Ashcroft 94921 Pressure Gauge 100 Psi 3.5 in Npt

Product Description

The ASHCROFT 94921 is an analog pressure gauge designed for accurate pressure monitoring in mechanical and process systems. It features a 3.5-inch dial with a range of 0 to 100 psi and delivers 1% of scale accuracy, making it suitable for applications where reliable readings are critical. The stainless steel case provides durability in demanding service environments. Connection is via a 1/4-inch NPT thread with a center back mount configuration. This gauge is typically installed by licensed plumbers, HVAC technicians, and industrial maintenance professionals.

The ASHCROFT 94921 is well suited for use in plumbing, HVAC, and light industrial systems where monitoring line pressure up to 100 psi is required. The center back mount orientation allows the gauge to sit flush against panels or pipe assemblies, keeping the dial face clearly visible. The dry, non-liquid-filled design makes it straightforward to handle and install in standard service conditions. It is commonly used on pressure test points, boiler systems, air compressor lines, and water supply circuits.

Key Features

• 0 to 100 psi pressure range with 1% of scale accuracy
• 3.5-inch analog dial for clear, at-a-glance readings
• 1/4-inch NPT center back mount connection
• Stainless steel case for corrosion resistance in tough environments
• Dry (non-liquid-filled) construction for easy handling and installation

Compatibility

Designed as an OEM-style replacement or direct-fit gauge for residential and light commercial plumbing, HVAC, and industrial pressure monitoring applications requiring a 1/4-inch NPT center back mount connection.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or industrial mechanic. Shut off system pressure and relieve all residual pressure before removing or installing any gauge. Apply appropriate thread sealant to the NPT connection per local plumbing code requirements. Do not overtighten the threaded connection, as this can damage the gauge socket or distort readings.