Barksdale D1S-A150 Pressure Switch

Barksdale D1S-A150 Pressure Switch is a diaphragm-type, stripped (no housing) pressure switch intended for control-box installations with an adjustable set point up to 150 psi. It offers instrument-grade accuracy with a repeatability of ±0.5% of the adjustable range and a choice of SPDT or SPST configurations, delivering reliable snap-action operation across its range. The switch’s wetted parts are 304 stainless steel with a 17-7 PH stainless steel diaphragm, and it uses a 1/4" NPT female pressure connection for straightforward integration into pneumatic or hydraulic circuits. Electrical ratings accommodate common industrial loads: 10 A at 125/250 VAC, and 3 A at 480 VAC (Class A or H limit switch), making it suitable for general industrial control tasks, process equipment, and hydraulic power units where stable, repeatable switching is required. Designed for positive pressure or vacuum applications, the D1S family is known for compact form and precision in environments where pressure pulsations are low, typically under 25 cycles per minute.