Wika 9318186 Pressure Gauge 0-160 Psi 2.5 in Dial Npt Back

Product Description

The WIKA 9318186 is a glycerine-filled industrial pressure gauge with a 2.5-inch analog dial, rated for 0 to 160 psi. The brass case and copper alloy wetted parts make it well suited for general industrial service, HVAC, and plumbing applications where vibration or pulsation could affect readability on a dry gauge. The glycerine fill dampens needle movement and protects internal components in demanding environments. Accuracy is 1.5% of scale, which meets the requirements for most commercial and industrial monitoring installations. The 1/4-inch NPT back-mount connection allows direct installation into panel-mounted or piped configurations.

This gauge is a standard choice for trade professionals installing or servicing hydronic heating systems, compressed air lines, water supply systems, and light industrial process piping. The back-mount NPT configuration suits panel installations and equipment where a flush or rear-ported connection is required. The acrylic lens provides clear dial visibility in field conditions. Licensed plumbers, HVAC technicians, and pipefitters are the typical installers for this type of gauge.

Key Features

• Glycerine-filled case reduces needle flutter caused by vibration or pressure pulsation
• 2.5-inch analog dial with single scale reading 0 to 160 psi
• 1/4-inch NPT back-mount connection for panel or direct-pipe installation
• Brass case construction for corrosion resistance in typical service environments
• Copper alloy wetted parts compatible with water, air, and many common process fluids
• Acrylic lens for clear, durable dial visibility
• 1.5% of scale accuracy meets standard industrial monitoring requirements

Compatibility

Designed as an industrial-grade replacement or new-install pressure gauge for systems with a 1/4-inch NPT back-mount port operating within the 0 to 160 psi range.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or pipefitter. Isolate and depressurize the system completely before removing an existing gauge or installing a new one. Apply thread sealant or PTFE tape to the NPT threads per local plumbing code requirements, and do not overtighten, as brass fittings can be damaged by excessive torque. Glycerine-filled gauges should be mounted in orientations that keep the fill fluid in contact with the sensing element — consult the manufacturer documentation for acceptable mounting angles.