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25.07.2017

Pipeline Cleaning

The pipeline is the equipment consisting of the pipe, the pipe fitting and the valve, and is used for transporting gas, liquid, or fluid with solid particles. Usually, after being pressurized by blowe...
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  • Posted: 03/03/2016 08:45:00  Hits: 191
    The uneven wall thickness of steel pipes is mainly represented as uneven spirally wall thickness, uneven straight wall thickness and the ends are too thick or too thin, even the grinding technique is one of the important factors. The following are the reasons to cause the uneven wall thickness and corresponding measu...
  • Posted: 02/24/2016 16:41:47  Hits: 2681
    Seamless steel pipes are mainly used in oil pipeline and gas pipeline, but seldom used in oil pipelines with long-distance. Most long distance pipeline applied ERW pipes, SSAW pipes and LSAW pipes. Here are comparisons of technological features and performance of these pipes.    1. Electric Resistance W...
  • Posted: 01/12/2016 17:17:38  Hits: 205
    Generally, in terms of the surface treatment for stainless steel pipes, manufacturers have three methods, blenching treatment, polishing treatment and coloring treatment. However, it’s unavoidable to have some problems during the surface treatment, mainly are the following problems.   1. Defects of wel...
  • Posted: 01/08/2016 16:29:13  Hits: 176
    Currently, the worldwide manufactures are attach great importance to study and research of anti-corrosion to pipes, and many new materials and technologies are emerging. 1. Double epoxy (double FBE). This material was invented by an American company named OBRIEN. The material combined the corrosion resistance and ...
  • Posted: 12/25/2015 10:40:06  Hits: 189
    There are several methods of quenching the OCTG pipes, dipping, axial injection, laminar jet and laminar jet combined with axial injection. It will form the centrifugal force when quenching OCTG pipes and the centrifugal force will cause the deformation on pipes, which has serious influence on the quality and applica...
  • Posted: 12/16/2015 10:39:16  Hits: 173
    There are some features about sulfate electro galvanizing technology.   1. Optimization of sulfate galvanizing The most important advantage of sulfate galvanizing is that the current efficiency can up to 100%, and has a fast deposition rate which is incomparable to other galvanizing technique. Since the cry...
  • Posted: 12/03/2015 10:07:15  Hits: 208
    With the constant development of industrial technology, the industrial equipment also has been developed rapidly. As a newly developed heat exchange tube with high efficiency, the nodes heat exchange tube has replaced the traditional ones. This new heat exchange tube has some unique advantages.   1. High coe...
  • Posted: 11/27/2015 10:41:39  Hits: 213
    According to the applications, seamless steel pipe can be classified into several major types.   1. GB/T8162-1999: structure seamless steel pipes. This type of pipe mainly used in general structure and mechanical structure. The representative materials are: carbon steel, steel of NO.20 and 45, alloy steel of ...
  • Posted: 11/11/2015 11:00:22  Hits: 195
    This article introduces the extensive applications of ductile iron pipes in detail.    1. Fire protection Ductile iron pipes have three times of safety factor in design, not only can protect the whole fire protection system, the fire valves and fire hydrants are also completely made of ductile iron pi...
  • Posted: 11/05/2015 09:53:45  Hits: 250
    This article introduces several major types of welded pipes, including their applications and standards in detail.   1.Welded pipe for delivering low-voltage fluid (GB/T3092-1993). This kind of pipe also known as general welded pipe, or black pipe, which is mainly used for delivering low-voltage fluid, ...