Ashcroft 96257 Pressure Gauge 4.5 in 0-100 Psi Rear Flange

Product Description

The ASHCROFT 96257 is a process industrial pressure gauge designed for demanding commercial and industrial fluid system applications. It features a 4.5-inch analog dial with a 0 to 100 psi range and delivers 0.5 percent of scale accuracy, making it suitable for applications where reliable pressure monitoring is critical. The thermoplastic case resists corrosion and meets IP66/NEMA 4X environmental ratings for protection against dust ingress and water jets. Connection is made via a 0.5-inch MNPT rear-entry fitting, and the rear flange mount simplifies panel or wall installations. Licensed HVAC technicians, plumbers, and industrial instrumentation professionals are the typical installers.

This gauge is suited for process piping, industrial fluid systems, and mechanical equipment rooms where a durable, panel-mountable pressure instrument is required. The rear flange mount configuration is commonly used when the gauge face must sit flush against a panel or bracket surface. The no-fill, glass-lens design keeps the dial readable without the maintenance concerns associated with liquid-filled gauges. CRN certification supports use in Canadian pressure vessel and piping applications where provincial registration is required.

Key Features

• 4.5-inch analog dial with 0 to 100 psi pressure range
• 0.5 percent of scale accuracy for reliable process monitoring
• Thermoplastic case rated IP66/NEMA 4X for harsh environments
• Rear flange mount for clean panel or bracket installations
• 0.5-inch MNPT rear connection for standard threaded piping
• CRN certified and IP66/NEMA 4X compliant
• No-fill design with glass lens for low-maintenance operation

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for process industrial piping and equipment requiring a 4.5-inch dial, rear flange mount, and 0.5-inch MNPT rear connection rated to 100 psi.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified instrumentation technician in accordance with applicable local mechanical codes. Depressurize and isolate the system completely before removing any existing gauge or making new connections. Apply thread sealant appropriate for the process fluid to the MNPT threads before installation. Do not overtighten the connection fitting, as thermoplastic gauge bodies can be damaged by excessive torque.