Ashcroft 91553XLL Pressure Gauge 4.5 in Dial 0-3000 Psi

Product Description

The ASHCROFT 91553XLL is an analog pressure gauge designed for accurate pressure measurement in demanding industrial and mechanical service applications. Featuring a 4.5-inch dial and a rear flange mount configuration, this gauge is built for panel or wall installations where a clean front face and secure mounting are required. The wetted parts are constructed from stainless steel, making the gauge suitable for use with corrosive or aggressive media. The aluminum case keeps overall weight low at 2.5 pounds. Accuracy is rated at 0.5 percent of scale across a range of 0 to 3000 psi. This gauge is specified and installed by licensed plumbers, HVAC technicians, pipefitters, and industrial maintenance professionals.

This gauge is well suited for high-pressure service in commercial plumbing, hydraulic systems, compressed air systems, and process piping where a rear-flange-mounted instrument is required. The dry, no-fill design makes it appropriate for environments where a liquid-filled gauge could present fluid contamination or temperature sensitivity concerns. The 4.5-inch dial provides clear readability at distance on panels and equipment enclosures. The 0.5-inch thread connection is standard for many instrument manifolds and direct-mount applications in trade and light industrial service.

Key Features

• 4.5-inch analog dial for clear, at-a-glance pressure readings
• 0 to 3000 psi range covers high-pressure hydraulic and compressed gas service
• 0.5 percent of scale accuracy for reliable, repeatable measurement
• Stainless steel wetted parts resist corrosion from aggressive process media
• Aluminum case reduces overall instrument weight
• Rear flange mount configuration suits panel and wall installations
• Dry, no-fill design eliminates liquid-fill maintenance concerns

Compatibility

Designed as an OEM-style replacement or direct-install pressure gauge for rear-flange-mount instrument applications in commercial plumbing, hydraulic, and compressed air systems requiring a 0.5-inch threaded connection and a 4.5-inch dial.

Installation Notes

Installation should be performed by a qualified plumber, pipefitter, or instrumentation technician in accordance with applicable local codes and ASME B40.100 gauge installation guidelines. Always depressurize and isolate the system before removing or installing a pressure gauge. Use appropriate thread sealant on the connection threads and avoid over-tightening, which can damage the gauge socket. Verify that the process media and operating pressure range are compatible with the gauge materials before placing the instrument in service.