Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, ventilation engineering tin Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air-conditioning duct installation and other train service. The company has experienced professional and technical personnel, a total of flange Productions, specializing in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. Installation of air conditioning refrigeration and air-conditioning supply hot water to the top of the riser pipe vertical and focused on a few pipe shafts, therefore, should be carried out before the construction drawings on paper loft, in order to complete each step of the installation (pipeline corrosion, pipeline Test and pipeline insulation and other processes), but also for future owners to create conditions for maintenance and management. Inner shaft riser installation should be positioned at the wellhead located steel supports, upper and lower unity hanging wire installation card holder, install branch pipe line should be drawn, and prefabricated branch pipe laid in a predetermined position, Shengzhou total of flange plate, find the right location with the hook after nailing. Stand pipes should be accounted for and re-design, and at the time of the civil professional formwork, a total of flange angle code, the embedded parts laying ready. Since the air conditioning chilled water riser length is longer, in order to ensure the safe operation of the system, according to design requirements set expansion joints in the pipe shaft and with fixed bracket. Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, ventilation engineering tin Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air-conditioning duct installation and other train service. The company has experienced professional and technical personnel, specialized in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. After the duct system is installed, the system should be closely category test, the wind strength should be able to meet without cracking at the seams at 1.5 times the working pressure. Rectangular duct allows air leakage should meet the regulatory requirements. Tightness test under low pressure in the duct system process guaranteed under the premise of using leaked assay. When the test failed, the sampling rate should be required to do the air leakage test; tightness test pressure duct system after the light leakage inspection, use special air leakage air leakage tester to do the sampling; high pressure duct system tightness tests were performed amount of air leakage test to be done. Flange plate machining | Hangzhou Xingda ventilation (certified) | Shengzhou flange plate supplied by Hangzhou Xingda ventilation equipment. Hangzhou Xingda ventilation equipment (www.tz1288.com/shop/index_6525.html) is a leader in Hangzhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Xingda ventilation in leadership with the staff warmly welcome all inquiries negotiations to create a better future Xingda ventilation.