& does relevant recommendations: 【 metal compensator, flexible joints, pipe expansion 】 is gongyi city full state pipeline equipment co., LTD. The main business of our company has been made as a special equipment manufacturing license and ISO quality management system certification of qualified companies, the company management concept: the factory in order to "customer needs is our goal" principle, wholeheartedly for the customers with excellent products, reasonable prices, fast delivery cycle, professional technical support and perfect after-sales service. In the future, full state is full of confidence and hope, was determined in a more high quality brand and good service, sincere cooperation with customers at home and abroad, to do the northern area of the thermal compensation smoke duct equipment industry's first brand.



Rectangular wave metal corrugated pipe is introduced
Metal corrugated pipe with elastic rectangular double waves, in pressure, axial force, lateral force or under the action of bending moment can produce displacement. Rectangular wave metal corrugated pipe is widely used in instruments and meters, is primarily used as a pressure measuring instrument of measuring element, displacement or convert pressure into power. Metal corrugated pipe wall is thin, high sensitivity, measurement range for dozens to tens of mpa. In addition, the rectangular wave metal corrugated pipe can also be used for sealing isolation components, two medium separated or prevent harmful fluid into the measurement part of the equipment.

Rectangular wave metal corrugated pipe bursting test
Blasting test belongs to destructive test, blasting pressure is a rectangular wave metal corrugated pipe product safety technical indicators. Usually require metal corrugated pipe burst pressure shall not be less than 4 times the nominal pressure, allows for three times the nominal pressure of a specification, in ISO standard provisions shall not be less than 4 times the nominal pressure.
Experiment using pure water as pressure medium. Test unit pressure using electric pump or manual pump, using a pressure gauge or similar accuracy of pressure test equipment testing. Test, place the metal corrugated pipe sample straight, one end of the installation of exhaust valve plug, the other end and the pressure of the pump outlet pipe connection, the water injection of metal corrugated pipe sample, row ?

Rectangular wave metal corrugated pipe fatigue test
Fatigue life design according to the rectangular wave metal corrugated pipe failure types and causes of analysis can be seen that the plane stability of metal bellows, circumferential stability and corrosion resistance are related to its displacement and fatigue life. The fatigue life of low will result in metal bellows stability and corrosion resistant performance. According to the test and use of the experience, the fatigue life of metal bellows used in heating engineering should not be less than 1000 times.
Rectangular wave metal corrugated pipe failure was caused by external environment corrosion, therefore when design the structure of metal corrugated pipe, can be isolated from external corrosion medium and its contact. Metal corrugated tube in the outlet ring packing seal device ? with increased between the outlet pipe