Henan Liwei Industry  Co., Ltd. is a professional manufacturer of water supply and drainage materials. Our main products include Single/Double Sphere Rubber Joint, expansion joint, Ball Joint, Flange, steel dismantling joint, Carbon Steel/Stainless Steel Metal Expansion Joints, Fabric Expansion Joints, valve parts, pipe parts, various kinds of stainless steel compensators, duct fabric compensators, advanced soft sealing gate valves and flange butterfly valve.

Flexible Waterproof  Sleeve is generally applied to the structure with requirement of vibration or water proof in the position, through which tube goes. On the one hand  it contributes to the mounting and dismounting of the pipes and seepage-proofing, on the other hand, it also protects the buildings avoiding the damage of water and shock.It is applied to the building which requires decreasing vibration and totally waterproofing at the pipe passing regions.

Flexible materials: bitumastic oakum, polystyrene board, polyvinyl chloride plastic plates.
Sealant: polysulfide sealant, polyurethane sealant.
If the wall is not made of concrete, the small area where the sleeve goes through should be concreted, and the concreted diameter should be 200mm more than the wing ring diameter, the sleeve should be fixed in the wall at one time.
The thickness of the concreted wall where sleeve goes through should not less than 300mm, otherwise some additional work should be done to thicken one side or two sides of the wall. The diameter of the thickened place should be 200mm more than the wing ring diameter.
The weight of sleeve is calculated by L=300, if the wall thickness is more than 300, it should be calculated by other methods.
The Flexible Waterproof Sleeve can be made according to customers 's requirements by standard of S312 or 02S4O4, please give clear indication of the external diameter and applicable wall thickness when ordering.