Ashcroft 94332XLL Pressure Gauge 0-400 Psi 2.5in Mnpt

Product Description

The ASHCROFT 94332XLL is an industrial-grade analog pressure gauge built for demanding service environments. It features a 2.5-inch dial with a 0 to 400 psi range and a lower-mount 1/4-inch MNPT connection. The wetted parts are 316 stainless steel, and the case is 304/316 stainless steel, making it well suited for corrosive media and wet locations. Accuracy is rated at 1 percent of full scale. The polycarbonate lens protects the dial face without liquid fill, keeping the unit lightweight at 0.25 pounds. Licensed HVAC technicians, plumbers, and industrial service techs routinely spec this gauge for process, refrigeration, and fluid-system monitoring.

This gauge is designed for industrial pressure monitoring applications where stainless steel wetted parts are required to resist corrosion from process fluids, chemicals, or moisture. The lower-mount MNPT connection suits panel-mount and inline installations where the gauge threads directly into a tee, manifold, or port from below the dial. It is a no-fill unit, meaning there is no glycerin or silicone damping fluid, which makes it straightforward to handle, dispose of, and replace in the field. Typical installations include compressor outlets, pump discharge lines, water treatment systems, and HVAC refrigerant or hydronic circuits where a permanent pressure indication point is needed.

Key Features

• 316 stainless steel Bourdon tube and wetted parts for corrosion resistance
• 304/316 stainless steel case for durability in wet or outdoor locations
• 1 percent of full-scale accuracy across the 0 to 400 psi range
• No-fill design — no glycerin or liquid damping fluid to manage
• Polycarbonate lens resists impact and moisture intrusion
• Rated to IP54 and IP65/NEMA 4 for outdoor and washdown environments

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for industrial, HVAC, plumbing, and process-fluid systems requiring a 1/4-inch MNPT lower-mount connection and a 0 to 400 psi range.

Installation Notes

Installation is performed by a licensed plumber, HVAC technician, or qualified industrial mechanic. Depressurize and isolate the system fully before removing or installing any pressure gauge. Apply thread sealant tape or compound to the male threads per the applicable plumbing or process-piping code before threading the gauge into the port. Do not over-tighten; use a wrench on the gauge hex fitting only — do not apply torque through the dial body or case.