- You place a hot tap service saddle or sleeve onto the line. You add a valve and test the connection under pressure with a hydrostatic pump. Then you place the hot tap machine onto the value through a water tight packing gland, open the valve and lower the cutter and retention pilot down until it touches the pipe.
- Flexible Tap Saddles. The faster & less costly way to make sewer main connections. One Fernco Saddle will fit and 6” and larger sewer mains. Available for all 4” or 6” plastic or cast iron drain pipe inlets in tee or wye configurations.
Self Cutting Tap For Plastic Pipes
Self Cutting Tap For Plastic Pipe Sizes
Easily add a line to your existing PVC/ABS pipe by installing a Flo-Tap Saddle! This ingenious design cuts work time in half: no need to shut off water, cut into the pipe to add a tee, or even worry about cleaning up - the Flo-Tap Saddle.
Blunt nose and flat ended Self-tapping screws require a pilot hole slightly smaller than the screw diameter to be created before they can be driven into the material with a screwdriver. Pointed nose self-tapping screws do not require a pilot hole. The action of driving the screw in will result in the self-tapping screw cutting a thread into the material and securing the materials together. Self-tapping screws are typically used to secure wood, plastic, metal and brick together.
There are two types of self-tapping screws, thread-forming and thread-cutting.
|Thread Forming||Thread Tapping|
Thread-forming: Before you can use these screws you will need to drill a pilot hole as the screw itself does not contain a pointed tip. Thread-forming screws are usually used to join plastic materials together. Due to their design they typically grip material more tightly. Care should be taken as there is a risk of over-tightening the screw, which can result in joined materials breaking from the pressure.
Self Cutting Tap For Plastic Pipe Clamps
Thread-Tapping: These screws do not require a pilot hole but one can be drilled to make fastening easier. Remember to make the pilot hole smaller than the diameter of the thread tapping screw. Thread-tapping screws remove material and create a path for the screw. The drawbacks to using this type of screw is when they are removed it can result in stripped threads. If you experience stripped threads you should use a larger thread-tapping screw when reattachment is made.