Ashcroft 94164XLL Pressure Gauge 4.5 in Dial Rear Flange

Product Description

The ASHCROFT 94164XLL is an analog pressure gauge built for accurate pressure monitoring in industrial, mechanical, and process applications. It features a 4.5-inch dial for easy readout at a distance, a rear flange mount for panel or bulkhead installation, and a 0.25-inch threaded connection for standard line attachment. The thermoplastic case keeps weight down while providing adequate protection in typical service environments. Accuracy is rated at 0.5 percent of scale, meeting the demands of most process and mechanical monitoring tasks. This gauge is not liquid-filled, making it suitable for dry, non-pulsating service conditions. HVAC technicians, plumbers, and mechanical contractors typically install this type of instrument.

The 94164XLL covers a pressure range of 30 to 0 units on its analog dial, which indicates vacuum or compound service. The rear flange mount design allows flush or near-flush panel mounting, keeping the face accessible while the body is secured from behind. The 4.5-inch dial size is well suited for installations where the gauge is read from several feet away, such as mechanical rooms, equipment panels, or service boards. No liquid fill means installation is straightforward without concerns about filler fluid compatibility or leakage during service.

Key Features

• 4.5-inch analog dial for clear readout at distance
• Rear flange mount design for panel or bulkhead installation
• 0.25-inch threaded connection for standard line hookup
• 0.5 percent of scale accuracy for reliable pressure indication
• Thermoplastic case construction keeps overall weight low
• Dry, no-fill design simplifies installation and service

Compatibility

Designed as an OEM-style replacement or new-installation pressure gauge for residential and commercial mechanical systems requiring a rear-flange-mount analog gauge with a 0.25-inch thread connection and 4.5-inch dial.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified mechanical contractor. Isolate and depressurize the line completely before removing or installing any pressure gauge. Apply thread sealant appropriate for the media being measured and hand-tighten before applying tool torque to avoid case stress. Verify the pressure range of the gauge matches the system operating range before placing into service.