松套伸缩接头性能特点：    
    松套伸缩接头是在吸收国外先进技术的基础上，结合我国国情严制生产的，产品结构合理，密封性能可靠，不需焊接，装卸方便，能补偿管道一定范围内的位移，错位和挠曲等特点。其工作原理是安装在管道上后，拧紧螺母，弹性密封圈在螺母，压盖的作用下，依靠相互间的斜度，紧压在管子外围起密封和连接作用。主要使用于输送水、油、气和颗料粉状介质管道的连接。
Features：
Base on oversea advanced technology and domestic market application experience,we produce our Sleeve Expansion Joint with following characteristic:
--Reasonable structure design
--Reliable sealing effect
--No welding required 
--Easy to install
--Displayment and deflection of piping system can be self-compensated 
Working principle of sleeve Expansion Joint are following:After the Sleeve Expansion Joint is installed on the pipe and its screw be tightened around the pipe,thus buils up the sealing effect.。