Because the non-metallic compensator construction raw materials are basically flexible fabric raw materials, fixed immovable screw is on the one hand the masks cloth fixed immovable, on the other hand is the card tightening masks with sealing effect, so that the pipeline is not easy to cause the phenomenon of water leakage. When assembled, because the later screw twisted tight, the front screw will produce loosening, resulting in the long-lasting acid and water infiltration into the screw long to carry out corrosion, and then the screw thread corrosion off, not optimistic to reduce the use of the commodity period, and therefore assembled constantly twisted tight screw. In addition, non-metallic compensator in the operation of the link, due to surprise and other reasons will also spring up screw loose phenomenon, resulting in the pipeline leakage, the destruction of goods. Sometimes due to the fitness movement of the pipeline, the support rod rupture, immediately to will be hooked through the skin, so that it can not work properly in.
