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What is hot tapping and line stopping

Hot tapping which is also commonly known as the wet tapping is a way to tap into water line when it is under pressure and add an additional line, drain the system or add a Thermo well or Sensor. http://transasia-pts.com/

What is hot tapping and line

What is hot tapping and line stopping? Hot tapping which is also commonly known as the wet tapping is a way to tap into water line when it is under pressure and add an additional line, drain the system or add a Thermo well or Sensor. You need to place a hot tap service saddle or sleeve onto the line. Then you need to ass a valve and test the connection under pressure with a hydrostatic pump. Until the cutter and the retention pilot are down and are touching the pipe you need to place the hot tap machine on to the valve which is through a tight packing gland. Afterward then manually drill the pipe or by using electric or air driven unit cut the hole in the pipe. The retention pipe grabs the cut out coupon so it does not fall down in the pipe where it might otherwise cause a problem in the line. Then you can retract the cutter and pilot up into the hot tap machine, close the valve properly and have completed the hot tap. When you cannot stop the flow in a line and need to do some kind of repair without draining the system or causing a long shut down of water, a line stop works just works fine. Line stopping equipment is just like hot tapping as in this you will be tapping into a live line which is under pressure. In this case, you will remove the hot tap machine and place a line stop machine onto the valve. A line stopping equipment Sharjah, UAE has rubber bladders that act like a plug which will expand as soon as they are lowered down the pipes. Once the flow gets stopped the repair can be easily performed. When you have completed the job the line stop machine is retracted, removed and shutting the valve off. A plug location tool is located on the valve and screws the plug down into the outlet. Now it is safe to remove the plug setting tool, remove the valve and replace the cap your job is completed. The main advantage of line stop is: • It reduces the cost considerably as compared to the traditional methods • Saves the time which is generally wasted in repair and replacement services • Eliminate the fallout of the sediments and pipe damage which can be there due to the depressurization • Protects water flow during an emergency and operational service