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The basic skills of plumbers-wrapping "raw tape"

Views:517 Author:Site Editor Publish Time:2021-03-01 10:42:09 Orgin:Site

With the popularity of independent domestic heating in the north and south, more and more installation workers enter the heating field, including many workers who have not received professional plumbing technical training, and even some of them are seamlessly connected with plumbers in the decoration team. Although there are heating work certificates in China, there are few professional training institutions. This will cause many piping systems, even with good products, still can not achieve the best results, not to mention the phenomenon of running and dripping everywhere.

So in order to prevent dripping, we first need a high-quality "raw tape", and then we need a qualified plumber.

Pipes, valves, pumps, boilers and other equipment in the piping system require hydraulic seals when threaded connections are used. The commonly used sealing material is Teflon tape, which is often called "raw tape" in the market.


When wrapping tape on the external thread of the pipe, pay attention to the following points:

1. Most of the threads are positive buckles, that is, turn clockwise to tighten, and counterclockwise to loosen; therefore, when external thread winding tape is given, the following graphics are required to maintain the tape loop, and the tape is wound clockwise on the inside.

Why can't you wrap it counterclockwise? (This is a mistake that many installers make easily), because when the thread is rotated, the thread will loosen the sealing tape, making it impossible to seal.

2. Start winding from the second or third buckle of the external thread to avoid the tape squeezing and blocking or blocking the pipe, or falling into the pipe to form impurities.

3. If the tube is too close to the wall and there is not enough space, turn the tape counterclockwise to the pen, and then wind it clockwise to the external thread.

4. Do not use an open flame to burn the tape when using a steel wire or a brush for secondary sealing to remove the original tape, because Teflon will produce harmful gases when it burns, causing "Teflon cold".