Barksdale Pressure Activated Switch 9048-4

The Barksdale 9048-4 is a sealed piston pressure activated switch designed for reliable performance in demanding industrial environments. This model features a rugged, weatherproof enclosure suitable for harsh conditions, with a proof pressure rating of 10,000 PSI (690 BAR), making it ideal for high-pressure applications such as hydraulic systems, oil and gas equipment, and process control. Key benefits include adjustable set points for precise control, high repeatability, and durability against vibration and shock. Compared to similar products like those from Ashcroft or United Electric, the Barksdale 9048-4 offers superior sealing against contaminants and a compact design for easy installation. Drawbacks may include the need for periodic calibration in extreme environments and higher cost for specialized variants. It supports electrical ratings up to 480V AC at 15A, enabling integration with various control systems. Applications span manufacturing, aerospace, and marine industries where accurate pressure monitoring is critical. The unit in the images appears used with visible wear, but functional based on intact labeling and structure. For detailed specs, refer to Barksdale's official datasheet (available at https://www.barksdale.com/sites/default/files/2021-05/9048.pdf).