Groove Tube (grooved fittings) is a new type of pipe connection fittings, also called clamp connections, has many advantages. It is based on the automatic sprinkler system design specifications proposed pipeline connection system should be grooved or threaded fittings, flanges; system pipe diameter equal to or greater than 100mm should be segmented flange or groove type connecting piece. Groove Tube connection technology, also known as clamp connection technology, has become the most important technology currently liquid, gas pipe connections, although the technology development in the country later than other countries, but because of its advanced technology, soon to be domestic market reception. Since 1998, research and development, through the development and application of a few short years, has gradually replaced the two traditional pipe connection flanges and welding. Not only technically more mature markets generally recognized, and has been actively guide the national regulations and policies. Application Groove Tube connection technology, so that the pipe connection process becomes complicated simple, fast and convenient. The pipe connection technology a major step forward. Produce pipe trench, making the industrial production more convenient. Sources Weifang Long-Casting Co. http://www.longyuguanjian.com