waterproof sleeve is a pipe fitting used to protect pipes that pass through walls from damage. Its sealing mainly relies on sealing rings, which play a vital role in the production process of waterproof casing. Before use, check the waterproof casing rubber sealing ring to see if there are no splits, cracks, misalignments, mismatches, flash and other phenomena. The surface in contact with the rubber ring should be clean. The rubber ring on the wall-penetrating pipe should be straight and not twisted. The necessary pipe supports and piers should be set on the nearby building (building) wall to ensure circumferential clearance and casing during installation. The uniformity of the axis of the flange and flange cover, as well as the sealing performance and service life of the rubber sealing ring, the bolt fasteners should be set on the side that is easy to operate manually, and the bolts should be evenly symmetrical and low-tightening.
waterproof casing sealing ring eliminates the moving ring sealing ring, which greatly reduces the vibration of the moving ring caused by the vibration of the pump body or axial vibration, so that the moving ring is not greatly affected, which is usually called the floatation of the seal. Waterproof casing sealing ring cancels the influence of ordinary spring sealing ring, and the applicable medium and temperature are greatly expanded. Usually, ordinary mechanical sealing ring materials use organic compounds such as polytetrafluoroethylene rubber. These organic compounds are in some media and are different from the media. Chemical reactions occur throughout the body, at low and high temperatures, which will change its physical properties and harden the seal to fail. The bellows seal is not limited by the above factors. It is usually suitable for benzene, ketone, olefin, alkane , general oil, acid , alkali salt and other media, the temperature range can also be -250-400. Of course, this also requires strict selection of materials for welding and thermal maintenance.
