Wika 50786571 Pressure Gauge 2 in Dial 1/4 in Npt Lower Mount

Product Description

The WIKA 50786571 is an analog pressure gauge designed for measuring both positive and negative pressure in a single instrument, with a compound range of 30 to 0 to 30 PSI. The 2-inch dial features a lower-mount 1/4-inch NPT connection, making it suitable for direct installation into process lines, manifolds, or equipment panels. The case is constructed from ABS plastic and wetted parts are brass, offering solid compatibility with a wide range of non-corrosive media. Accuracy is rated at 3-2-3 percent of scale, providing reliable readings across the full compound range. This gauge ships as a dry, no-fill unit. HVAC technicians, plumbers, and general mechanical contractors commonly install this type of gauge for pressure monitoring in low-to-medium pressure applications.

This compound pressure gauge is suited for residential and light commercial applications where both vacuum and positive pressure readings are required at a single measurement point. Typical installations include refrigeration service manifolds, HVAC equipment panels, pump systems, and plumbing pressure checks. The lower-mount configuration allows the gauge to sit flush against a panel or pipe fitting with the dial face oriented upward for easy reading. The compact 2-inch dial size fits standard cutouts and close-clearance mounting locations.

Key Features

• Compound range: 30 to 0 to 30 PSI for vacuum and positive pressure measurement
• 2-inch analog dial with 3-2-3 percent of scale accuracy
• Lower-mount 1/4-inch NPT connection for direct pipe or panel installation
• ABS plastic case for lightweight, corrosion-resistant housing
• Brass wetted parts compatible with a broad range of non-corrosive fluids and gases
• Dry, no-fill design requires no liquid dampening media

Compatibility

Designed as an OEM-style replacement or service gauge for systems using a standard 1/4-inch NPT lower-mount connection with a 2-inch dial format.

Installation Notes

Installation should be performed by a licensed HVAC technician, plumber, or qualified mechanical professional. Depressurize and isolate the system completely before removing an existing gauge or installing this unit. Apply appropriate thread sealant to the NPT threads per local plumbing or mechanical codes; do not overtighten, as ABS-housed gauges can crack if excessive torque is applied. Verify that the media in contact with wetted parts is compatible with brass before placing the gauge in service.