Ashcroft 61379S02LLLV/30 Pressure Gauge 6 in 30-0-30 Psi

Product Description

The ASHCROFT 61379S02LLLV/30 is a compound pressure gauge designed for applications that require monitoring both positive and negative pressure in a single instrument. It features a 6-inch analog dial with a 30-0-30 psi range, allowing technicians to read vacuum and pressure without switching instruments. The aluminum case keeps weight low, while stainless steel wetted parts resist corrosion from a wide range of process media. Accuracy is rated at 0.5 percent of scale. The lower-mount, 1/4-inch threaded connection makes inline installation straightforward. Licensed HVAC technicians, plumbers, and mechanical contractors install this gauge in refrigeration, HVAC, and fluid system monitoring applications.

This gauge is suited for residential and light commercial mechanical systems where compound pressure readings are required. Common applications include chiller and refrigeration system pressure monitoring, hydronic system balancing, pump performance verification, and vacuum leak testing. The no-fill design means there is no silicone or glycerin fluid to manage, which simplifies maintenance in environments where fluid contamination is a concern. The 6-inch dial provides a large, easy-to-read face at typical service distances.

Key Features

• Compound 30-0-30 psi range reads both vacuum and positive pressure on a single dial
• 6-inch analog dial for clear readability at a distance
• Stainless steel wetted parts for broad media compatibility and corrosion resistance
• Aluminum case reduces overall instrument weight
• No-fill design eliminates fluid maintenance and contamination risk
• 0.5 percent of scale accuracy for reliable pressure readings
• Lower-mount 1/4-inch threaded connection for direct inline installation

Compatibility

Designed as an OEM-style replacement or new-installation gauge for mechanical systems requiring compound pressure measurement with a lower-mount 1/4-inch threaded port connection.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or pipefitters. Isolate and depressurize the system completely before removing or installing the gauge. Apply appropriate thread sealant to the 1/4-inch male threads per local plumbing or mechanical codes, and avoid overtightening, which can damage the gauge socket or process fitting. Verify the pressure range of the system does not exceed the gauge rating before returning the system to service.