Imperial 425-CB Compound Gauge Refrigeration

Product Description

The IMPERIAL 425-CB is a compound gauge designed for use in HVAC and refrigeration service work. A compound gauge reads both positive pressure and vacuum on a single dial, making it a standard instrument for system diagnosis, evacuation, and charging procedures. The 425-CB carries an accuracy rating of plus or minus 2 to 3 percent, which meets typical field-service requirements for refrigerant system work. It is handled and installed by licensed HVAC technicians and refrigeration mechanics performing routine maintenance or equipment commissioning.

This gauge is suited for residential and light commercial refrigeration and air conditioning systems. It is typically used as part of a manifold gauge set or as a standalone replacement gauge when an existing gauge is damaged or out of calibration. The compact form factor and standard accuracy specification make it appropriate for general-purpose refrigerant service across a range of system types.

Key Features

• Compound scale reads both positive pressure and vacuum on a single dial
• Accuracy rated at plus or minus 2 to 3 percent for reliable field readings
• Packaged quantity of one gauge per unit, suitable for individual replacement
• Lightweight at 0.3 pounds for easy handling during service calls

Compatibility

Designed as a general-purpose compound gauge for use in HVAC and refrigeration manifold service applications. Verify connection size and pressure range against the specific manifold set or system before installation.

Installation Notes

Installation and use of compound gauges on refrigerant systems should be performed by EPA Section 608 certified technicians using certified refrigerant handling equipment. Always recover refrigerant before opening a system and verify the gauge pressure range is appropriate for the refrigerant type being serviced. Handle gauge connections carefully to avoid cross-threading, and inspect the gauge face and bourdon tube for damage before use.