Zhengzhou sky pipe Sales Co. Contact: Zhang Tel: 0371-64030303 phone: 13598867200 QQ: 758305363 Website: http: //www.zzytgdxs.com/ Address: Industrial Park, Gongyi City, Henan Province, Nishimura Buried sleeve expansion joints Buried sleeve sleeve expansion joint sleeve compensation, also known as expansion joints, expansion joints sleeve, the sleeve expansion joints. Buried sleeve expansion joints, the use of advanced sealing structure and sealing materials for hot water, steam, oil media, by sliding movement of the sliding sleeve external sleeve, to compensate for thermal expansion. With a reasonable structure, safe and reliable, long life, no leakage, easy installation and maintenance, wide range of features. At the same time, easy piping design, easy installation and construction, reducing set a fixed bracket. Applications: It can be widely used in chemical, petroleum, thermal, metallurgical, urban central heating system and other pipe network, waste and high erection of piping. Nominal Diameter: DN80 ~ DN1000 (mm) Design pressure: 1.0 ~ 4.0 (Mpa) Design temperature: -40 ℃ ~ 250 ℃ Connection: flange / welding sealing materials: preparation of packing products, PTFE, rubber products , seal oil special sealant.