Why Not Learn The Way Of Install PP Compression Fitting?

• Posted by fitting tony May 19, 2020 - Filed in Arts & Culture - #two piece of ball valve pp compression fitting  - 1,402 views

   

  Step 1 Cut the Pipe Cut the end of the pipe, if necessary, using a tubing cutter. Open the jaws of the tubing cutter and fit it onto the pipe so the pipe rests squarely against the two flat rollers of the cutter. Tighten the cutter so the cutting wheel is snug against the pipe. Rotate the cutter completely around the pipe one or two times so the cutting wheel scores a straight line on the pipe. Rotate the cutter once or twice in the reverse direction. Tighten the tool slightly, and rotate once or twice in both directions again. Repeat the process until the cutting wheel cuts all the way through the pipe. A inexpensive tubing cutter easily cuts copper pipe.

  Step 2 Ream and Clean the Pipe Remove the sharp, ragged edge inside the end of the pipe, using a reaming tool (most pipe cutters include a triangle-shaped reamer that retracts into the body of the tool). Insert the reamer into the pipe and rotate it back on forth, making a few complete rotations, while applying pressure into the pipe. Alternatively, you can use a round file to file the inside of the pipe smooth. Use your finger to pull out any debris from inside the pipe. Clean the outside of the pipe with a rag; it must be clean, with no paint or other contaminants. If necessary, apply a cleaner or solvent to the rag to clean the pipe.

  Step 3 Install the Fitting Slip the compression nut from the pp compression fitting onto the pipe, then slip on the compression ring. Slide both pieces down so they are 1 inch or so from the end of the pipe. Fit the compression fitting onto the pipe (or fit the pipe into the fitting, as applicable) until the pipe stops inside the fitting. TIPS Apply pipe joint compound or thread-seal tape (also called Teflon tape) to the threads of the fitting, if desired. Compound or tape provide lubrication to the threads and can help prevent leaks, but valve manufacturers often do not specify using compound or tape with their compression fittings.

  Step 4 Tighten the Fitting Hold the fitting against the pipe, and slide the compression ring up against the fitting. Slide the nut over the ring and thread it onto the fitting until it is hand-tight. Be careful not to cross-thread the nut. Fit one wrench onto the body of the fitting and hold it so that the fitting doesn't move. Use another wrench to tighten the compression nut about one-half to three-quarters of a turn. Be careful not to overtighten the nut. Compression fittings come in many configurations, including elbow fittings and tees.

  Step 5 Check for Leaks Check the compression fitting for leaks after you've completed all of the other plumbing connections and turned on the water supply to the pipe. If the compression fitting leaks, use both wrenches to tighten the compression nut gently until the leak stops. If you can't get a leak to stop, you may have cross-threaded the compression nut, or the compression ring may not be seated properly against the fitting. Remove the nut and check the ring, then reinstall the nut. If the fitting or nut threads are damaged, replace the fitting.

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