This manual provides instructions for installing, operating, and maintaining GB and GH Series Needle Valves for small-diameter piping systems. Make sure the piping line is contaminant-free and that your environment is suitable for the installation process before you begin. You will need a wrench to connect the Hy-Lok Tube Fitting and a welder for the Socket Weld End. Before attempting maintenance, ensure the valve line is turned off, depressurized, and drained of fluids.
After reviewing this manual, you will be able to:
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