Wika 9744940 Pressure Gauge 0-200 Psi 2.5 in Dial Npt

Product Description

The WIKA 9744940 is an analog pressure gauge designed for monitoring system pressure in plumbing, HVAC, and industrial process applications. It features a 2.5-inch dial face with a 0 to 200 psi single-scale range, making it suitable for a wide range of low-to-medium pressure systems. The gauge uses a lower-mount 1/4-inch NPT connection, a stainless steel case rated 304 grade, and stainless steel wetted parts throughout. Accuracy is rated at plus or minus 2.5 percent of scale. No liquid fill is used in this configuration. Licensed plumbers, HVAC technicians, and pipefitters are the primary installers of this type of instrument.

This gauge is well suited for residential and light commercial plumbing systems, hydronic heating loops, compressed air lines, water supply lines, and general fluid process piping where corrosion resistance is a priority. The stainless steel wetted parts make it a practical choice for mildly corrosive media. The lower-mount NPT connection allows direct installation into a pipe tee, manifold port, or valve body without additional fittings in most standard configurations.

Key Features

• 0 to 200 psi single-scale analog dial with 2.5 percent of scale accuracy
• 2.5-inch dial diameter for clear readability in tight installation spaces
• 304 stainless steel case for corrosion resistance in wet or humid environments
• Stainless steel wetted parts compatible with water, mild chemicals, and compressed air
• Lower-mount 1/4-inch NPT connection for direct pipe or manifold installation
• No liquid fill construction simplifies handling and disposal

Compatibility

Designed as a direct-mount replacement or new-installation pressure gauge for systems using standard 1/4-inch NPT lower-mount gauge ports with a 0 to 200 psi operating range.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician. Depressurize and isolate the system completely before removing an existing gauge or threading in a new one. Apply an appropriate thread sealant or PTFE tape to the NPT threads per local plumbing code requirements. Do not overtighten the gauge body using the case as leverage; use a wrench only on the hex of the fitting to avoid stressing the bourdon tube or case connection.