Wika 9699142 Pressure Gauge 0-300 Psi 4 in Dial Lower Npt

Product Description

The WIKA 9699142 is a liquid-filled industrial pressure gauge designed for accurate pressure monitoring in gas and liquid systems. It features a 4-inch analog dial with a 0 to 300 psi range and delivers 1 percent of full-scale accuracy. The 304 stainless steel case and copper alloy wetted parts provide durability in demanding environments. A polycarbonate lens protects the dial face from impact and moisture. The liquid fill dampens pointer vibration, making it suitable for systems with pressure fluctuations or pulsation. Licensed HVAC technicians, plumbers, and industrial service professionals commonly install this gauge in piping, refrigeration, and mechanical systems.

This gauge fits lower-mount installations using a 1/4-inch NPT threaded connection. The single-scale analog dial is straightforward to read in the field. It is appropriate for both residential and light commercial applications involving gaseous or liquid media. Typical installation scenarios include monitoring supply-line pressure in plumbing systems, compressed air lines, hydraulic circuits, and HVAC refrigerant or water-side piping where a direct-mount gauge is required at the point of measurement.

Key Features

• Liquid-filled design dampens needle vibration for stable readings under pulsating pressure
• 1 percent of full-scale accuracy across the 0 to 300 psi range
• 304 stainless steel case resists corrosion in wet or outdoor service environments
• Copper alloy wetted parts rated for gaseous and liquid media
• 4-inch analog dial for easy visual reading at a distance
• Polycarbonate lens provides impact and moisture resistance

Compatibility

Designed as an OEM-style direct-mount pressure gauge for industrial, HVAC, plumbing, and compressed-air systems requiring a 1/4-inch NPT lower-mount connection and a 0 to 300 psi measurement range. Suitable for use with gaseous and liquid media.

Installation Notes

Installation should be performed by a qualified plumber, pipefitter, or HVAC technician in accordance with applicable local codes and ASME B40.100 gauge installation guidelines. Isolate and depressurize the system completely before installing or removing the gauge. Apply thread sealant or PTFE tape to the NPT threads and hand-tighten before using a wrench; avoid over-tightening, which can crack the gauge body or distort the socket. Do not use this gauge to measure pressure beyond its rated maximum of 300 psi.