Ashcroft 94922 Pressure Gauge 160 Psi 3.5 in Npt Back Mount

Product Description

The ASHCROFT 94922 is an analog pressure gauge designed for monitoring system pressure in plumbing, HVAC, and industrial fluid handling applications. It features a 3.5-inch dial with a measurement range of 0 to 160 psi and a stainless steel case for corrosion resistance in demanding service environments. The 1/4-inch NPT center back mount configuration allows direct inline installation on pipe fittings and manifolds. Accuracy is rated at 1 percent of full scale, making this gauge suitable for system diagnostics, commissioning, and ongoing monitoring where reliable pressure indication is required. The dry, non-liquid-filled construction keeps the design straightforward and easy to service.

This gauge is used across residential and light commercial applications including hydronic heating systems, domestic water supply lines, compressed air systems, and process piping where a back-mount orientation suits panel or inline installations. Plumbers, HVAC technicians, and mechanical contractors commonly specify this gauge for pressure monitoring points on boilers, pumps, expansion tanks, and air compressors. The stainless steel case holds up in wet or corrosive environments where standard black steel cases would degrade over time.

Key Features

• 3.5-inch analog dial for clear, at-a-distance pressure readings
• 0 to 160 psi range covers typical plumbing and HVAC system pressures
• 1 percent of full-scale accuracy for reliable diagnostic readings
• 1/4-inch NPT center back mount fits standard pipe fittings and manifold ports
• Stainless steel case provides corrosion resistance in wet service environments
• Dry, non-liquid-filled construction simplifies installation and servicing

Compatibility

Designed as an OEM-style replacement or direct-install pressure gauge for residential and commercial plumbing, hydronic, and HVAC systems using 1/4-inch NPT back-mount gauge ports.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off system pressure and depressurize the line before removing any existing gauge or fitting. Apply thread sealant tape or pipe compound to the NPT threads per standard plumbing practice and applicable codes such as the IPC or IFGC. Do not overtighten the gauge body using the case as leverage — use a wrench on the hex of the gauge stem only.