? KRHD clamp flexible expansion joints, also known as off-type expansion joints, is a pipe connection, reliable, easy to install products. At low pressures, by elastic deformation of the sealing ring, to seal object; when the pressure is increased, by the medium acting on the sealing ring, play the role of self-sealing, and a gap between the pipe ends to compensate for pipe expansion due to heat cold contraction and resulting displacement and deflection. KRHD clamp flexible expansion joints is a pipeline connection products, reliable clamp flexible expansion joints performance, ease of installation, clamp flexible expansion joints unique self-sealing properties effectively prevent leakage, and left between the pipe ends gap to compensate for the displacement and deflection due to thermal expansion and contraction resulting from the pipeline.