Ashcroft 83266XLL Pressure Gauge 4.5 in Dial 0-800 Psi Rear Flange

Product Description

The ASHCROFT 83266XLL is an analog pressure gauge built for industrial and mechanical service applications where accurate, repeatable pressure readings are required. The gauge features a 4.5-inch dial for clear visibility at a distance and a rear flange mount for panel or wall installation. Wetted parts are stainless steel, making it suitable for use with mildly corrosive media. The aluminum case keeps weight low without sacrificing durability. Accuracy is rated at 0.5 percent of scale across a range of 0 to 800 psi. Licensed HVAC technicians, plumbers, and industrial mechanics install this type of gauge as part of system monitoring or commissioning setups.

This gauge is appropriate for residential and light commercial mechanical systems where a reliable panel-mounted pressure indication point is needed. Typical applications include compressed air systems, water supply lines, hydraulic circuits, and process piping where pressures fall within the 0 to 800 psi operating range. The rear flange mount design suits flush panel installations where the gauge face must sit flush against a surface. The non-liquid-filled design keeps the unit straightforward for dry-service environments where vibration and pulsation are not significant concerns.

Key Features

• 4.5-inch analog dial for high-visibility pressure reading at a distance
• 0 to 800 psi pressure range suitable for compressed air, water, and process lines
• Stainless steel wetted parts for compatibility with a range of media including mildly corrosive fluids
• Aluminum case construction reduces overall weight while maintaining structural integrity
• Rear flange mount design for clean panel or wall-mounted installations
• 0.5 percent of scale accuracy for precise system monitoring
• Non-liquid-filled for dry-service installations where vibration is not a primary concern

Compatibility

Designed as an OEM-style and aftermarket replacement rear flange mount pressure gauge for use on mechanical systems, process piping, and panel boards requiring a 4.5-inch dial gauge with a 0 to 800 psi range and a 0.5-inch threaded connection.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or industrial mechanic. Isolate and depressurize the system fully before removing an existing gauge or making any threaded connections. Apply thread sealant or PTFE tape to the male threads in accordance with the applicable plumbing or mechanical code before installation. Do not over-tighten the threaded connection, as this can damage the gauge socket or the mating fitting.