Ashcroft 93755XLL Pressure Gauge 4.5 in Dial 0-600 Psi

Product Description

The ASHCROFT 93755XLL is an analog pressure gauge built for trade and industrial service applications requiring reliable, accurate pressure measurement. Featuring a 4.5-inch dial diameter and a rear flange mount configuration, this gauge is designed for panel or wall installations where a secure, flush-mounted setup is required. The wetted parts are stainless steel, making it suitable for use with a wide range of process media. The aluminum case keeps overall weight manageable at 2.5 pounds. Accuracy is rated at 0.5% of scale across a pressure range of 0 to 600 psi, meeting the demands of precision-critical installations in HVAC, plumbing, and industrial process systems.

This gauge is appropriate for residential and commercial installations where a large-dial, rear-mount pressure gauge is needed for system monitoring. The 4.5-inch dial provides clear readability at a distance, making it well suited for mechanical rooms, pump stations, boiler systems, and process panels. The 0.25-inch thread connection is standard for most gauge port fittings. The non-liquid-filled design keeps maintenance straightforward and is compatible with dry-environment mounting locations where vibration is minimal.

Key Features

• 4.5-inch analog dial for clear, at-a-distance pressure reading
• 0 to 600 psi pressure range for high-pressure system monitoring
• 0.5% of scale accuracy for precision measurement
• Stainless steel wetted parts for broad media compatibility and corrosion resistance
• Rear flange mount for secure panel or wall installation
• Aluminum case construction — lightweight at 2.5 pounds
• Non-liquid-filled (dry) design for low-vibration installation environments

Compatibility

Designed as a direct-fit replacement or new-installation analog pressure gauge for systems using a 0.25-inch threaded rear-entry gauge port with rear flange mounting, typical in HVAC, plumbing, boiler, and light industrial process applications.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or instrumentation professional. Depressurize and isolate the system completely before removing or installing any pressure gauge. Apply thread sealant or PTFE tape to the male threads per the applicable plumbing or mechanical code — do not overtighten, as aluminum and brass fittings can be damaged. Secure the rear flange mounting points evenly to prevent case stress and maintain accurate readings.