Ashcroft 631008S2LLLV/30 Pressure Gauge 2.5 in Dial

Product Description

The ASHCROFT 631008S2LLLV/30 is a compound pressure gauge designed to measure both positive and negative pressure across a range of 30 in-Hg vacuum to 0 to 30 psi. The 2.5-inch analog dial provides clear readability in the field, and the 3-2-3 percent of scale accuracy rating makes it suitable for demanding service environments. The stainless steel case and stainless steel wetted parts deliver solid corrosion resistance, making this gauge a reliable choice for systems that handle aggressive media. It is installed by licensed plumbers, HVAC technicians, and pipefitters in applications where durable, accurate pressure monitoring is required.

This gauge is suited for residential and commercial plumbing, HVAC refrigeration lines, compressed air systems, and industrial fluid process lines. The lower-mount (bottom-entry) configuration positions the 1/4-inch threaded connection at the base of the gauge, allowing direct inline or manifold mounting. The dry, no-fill design keeps weight low and eliminates filler fluid compatibility concerns. It weighs 0.25 pounds and installs into standard 1/4-inch NPT ports.

Key Features

• Compound pressure range: 30 in-Hg vacuum to 30 psi, displayed on a 2.5-inch analog dial
• 3-2-3 percent of scale accuracy for reliable field readings
• Stainless steel case and stainless steel wetted parts for corrosion resistance
• Lower-mount configuration with 1/4-inch threaded connection for direct inline or manifold installation
• Dry, no-fill design eliminates filler fluid compatibility issues and reduces weight
• Lightweight at 0.25 pounds, minimizing load on threaded connections

Compatibility

Designed as an OEM-style replacement or direct installation pressure gauge for systems with standard 1/4-inch NPT lower-mount gauge ports, including plumbing, HVAC, compressed air, and light industrial fluid process applications.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or pipefitter. Depressurize and isolate the system completely before removing or installing any pressure gauge. Apply thread sealant or PTFE tape to the male threads per local plumbing code requirements, and do not over-tighten, as excess torque can damage the gauge socket or case. Verify that the system pressure and media are within the rated range of this gauge before returning the system to service.