Ashcroft 94487 Pressure Gauge 0-160 Psi 3.5 in Dial Npt

Product Description

The ASHCROFT 94487 is a liquid-filled industrial pressure gauge designed for accurate, reliable pressure monitoring in demanding service environments. It features a 3.5-inch analog dial with a measurement range of 0 to 160 psi and a stated accuracy of 1 percent of scale. The lower-mount, 1/4-inch NPT connection makes it straightforward to install inline or at the base of a pressure port. The stainless steel case and polycarbonate lens protect internal components against moisture, corrosive atmospheres, and mechanical abuse. Liquid fill dampens needle movement caused by pressure spikes or system vibration, extending service life and improving readability under dynamic conditions. Licensed HVAC technicians, pipefitters, plumbers, and industrial maintenance professionals are the primary installers of this gauge.

This gauge is suited for residential and commercial plumbing systems, HVAC hydronic loops, compressed air lines, and light industrial process piping where continuous pressure indication is required. The lower-mount NPT connection is compatible with standard pipe fittings and instrumentation ports found across a wide range of fluid and gas service applications. The 3.5-inch dial provides a clear analog readout that is legible from a distance in both panel and field installations. The liquid fill makes it especially useful in applications with pump-induced pulsation or frequent pressure cycling.

Key Features

• 0 to 160 psi measurement range with 1 percent of scale accuracy
• 3.5-inch analog dial for clear, at-a-glance pressure readings
• Liquid-filled case dampens vibration and pulsation for extended gauge life
• 304/316 stainless steel case for corrosion resistance in wet or chemical-exposure environments
• 316 stainless steel Bourdon tube for compatibility with aggressive media
• Polycarbonate lens resists impact and fogging
• Certified to CRN, IP54, IP65/NEMA 4, PED, and RoHS standards

Compatibility

Designed as an OEM-style or direct-replacement industrial pressure gauge for any system using a 1/4-inch lower-mount NPT pressure port with a 0 to 160 psi service range.

Installation Notes

Installation is typically performed by licensed plumbers, pipefitters, or HVAC technicians in accordance with applicable local codes and the system manufacturer's specifications. Shut off and depressurize the system completely before removing an existing gauge or installing this unit. Apply thread sealant or PTFE tape to the NPT threads and tighten to a snug fit using an appropriately sized wrench — avoid over-tightening, which can crack the gauge body or distort the Bourdon tube. After pressurizing the system, inspect the connection for leaks before returning equipment to service.