The GRIP-RZ Coupled pipe repair clamp can safely and reliably seal damaged pipes such as corrosion, mesh holes,cracks or leakages without pipe changing. New designed unitary sealing sleeve ensures complete sealing effect. Easy and quick installation completed by wrapping the clamp to target position, tightening all the bolt. Strong pressure bearing ability up to 8MPa, can be widely used in oil pipeline, chemistry industry, grid, mining field, gas pipeline. Suitable for pipes O.D φ26.9-φ812.8mm Progressive sealing effect If the pressure in the pipes rises, the contact pressure on the sealing lips also increase due to the flow through the pressure equalization channel