Installation notes: 

1 before installation, three fixed between two flanges must be take off the screw and turn the nut to the top. When you pipe thermal expansion and contraction, so that the flanges slide freely in the screw. If corner Large, can also remove the Guide bar. 

2 when installing compensator cannot be stretched or compressed, try to keep it free (standard length). Flange mounted, bolt on to, and to keep a good PTFE Lines and flange, so as not to break or explode.