The sealing T-shaped rubber ring uses its elasticity to play a sealing role, and can usually be divided into two types: static sealing and dynamic sealing. In static sealing, when the sealing T-shaped rubber ring is installed in the sealing groove, its cross-section will be subject to certain compression deformation. In the case of no pressure, due to the good elasticity of the sealing T-shaped rubber ring, a certain pre-contact pressure is generated on the contact surface. When the sealing cavity is filled with pressure oil, under the action of pressure, the sealing T-shaped rubber ring moves to one side of the groove to close the sealing gap to ensure that the sealing part is sealed without leakage.

In dynamic sealing, in addition to the above-mentioned static sealing function, the sealing T-shaped rubber ring also forms a solid boundary oil film between the seal and the reciprocating shaft to play a sealing role. In general, with the increase of the reciprocating times of the shaft, the liquid trapped outside will increase, and finally form oil droplets and fall from the shaft. This situation is called normal leakage of the dynamic sealing device. At the same time, carefully check the surface quality of the apron, only if it is confirmed that there are no small holes, protrusions, grooves and other defects on the surface.

Connection of rubber sealing T-shaped rubber ring: Before installation, check the quality of pipe fittings and rubber sealing T-shaped rubber ring, clean the dirt on the socket and socket, and then install the T-shaped rubber ring in the groove of the socket without twisting , The special-shaped rubber ring should be installed correctly and not reversed. The insertion length of the pipe end should allow for the expansion and contraction caused by the temperature difference, and its value should be determined according to the closed temperature difference during construction. After the insertion depth is determined, the insertion depth marking line should be drawn on the pipe end.

Apply lubricant to the T-shaped rubber ring and the insertion part of the socket. The lubricant must be non-toxic, odorless, and will not breed bacteria like soap or detergent. It is strictly forbidden to use butter, and it has no damage to the waterproof casing and rubber ring. Insert the socket into the socket, align it with the axis, and use a special tension tool such as a wire tensioner to insert it evenly once to the mark. When it is difficult to insert, check whether the T-shaped rubber ring is placed in place. Use a feeler gauge to check whether the position of the T-shaped rubber ring is correct along the circumference of the pipe along the interface gap.