Ashcroft 80248XLL Pressure Gauge 4.5 in Dial Rear Flange

Product Description

The ASHCROFT 80248XLL is an analog pressure gauge designed for accurate system pressure monitoring in industrial, HVAC, plumbing, and process applications. It features a 4.5-inch dial for easy readout at a distance, a rear flange mount for panel or bulkhead installation, and a 0.25-inch threaded connection. The wetted parts are stainless steel, making this gauge compatible with a wide range of media. Accuracy is rated at 0.5% of scale, meeting the demands of precision-sensitive installations. The aluminum case keeps weight low while providing durable housing. This gauge is a dry (no-fill) unit, with no liquid filler present.

This gauge is suited for residential and commercial installations where panel-mounted pressure indication is required. The rear flange mount allows it to be flush-mounted into control panels, equipment enclosures, or instrument boards. Typical applications include boiler systems, compressed air systems, water supply lines, HVAC hydronic systems, and general process piping. Licensed plumbers, HVAC technicians, and industrial maintenance professionals commonly install this type of instrument. The stainless steel wetted parts make it appropriate for use with mildly corrosive media as well as standard water and air service.

Key Features

• 4.5-inch analog dial for clear, at-a-distance pressure readings
• 0.5% of scale accuracy for precision monitoring
• Stainless steel wetted parts for broad media compatibility
• Aluminum case construction for lightweight, durable housing
• Rear flange mount design for panel and bulkhead installations
• Dry gauge — no liquid filler, simplifying disposal and maintenance

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for systems requiring a 4.5-inch dial, rear flange mount, and 0.25-inch threaded connection with stainless steel wetted parts.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified instrumentation professional. Isolate and depressurize the system fully before removing an existing gauge or installing this unit. Use appropriate thread sealant on the NPT connection per the applicable plumbing or mechanical code. Do not over-tighten the threaded connection, as this can damage the gauge socket or process fitting.