Ashcroft 1073-DV Gauge Saver One Half Inch Size Instrumentation Accessory

Ashcroft 1073-DV Gauge Saver, a 1/2 inch size instrumentation accessory, is a throttling device designed to protect pressure gauges by isolating corrosive process fluids from the bourdon tube. It uses an elastomeric bladder that separates the process fluid from the pressure element, while the space above the bladder is filled with a liquid such as glycerin or silicone, and a throttling felt is placed in the fluid path where it won’t contact the process fluid. This configuration helps dampen pulsations, extend gauge life, and preserve accuracy when measuring in challenging conditions, with the throttling effect adjustable before assembly. The steel bulb chamber is easily cleaned, and the unit can be attached to the gauge at the factory or installed in the field, making it suitable for applications where temperature, pressure, and material compatibility would threaten the bourdon tube if unprotected. Commonly used in process instrumentation to safeguard gauges from corrosive or viscous media, the Gauge Saver adds a small, but measurable, impact on accuracy—about half a percent—while delivering longer instrument life and reduced maintenance in demanding environments.