... called flexible rubber connector,shock absorber, pipeline shock absorber, damper, or soft connector etc.This product is used as soft joint for ... the sphere.4. If used at overhead station, need to use flexible support, tight the bolt diagonally during installation.5. If ... if use other standard, need to notice again. Working pressure grade is 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa. flexible rubber expansion ...