Ashcroft 94240XLL Pressure Gauge 0-1500 Psi 3.5 in Dial

Product Description

The ASHCROFT 94240XLL is an industrial-grade analog pressure gauge built for demanding trade and process applications. It features a 3.5-inch dial face with a 0 to 1500 psi range and delivers 1% of scale accuracy, making it suitable for systems where reliable pressure readings are critical. The wetted parts and Bourdon tube are constructed from 316 stainless steel, while the case is 304/316 stainless steel, providing corrosion resistance in harsh or wet environments. The lens is polycarbonate for impact and moisture resistance. This gauge is a non-liquid-filled unit with a lower-mount, 0.25-inch MNPT connection. Licensed plumbers, HVAC technicians, and industrial pipefitters routinely specify this type of instrument for system monitoring and commissioning tasks.

The 94240XLL is designed for industrial pressure monitoring in a wide range of applications including HVAC systems, compressed air lines, hydraulic circuits, and process piping. Its lower-mount configuration positions the connection at the 6 o-clock position, making it suitable for panel-mount or direct pipe installations where the gauge face must be readable from the front. The all-stainless wetted parts make it appropriate for mildly corrosive media such as water, oils, or light chemicals. This gauge is a dry unit with no liquid fill, which keeps it compatible with environments where ambient vibration is not a primary concern.

Key Features

• 0 to 1500 psi pressure range with analog dial display
• 1% of full-scale accuracy for reliable process monitoring
• 316 stainless steel Bourdon tube and wetted parts for corrosion resistance
• 304/316 stainless steel case construction
• Polycarbonate lens resists impact and moisture ingress
• Lower-mount 0.25-inch MNPT connection for direct pipe or panel installation
• Certified to CRN, IP54, IP65/NEMA 4, PED, and RoHS standards

Compatibility

Designed as an OEM-style industrial pressure gauge replacement or new installation fitting for systems with 0.25-inch MNPT lower-mount ports operating within a 0 to 1500 psi range.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician in accordance with applicable local codes and the system manufacturer's requirements. Isolate and fully depressurize the system before removing any existing gauge or installing this unit. Apply thread sealant or PTFE tape to the MNPT threads and tighten to the fitting using a wrench on the gauge's hex fitting — do not apply torque to the gauge case or dial. For high-vibration applications, consider a liquid-filled gauge variant to reduce pointer flutter.