Http://11 points to everyone about the rubber joint installation instructions!


1, must according to the pipeline work pressure, the connection way, the medium and the compensation quantity selects the suitable model, its quantity chooses according to the noise reduction displacement request.
2. When the pipeline generates instantaneous pressure and is greater than the working pressure, a joint higher than the working pressure should be selected. (For example: When the pipeline starting pressure is more than 1.0MPa, a joint of 1.6MPa should be used. For an instantaneous pressure>1.6MPa, a 2.5MPa joint should be used).
3, when the pipeline medium is acid and alkali, oil, high temperature and other special materials, it should choose a joint higher than the working pressure of the pipeline.
4. The flange connecting the rubber joints should be a valve flange or a flange complying with GB/T9115.1(RF).
5. The normal medium for flexible rubber joints is ordinary water with a temperature of 0-60°C. Special mediums such as oil, acid and alkali, high temperature, and other corrosive and hard textures should be used. Rubber joints must not be blindly used or common.
6. The flexible rubber joints used in the water pump import and export should be located on the side of the near water pump. Metal reducer joints should be installed between the water pump and the water pump, and they should be installed at large diameters of the adjustable diameter.
7. When the pipeline displacement ≥ the maximum compensation amount of the joint, the number of joints should be increased to parallel displacement. It is forbidden to adjust the pipe's overshoot to make the joints at the limit of the disturbance displacement and deviation, and the limit can't be exceeded. , displacement, deflection, etc.).
8, high-level water supply or suspended water supply, piping should be fixed on the hanger, bracket or anchor frame, and can not let the connector bear the weight of the pipe itself and the axial force, otherwise the joint should be equipped with anti-pull device (the tolerance must be greater than the pipeline Axial force).
9. When installing the rubber joints, the bolts of the bolts shall extend toward the outside of the joints. The bolts on the end faces of each flange shall be repeatedly tightened evenly by means of diagonal compression to prevent pressure deviation. Silk joints should be tightened with standard wrenches. Do not use force on the booster rods to make the joint slip, slippery, and broken, and check regularly to avoid loosening or seepage.
10. After the rubber joint has been subjected to pressure (such as installation pressure test) for the first time or after long-term deactivation, the rubber joint shall be tightened and then put into operation again.
11, the use of or storage of rubber joints, should avoid high temperature, ozone, oil and acid-base environment. The sun shade, rain and wind erosion shall be forbidden in the pipes used outdoors or in the wind. It is strictly forbidden to paint on the surface of the joint and to insulate the insulation material. Due to aging problems in rubber products, they should be promptly checked and replaced.


Solid mainly produces flexible rubber joint series, stainless steel bellows compensator series, duct fabric compensator series, pipe expansion joint series products, single ball rubber joints, double ball rubber joints, different diameter rubber joints, elbow rubber joints , and other products. Electricity