What are the advantages of high pressure pipe repair clamp? Quickly install pipes with high pressure pipe repair clamp and corresponding pipe fittings. No welding is required during construction, no need to re-galvanize and re-assemble. The assembly efficiency is improved. The simple patch pliers are light in weight, have fewer bolts, are easy to assemble, and do not require special techniques. Safe, reliable, scientific and reasonable, moderate product structure design, unique C-shaped rubber sealing ring, to achieve triple sealing, to ensure the reliability of connection sealing.
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The installation and construction of safe high pressure pipe repair clamp and corresponding pipe fittings only need mechanical assembly, no welding and no open flame. Therefore, there is no welding slag to pollute the pipeline, which can ensure the safety of the construction site. Economical Due to the fast assembly, no special technology is required, the assembly repair rate is low, and the overall assembly cost is 30-50% lower than that of flanges. Small footprint High pressure pipe repair clamp connection occupies about 70% of the flange space, and due to the small number of fastening bolts and no directionality.
It is very suitable for construction in narrow space conditions. The maintenance is simple, the product quality is safe, safe and reliable. As long as it is assembled properly, the pipeline will pass the pressure test once and run safely. It does not require daily maintenance, and spare parts do not need to be replaced for decades. Applicable to a wide range of pipes, high pressure pipe repair clamp can be used to connect various seamless steel pipes, galvanized steel pipes, welded steel pipes, stainless steel pipes, copper pipes and other metal pipes. Flexible connection of pipes can be achieved. Pipes connected by flexible stainless steel clamps are a flexible system.
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Local industrial facility has a section of sprinkler piping that has a small leak (pinhole) and would like to use a water line repair clamp over it. The clamp is stainless steel, full circle with 6 or 8 bolts to tighten down. It is the same clamp used by the local water department to repair water mains. Has anyone ever allowed this type of repair other than temporary? What standard would apply for proper repair material in this application short of repalcing the entire length of piping. The system is approximately 20 year old and my concern would be what else is wrong with the piping that allows it to leak. Thanks
Re: Sprinkler piping repair
would require aboveground to be replaced.
what psi is the clamp rated to???
I did have to eat an nderground repair with a clamp, because I could not find anything thata does not allow it, may be the same with aboveground?????
is there anything in 13 that says,, not sure what NFPA 25 (5.2.2.1) says
Re: Sprinkler piping repair
I hope your happy; I had to take the wrap off my Fire Code book.
Inspector 102; are you the Fire Code Official? If not, I would turn the problem over to him.
"Section 901.7 Systems out of service (if it's leaking; it's out of service). Where a required fire protection system is out of service, the fire department and the Fire Code Official shall be notified immediately" (and the rest of the requirements are his/her problem)
I just love it when the Fire Marshall says that the Fire Codes are his; bless his heart.
Uncle Bob
Re: Sprinkler piping repair
102
Pipe that is 20 years old should not have pin hole leaks, especially if it is a wet system. UNLESS it has a problem with the water inside of the pipe. I would ask the building owner to check for MIC (Microbiological Influenced Corrosion) within the pipe. This web site will get you started.[urlhttp://www.firesprinkler.org/techservices/mic/index.html[/url]
Test kit for MIC is about $-. here is an example
http://www.firesprinkler.org/techservices/mic/articles/article3.html
I would let them repair the pipe temporarily with the clamp. BUT I would like to see the inside of the pipe to know what is going on. IF it is MIC treating it NOW could prevent the entire piping system from leaking.
If it is bad pipe, which we had a bunch of bad pipe from China about 15-20 years ago, this may be another problem.
Bottom line the pin hole leak is telling you something you need to find out what the problem is. You just do not want to put a band aid on the problem. It will only come back at you.
Have they done a 5 year Obstruction Investigation as required by NFPA 25, 08, section 14.2?? What did the last inspection indicate on the condition of the inside of the pipe??
Re: Sprinkler piping repair
For clairification purposes.
My original posting referred to the edition of NFPA 25 for what should be done when the pipe is inspected “free from leakage” as referenced by the IFC (T-901.6.1) only because it is still predominantly used as the adopted code presently not the , although the edition of IFC treats it the same.
I also agree with
InsEng with his investigation suggestions.
UB,
Your stirring the pot
I just love it when the Fire Marshall says that the Fire Codes are his; bless his heart.