Ashcroft 83195 Pressure Gauge 30 Psi 3.5 in Dial Npt

Product Description

The ASHCROFT 83195 is a liquid-filled analog pressure gauge designed for accurate system pressure monitoring in plumbing, HVAC, and industrial service applications. It features a 3.5-inch dial with a 0 to 30 psi range and delivers 1% of scale accuracy, making it suitable for low-pressure system diagnostics and routine service checks. The stainless steel case provides corrosion resistance in wet or chemically active environments. The glycerin or liquid fill dampens pointer vibration, extending service life and improving readability on systems with pulsating pressure. Installed via a 1/4-inch NPT center back mount connection, this gauge fits standard process ports found throughout residential and light commercial systems.

This gauge is well suited for use on water supply lines, boiler systems, hydronic heating loops, pool and spa equipment, and compressed air or gas service where pressures do not exceed 30 psi. The center back mount orientation allows for flush panel installation or direct pipe mounting where the gauge face needs to be visible straight-on. The 3.5-inch dial size provides clear readability in typical mechanical room or equipment room environments. Licensed plumbers, HVAC technicians, and pool service professionals commonly specify this gauge for both permanent installation and field service use.

Key Features

• 0 to 30 psi pressure range suitable for low-pressure plumbing and HVAC applications
• 3.5-inch analog dial for clear, easy-to-read pressure indication
• 1% of scale accuracy for reliable diagnostic and monitoring use
• Liquid-filled case dampens pointer vibration and extends gauge service life
• Stainless steel case resists corrosion in wet and chemically active environments
• 1/4-inch NPT center back mount fits standard process connections

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for residential and light commercial plumbing, HVAC, hydronic, and pool systems using standard 1/4-inch NPT back-mount pressure ports with a maximum operating pressure of 30 psi.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC or mechanical technician. Shut down and depressurize the system completely before removing any existing gauge or fitting the new gauge to the process connection. Apply an appropriate thread sealant to the NPT threads and hand-tighten before using a wrench to snug the connection — avoid over-torquing the stainless steel case. Verify the system pressure range does not exceed the 30 psi maximum rating of this gauge before returning the system to service.