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Online Leak sealing

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leak-repair Leak Sealing is a method of providing safe, controlled onsite and online leak repairs for any leaking process. Leak sealing service employs a custom-designed leak clamp to contain the leak section and injection of a suitable sealant into the clamp to stop the leak. Leak sealing is especially useful in stopping leaks in high temperature and pressure applications.
Online leak sealing Services, Inc., provides nondestructive, on site, on stream leak repair services for process, steam, water, or air leaks. These repair services are made at temperatures ranging from cryogenic to 1700oF, and pressures from vacuum to 6000 psig. Our goal is to extend the life of your plant components. 'Repair rather than replace' enables you to avoid the unnecessary re-manufacturing and replacement of equipment
While most leak sealing repair methods will not be able to withstand high pressures and temperatures and so may require a shutdown in a system, Online leak sealing method has the technological capability to perform leak sealing services ranging from -180 to 700 degrees centigrade at 240 Bar on line.
The following is a list of leak types commonly needing leak sealing solutions that could be sealed on line:
  • Flange Leak Sealing

  • Almost all flanges, being made to standard sizes can be treated by using a clamp which could be installed under pressure. The method only varies depending on the size of the gaps and the pressures and temperatures involved. The procedure however remains basically the inserting of a two piece clamp and sealing the gaps.
    Depending also on the leak size and provided that pressures involved are not high, a wire wrap could be done as a temporary stop gap to the leak.

  • Valve Gland Packing

  • Leaking valve gland packing is the most common of leaks and it could be repacked without isolating the valve packing. It could be done economically and could be repaired online. Most common leak sealing repairs are done for most processes including air, chemical, water, condensates, vacuum, steam (superheated and saturated) and hydrocarbons.
  • Leak Sealing for Line Kills and Valve Bypass

  • These are the usual solutions applied to immediately stop leaking valve seats. As this kind of leak is usually caused by a valve seat that does not seat properly, the seat of the valve is injected with the leak sealing agent. Line bypass is simply isolating that part of the system if that is required.

  • Elbow and Tee Joints Leak Sealing

  • Elbow joints whether it is in the 45 degree or a 90 degree angle, short radius or long radius could unexpectedly require leak sealing when subjected for a protracted period from the points where it had been joined due to failing welded parts and couplings.

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  • Weld Seam Leaks and Casting Pinhole Leak Sealing

  • Weld seam casting pinhole leaks are common types of leaks that starts rather very small but could rapidly need leak sealing before the problem grow worse. Typical remedy is to use a streamlined enclosure for leak sealing. The enclosures are pre manufactured according to typical pipe sizes. The enclosures could easily be inserted into the leaking portion and injected with leak sealing agent. By simply changing the inserts, the enclosures also be used in T shapes for Tee Joints, 90 degrees and the single bore application.

  • Leak Sealing for Exchanger Leakage

  • Sometimes it could happen that heat exchangers develop leaks even during installation. One of the more common causes of early leakage is when bolts are prematurely tightened when a gasket is not yet positioned properly. The composition gaskets also have the tendency to become brittle and dry. If for any reason the heat exchanger is to be dismantled it will be wise to check all gaskets thoroughly for leak sealing. Another cause for leak is that gaskets in the heat exchanger are usually made of metal or at least jacketed in metal. During early contact as the heat exchanger is sealed, the gasket and the metal are compressed where the initial sizes are matched. With use though, the gaskets hardens and creates imperfect matches resulting in breaks that require leak sealing. For whatever reason, It is always our practice to use a new gasket so that effective leak sealing is on when the heat exchanger is reused.

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