Ashcroft 94921XLL Pressure Gauge 0-100 Psi 3.5 in Dial

Product Description

The ASHCROFT 94921XLL is an industrial-grade analog pressure gauge built for demanding service environments. It features a 3.5-inch dial with a 0 to 100 psi range and a center back mount configuration using a 1/4-inch MNPT connection. The stainless steel case and stainless steel wetted parts make it well suited for corrosive media and wash-down applications. Accuracy is rated at 1 percent of scale, appropriate for process monitoring, HVAC hydronic systems, and general mechanical service. The no-fill design keeps the unit lightweight and straightforward to install or swap out.

This gauge is used in industrial and commercial settings where reliable pressure readings are needed on water, oil, air, or compatible fluid systems. The center back mount allows flush or panel installation where a front-entry connection is not practical. Typical installers include HVAC technicians, pipefitters, and industrial maintenance personnel working on compressed air lines, hydronic loops, boiler systems, or pump discharge points. The polycarbonate lens resists impact and provides clear dial visibility in the field.

Key Features

• 0 to 100 psi range with 1 percent of scale accuracy for reliable process monitoring
• 3.5-inch analog dial for easy at-a-glance readings
• 316 stainless steel Bourdon tube and stainless steel wetted parts for corrosion resistance
• 304/316 stainless steel case rated for wash-down and wet environments
• Center back mount with 1/4-inch MNPT connection for panel or inline installation
• Polycarbonate lens with no liquid fill for lightweight, low-maintenance operation
• Meets CRN, IP54, IP65/NEMA 4, PED, and RoHS standards

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for industrial, commercial, and mechanical systems requiring a center back mount, 1/4-inch MNPT connection, and a 0 to 100 psi measurement range.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or HVAC technician. Isolate and depressurize the system completely before removing any existing gauge or installing this unit. Apply thread sealant tape or compatible pipe dope to the MNPT threads per the fitting manufacturer's recommendation and applicable plumbing or mechanical codes. Do not over-torque the threaded connection, as this can damage the gauge socket or the mating fitting.