Value Collection 115AL25V30 Pressure Gauge 30 Psi

Product Description

The VALUE COLLECTION 115AL25V30 is a liquid-filled analog pressure gauge designed for monitoring positive and vacuum pressure in plumbing, HVAC, and industrial service applications. The gauge features a 2.5-inch dial and reads from -30 inches Hg to 0 to 30 psi, making it suited for both low-pressure and compound measurement tasks. A glycerine and water fill dampens needle movement under pulsating or vibrating conditions. The stainless steel case provides corrosion resistance, and brass wetted parts offer reliable compatibility with common media. Licensed plumbers, HVAC technicians, and industrial maintenance professionals are the primary installers.

This gauge is configured for lower mount installation using a 1/4-inch NPT threaded connection. It is appropriate for residential and light commercial plumbing systems, hydronic heating circuits, refrigeration support lines, and general fluid pressure monitoring where a compact dial size and liquid fill are specified. The compound scale (-30 Hg to 30 psi) supports both pressure and vacuum readings from a single instrument, reducing the need for separate gauges in mixed-service panels or manifolds.

Key Features

• 2.5-inch analog dial for clear on-site readability
• Compound range: -30 inches Hg vacuum to 30 psi positive pressure
• Glycerine and water liquid fill reduces needle flutter in vibrating systems
• Stainless steel case for corrosion-resistant durability
• Brass wetted parts compatible with common plumbing and HVAC media
• Lower mount, 1/4-inch NPT connection for standard panel and inline installations
• Plus or minus 3-2-3 percent of scale accuracy across the full range

Compatibility

Designed as an OEM-style replacement or new-install gauge for residential and light commercial plumbing, hydronic, and HVAC systems requiring a lower-mount, 1/4-inch NPT, liquid-filled compound pressure gauge with a 2.5-inch dial.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local codes and ASME B40.100 gauge installation guidelines. Shut off system pressure and depressurize the line before removing any existing gauge or fitting. Apply thread sealant or PTFE tape to the NPT threads before installation — do not overtighten, as brass fittings are susceptible to damage. Verify the pressure range of the gauge is appropriate for the system before placing the line back in service.