Ashcroft 93750XLL Pressure Gauge 0-100 Psi 4.5 in Dial

Product Description

The ASHCROFT 93750XLL is a process industrial pressure gauge designed for accurate pressure monitoring in demanding commercial and industrial applications. It features a 4.5-inch analog dial with a 0 to 100 psi range and delivers 0.5% of scale accuracy, making it suitable for systems where reliable readings matter. The aluminum case houses stainless steel wetted parts, offering corrosion resistance against a wide range of process media. The gauge connects via a 1/4-inch MNPT rear entry fitting and mounts using the integrated rear flange. It is a non-liquid-filled unit with a glass lens. Licensed HVAC, plumbing, and industrial service technicians are the typical installers.

This gauge is used in residential and commercial process piping, HVAC systems, compressed air lines, water treatment, and general industrial pressure monitoring. The rear flange mount configuration allows panel or wall-mount installation where the dial faces outward for clear visibility. The 1/4-inch MNPT thread suits common pipe fittings widely found in plumbing and HVAC service environments. The stainless steel wetted parts make it appropriate for mildly corrosive or high-purity media where aluminum or brass wetted parts would be unsuitable.

Key Features

• 4.5-inch analog dial with 0 to 100 psi range for clear, readable pressure indication
• 0.5% of scale accuracy meets process-grade measurement requirements
• Stainless steel wetted parts resist corrosion from a wide range of process media
• Aluminum case reduces overall weight while maintaining structural integrity
• Glass lens provides durable, scratch-resistant dial protection
• Rated to IP66 and NEMA 4X for use in wet or washdown environments
• CRN certified for applicable Canadian pressure vessel and piping regulations

Compatibility

Designed as an OEM-style or direct-replacement process gauge for industrial and commercial piping systems requiring a 1/4-inch MNPT rear-entry connection with a rear flange mount configuration.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified service technician in accordance with applicable local codes and ASME B40.100 gauge installation guidelines. Isolate and depressurize the system completely before removing or installing any pressure gauge. Apply appropriate thread sealant to the MNPT connection and tighten to the fitting manufacturer's recommended engagement — do not over-torque the aluminum case. The rear flange must be secured to the mounting surface before pressurizing the system.