Ashcroft 94599XLL Pressure Gauge 0-100 Psi 3.5in Lower Mount

Product Description

The ASHCROFT 94599XLL is an industrial-grade analog pressure gauge designed for accurate pressure measurement in demanding commercial and industrial applications. It features a 3.5-inch dial with a 0 to 100 psi range and delivers 1% of scale accuracy. The gauge uses a Bourdon tube mechanism and connects via a 1/4-inch MNPT lower-mount fitting. The stainless steel case (grades 304 and 316) and polycarbonate lens protect internal components, while bronze wetted parts provide reliable service across a range of media. This is a dry, non-liquid-filled gauge suitable for general-purpose pressure monitoring.

The 94599XLL is suited for residential and commercial HVAC systems, plumbing test applications, compressed air lines, and general industrial piping where a durable, panel-ready pressure gauge is required. The lower-mount configuration positions the process connection at the bottom of the gauge, making it compatible with direct pipe-mount installations where the gauge face needs to be read at eye level from the front. Licensed tradespeople in HVAC, plumbing, and industrial maintenance will find this gauge a reliable fit for routine system monitoring and service.

Key Features

• 3.5-inch analog dial with 0 to 100 psi range for clear, easy reading at distance
• 1% of scale accuracy meets industrial measurement standards
• 316 stainless steel Bourdon tube and 304/316 stainless steel case for corrosion resistance
• Bronze wetted parts suitable for a broad range of non-corrosive process media
• Lower-mount 1/4-inch MNPT fitting for direct pipe installation
• Polycarbonate lens with IP54 and IP65/NEMA 4 ratings for dust and moisture protection
• Dry (no-fill) design simplifies installation and disposal

Compatibility

Designed as an OEM-style replacement or direct-install industrial pressure gauge for systems requiring a 1/4-inch MNPT lower-mount connection with a 3.5-inch dial and 0 to 100 psi range. Meets CRN, IP54, IP65/NEMA 4, PED, and RoHS standards. Part of the Ashcroft Series 1009 gauge line.

Installation Notes

Install and service this gauge only after isolating and depressurizing the system at the point of connection. Use appropriate thread sealant on the MNPT fitting and avoid over-tightening, which can damage the threaded socket or distort the Bourdon tube connection. Plumbers and HVAC technicians should follow applicable IPC and IFGC guidelines for pressure gauge installation on gas or fluid systems. Do not exceed the rated maximum pressure of 100 psi.