Ashcroft 94484 Pressure Gauge 0-30 Psi 3-1/2 in Lower Mount

Product Description

The ASHCROFT 94484 is a liquid-filled industrial pressure gauge designed for accurate pressure monitoring in demanding service environments. It features a 3-1/2 inch analog dial with a 0 to 30 psi range and delivers 1 percent of scale accuracy. The stainless steel case and 316 stainless steel Bourdon tube provide corrosion resistance suitable for harsh fluid and gas systems. The glycerin or liquid fill dampens needle fluctuation caused by vibration or pulsation, extending service life and improving readability. HVAC technicians, plumbers, and industrial service professionals install this gauge on systems where a stable, precise pressure reading is critical.

This gauge is well suited for residential and light commercial plumbing, HVAC refrigerant and hydronic systems, compressed air lines, and general industrial piping. The 1/4 inch NPT lower mount connection allows direct inline or manifold installation. The polycarbonate lens resists impact and chemical exposure. It is rated to IP54 and IP65/NEMA 4, making it appropriate for wet or wash-down locations. Series 1009 gauges are commonly specified where certification to CRN, PED, or RoHS standards is required by local code or project specification.

Key Features

• Liquid-filled design dampens needle vibration and pulsation for stable readings in active systems
• 316 stainless steel Bourdon tube and 304/316 stainless steel case for corrosion resistance
• 1 percent of scale accuracy across the full 0 to 30 psi range
• 3-1/2 inch analog dial for clear readability at working distance
• 1/4 inch NPT lower mount connection for direct inline installation
• IP54 and IP65/NEMA 4 rated for wet and wash-down environments
• Certified to CRN, PED, and RoHS standards

Compatibility

Designed as an OEM-style replacement or direct-install industrial pressure gauge for systems requiring a 1/4 inch NPT lower-mount connection and a 0 to 30 psi measurement range. Compatible with plumbing, HVAC hydronic, compressed air, and general industrial piping applications. Part of the ASHCROFT Series 1009 liquid-filled gauge line.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified industrial mechanic. Isolate and depressurize the system completely before installing or removing the gauge. Apply thread sealant or PTFE tape to the 1/4 inch NPT male threads per applicable plumbing or mechanical code. Do not use pipe wrenches directly on the gauge case; wrench flats on the gauge stem should be used to avoid case distortion.