Ashcroft 92821XLL Pressure Gauge 4.5 in Rear Flange 0-1500 Psi

Product Description

The ASHCROFT 92821XLL is an analog pressure gauge designed for accurate pressure monitoring in industrial, commercial, and mechanical system applications. It features a 4.5 inch dial with a rear flange mount configuration and measures pressure across a range of 0 to 1500 psi. The wetted parts are constructed from stainless steel for corrosion resistance, while the case is aluminum for a balance of durability and reduced weight. Accuracy is rated at 0.5 percent of scale, making it suitable for applications where reliable, repeatable readings are required. This gauge is a non-liquid-filled model and accepts a 0.5 inch thread connection at the rear entry. Licensed tradespeople and instrumentation technicians typically specify this unit for process piping, HVAC, and fluid system installations.

The 92821XLL suits a broad range of pressure measurement tasks in residential mechanical rooms, light commercial facilities, and industrial process environments. The rear flange mount allows panel or wall mounting with the dial face flush and accessible for routine observation. The 4.5 inch dial provides a large, easy-to-read analog display at a distance, which is practical in boiler rooms, pump stations, and air compressor installations where gauges are viewed frequently during system operation.

Key Features

• 4.5 inch analog dial for clear, at-a-distance pressure reading
• 0 to 1500 psi pressure range suitable for high-pressure fluid and air systems
• 0.5 percent of scale accuracy for reliable, repeatable measurements
• Stainless steel wetted parts resist corrosion in demanding fluid environments
• Aluminum case provides a lightweight, durable housing
• Rear flange mount design supports panel and wall installation
• Non-liquid-filled construction for standard dry-service applications

Compatibility

Designed as an OEM-style replacement or direct-fit pressure gauge for systems requiring a 4.5 inch dial, rear flange mount, 0.5 inch threaded connection, and a 0 to 1500 psi measurement range.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or instrumentation technician in accordance with applicable local mechanical codes and ASME B40.100 guidelines for pressure gauges. Always depressurize and isolate the system before removing or installing a gauge to prevent injury or equipment damage. Use appropriate thread sealant on the connection fitting and avoid overtightening, which can crack the gauge socket. Verify the process fluid compatibility with the stainless steel wetted parts before placing the gauge in service.