Ashcroft 83224XLL Pressure Gauge 3.5in Lower Mount 30-0-300 Psi

Product Description

The ASHCROFT 83224XLL is an analog pressure gauge built for accurate measurement across a compound pressure range of 30 inches vacuum to 0 to 300 psi. The 3.5-inch dial provides a clear read from a distance, and the lower-mount, 1/4-inch threaded connection makes inline installation straightforward. The stainless steel case and stainless steel wetted parts deliver corrosion resistance in demanding environments. Accuracy is rated at 1% of scale, meeting general industrial and mechanical service requirements. This gauge ships dry with no liquid fill. Licensed HVAC technicians, plumbers, and mechanical contractors commonly use this style of gauge for system pressure monitoring and service diagnostics.

This gauge is suited for residential and light commercial applications where a compact, durable compound gauge is needed on hydronic heating systems, refrigeration circuits, compressed air lines, water supply systems, or other fluid-handling equipment. The lower-mount configuration allows the gauge to thread directly into a tee, valve, or manifold with the dial face pointing up or outward for easy viewing during service.

Key Features

• Compound pressure range: 30 inches vacuum to 0 to 300 psi
• 3.5-inch analog dial for clear, distance-readable display
• Stainless steel case and stainless steel wetted parts for corrosion resistance
• 1% of scale accuracy for reliable pressure readings
• Lower-mount, 1/4-inch threaded connection for direct inline installation
• Dry gauge — no liquid fill

Compatibility

Designed as a general-purpose replacement or new-installation pressure gauge for systems using a 1/4-inch lower-mount threaded port in HVAC, plumbing, and mechanical service applications.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified mechanical contractor. Isolate and depressurize the system completely before threading the gauge into the port. Use appropriate thread sealant or PTFE tape on the male threads and tighten with a wrench on the gauge hex — do not apply torque to the case body. Verify the system pressure range falls within the gauge rating before returning the system to service.