Plumbing Accessories PPR Double Union Valve

Introduction

Plumbers favor double union valves for easy repair. This article details step-by-step operation and care methods.

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Open Valve Smoothly and Slowly
Hold the handle firmly. Turn it slowly to open and prevent pressure shock in connected appliances.

Avoid Overtightening During Closure
Turn the handle clockwise gently. Stop when resistance is firm; don't overtwist to avoid damaging internal parts.

Monitor for Vibration Noises
Listen for strange vibrations during use. If sounds occur, check pipe stability and water pressure.

Disconnect for Pipe Flushing
Turn off the water supply. Unscrew both unions to remove the valve before flushing or cleaning the pipeline.

Replace Gasket if Leaking
Remove the valve if leaks persist. Pull out the rubber ring and install a new one securely.

Clean Valve Threads Occasionally
Use a soft brush to remove dust from threads. Ensure no debris blocks union grooves before reassembly.

Rotate Handle Monthly
Operate the valve monthly to prevent corrosion. Regular use keeps the internal seat smooth and functional.

Protect Threads with Teflon Tape
Wrap thread ends with Teflon tape during reassembly. This adds seal strength and prevents water seepage.

Label Valve for Quick Access
Attach a plastic label beside the valve. Mark the purpose and installation date for future maintenance records.

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