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The ASHCROFT 351009S2BXLL15K is a heavy-duty analog pressure gauge built for high-pressure measurement in demanding industrial and mechanical service applications. It features a 3.5-inch dial, a 1/4-inch center back mount connection, and a pressure range of 0 to 15000 psi. Both the case and all wetted parts are constructed from stainless steel, making it well suited for corrosive media and harsh environments. Accuracy is rated at 1 percent of scale across the full range. The gauge is dry (non-liquid-filled), keeping it straightforward to install and read in stable-temperature environments. Licensed plumbers, pipefitters, and HVAC technicians commonly specify this gauge for high-pressure hydraulic, steam, and process piping systems.
This gauge is appropriate for residential, commercial, and light industrial applications where a reliable, corrosion-resistant pressure indicator is required. The center back mount configuration is typical of panel-mounted or pipe-tee installations where a flush or recessed profile is needed. The stainless steel wetted parts make it compatible with water, steam, oils, and many mildly corrosive process fluids. It is frequently used in hydronic heating systems, compressed air lines, pump discharge monitoring, and hydraulic test setups.
Designed as a direct-fit analog pressure gauge for systems requiring a 1/4-inch center back mount connection and a 3.5-inch dial in high-pressure service up to 15000 psi.
Installation should be performed by a licensed plumber, pipefitter, or qualified mechanical technician. Shut off and fully depressurize the system before removing any existing gauge or fitting. Apply thread sealant appropriate for the media and pressure rating to the 1/4-inch male threads, and tighten to the fitting manufacturer's recommended procedure without over-torquing the gauge socket. Verify the system pressure range does not exceed the gauge maximum before returning the system to service.
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