Ashcroft 94335 Pressure Gauge 0-15 Psi 3.5 in Dial Npt

Product Description

The ASHCROFT 94335 is an analog industrial pressure gauge designed for monitoring system pressure in a wide range of plumbing, HVAC, and industrial piping applications. It features a 3.5-inch dial with a 0 to 15 psi range and delivers 1 percent of scale accuracy, making it suitable for low-pressure systems where precise readings matter. The stainless steel case is rated 304/316 grade and encloses a 316 stainless steel Bourdon tube for durability in demanding environments. A polycarbonate lens protects the dial face. The lower-mount, 0.25-inch NPT threaded connection suits standard pipe fittings and allows direct inline installation. Licensed plumbing and HVAC technicians are the typical installers.

This gauge is well-suited for residential and light commercial plumbing systems, hydronic heating loops, compressed air lines, and low-pressure gas monitoring where a 0 to 15 psi range is appropriate. The lower-mount NPT connection makes it a straightforward drop-in for panel boards, manifolds, and pipe risers. The dry, non-liquid-filled design keeps the gauge lightweight and maintenance-free in clean-media applications. Certifications including CRN, IP54, IP65/NEMA 4, PED, and RoHS extend its suitability to installations with environmental exposure or regulatory requirements.

Key Features

• 0 to 15 psi range with 1 percent of scale accuracy for reliable low-pressure monitoring
• 3.5-inch analog dial for easy reading at distance
• 316 stainless steel Bourdon tube resists corrosion in wet or aggressive media
• 304/316 stainless steel case rated IP54 and IP65/NEMA 4 for environmental protection
• Lower-mount 0.25-inch NPT connection for standard pipe and manifold fitment
• Polycarbonate lens protects dial face from impact and moisture
• Non-liquid-filled, dry gauge construction reduces weight and servicing requirements

Compatibility

Designed as an OEM-style industrial pressure gauge for low-pressure plumbing, HVAC, and process piping systems using standard 0.25-inch NPT lower-mount connections with a 0 to 15 psi operating range.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or HVAC technician. Isolate and depressurize the system fully before removing or installing any pressure gauge. Apply thread sealant or PTFE tape to the NPT threads per local code requirements and tighten to the fitting without over-stressing the case. Verify that system pressure does not exceed the 15 psi maximum rated range after returning the system to service.