environments and provide stable sensing over time. Used in pneumatic and vacuum systems, process equipment, HVAC controls, and safety interlocks, this switch can drive pumps, regulators, alarms, or relays as soon as the sensed pressure or vacuum crosses the configured setpoint. Variants in this family offer different setpoint configurations and electrical output arrangements; the exact specifications—such as actuation direction (pressure-decreasing or increasing), contact configuration, and ratings—vary by model, so consult the official Barksdale datasheet or authorized distributor listing for your specific installation.