Heat-Shrinkable Pipeline Protection Products

Heat Shrinkable Sleeves covered 3LPE Heat Shrink Sleeves，2PE Heat Shrink Tape，3LPP Wrap Around Sleeve

HDD Heat Shrink Wrap Sleeves,Shrinkable Tape Closure Patch

As one of the requirements for Quality Control of proper shrinking of sleeve, the shrink sleeve backing shall have a built-in permanent change indicator. This shall be in the form of a special pattern on the backing. Prior to shrinking the pattern shall be clearly visible and feelable to the touch. Once the sleeve has been shrunk down properly, the pattern shall disappear, and the sleeve surface shall become completely smooth.

The corrosion coating shall consist of a high build epoxy applied to the steel surface, followed by a wrap-around heat shrinkable sleeve, and shall be suitable for an operating temperature not exceeding 80°C in wet conditions.

All of the Heat Shrink Sleeves application was done above ground. It means that the condition for the working were very good to apply and to inspect every surface of the coating. The heating of the surface was uniform. After application of the coating the pipes were buried to the depth of 1.5 m to the top of the 
pipe. The typical value of the commercial mastic heat shrinkable sleeve is about 200 kPa.