Ashcroft 80517XLL Pressure Gauge 3.5 in 0-15 Psi Center Back

Product Description

The ASHCROFT 80517XLL is an analog pressure gauge designed for accurate pressure monitoring in plumbing, HVAC, and industrial fluid systems. It features a 3.5 inch dial with a 0 to 15 psi range and delivers 1% of scale accuracy, making it suitable for low-pressure applications where reliable readings matter. The stainless steel case provides corrosion resistance in harsh or wet environments, while the bronze wetted parts hold up against common water and fluid media. Installed via a 1/4 inch center back mount connection, this gauge fits neatly against panels and equipment without requiring extended fittings. It ships as a dry, no-fill gauge ready for immediate installation.

This gauge is used in residential and light commercial applications including boiler systems, water supply lines, chilled water circuits, and low-pressure process piping. The center back mount configuration suits panel-mounted installations where the pipe or port enters directly from behind the gauge face. Plumbers, HVAC technicians, and pipefitters commonly install this gauge during system commissioning or as a service replacement on existing pressure monitoring points.

Key Features

• 3.5 inch analog dial for easy, at-a-glance pressure readings
• 0 to 15 psi pressure range suited for low-pressure fluid systems
• 1% of scale accuracy for reliable measurement in service applications
• Stainless steel case resists corrosion in wet or humid environments
• Bronze wetted parts compatible with water and common fluid media
• Dry, no-fill design requires no liquid filler maintenance
• 1/4 inch center back mount for clean panel or wall-mount installations

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for low-pressure plumbing, HVAC, and fluid process systems using a 1/4 inch center back mount connection.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off system pressure and relieve any residual pressure in the line before removing or installing the gauge. Apply thread sealant tape to the male threads per standard practice and do not overtighten, as this can damage the gauge socket. Verify that system operating pressure falls within the 0 to 15 psi range before putting the gauge into service.