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Working principle and application course of Luoying rubber joint

Time: 03-29 󰃯 Reading times: 639 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: Rubber joint products have their special characteristics and characteristics, with the difference of single ball or double ball. In terms of its own structure, rubber joint products are made for the connection of pipes and the protection of pump and valve products. Rubber products have the characteristics of thermal expansion and cold contraction

Rubber joint Products have their special characteristics and characteristics, with the difference of single ball or double ball. In terms of its own structure, rubber joint products are made for pipe connection and protection of pump and valve products. Rubber products have the characteristics of thermal expansion and cold contraction. In rubber joint products, different rubber materials have different reflection on temperature, medium and working pressure. When axial compression or extension occurs, the ball itself can be allowed Within the scope of expansion and contraction, the pipeline shall be protected from vibration or offset, so as not to cause pipeline fracture or stop. When installing the anti pulling device in the special working environment, it can play a better effect.
If the structure is studied, the product is composed of inner and outer layer rubber, middle stressed frame house and two end steel ring, and is equipped with standard method half. It has the characteristics of high pressure resistance, vibration resistance and noise reduction, and obvious displacement compensation effect, which can play the role of vibration isolation and noise reduction and displacement compensation. This product is mainly used for water supply and drainage, compressors, ships, locomotives and other pipeline systems.
1. Select the appropriate model according to the working pressure, connection mode, medium and compensation amount of the pipeline, and select the number according to the requirements of noise reduction displacement
2. The normal applicable medium of flexible rubber joint is ordinary water with temperature of 0-60 ℃. In case of special medium such as oil, acid and alkali, high temperature and other corrosive and hard texture, rubber joint with special resistance material shall be selected, and it is not allowed to be used in series or in general.
3 when the pipeline displacement is greater than or equal to the large compensation of the joint, the number of joints should be increased to parallel the displacement. It is strictly forbidden to make the joint in the state of disturbed displacement and deviation in order to adjust the out of tolerance of the pipeline, and not to exceed the limit (expansion, displacement, deflection, etc.)
4. Flange connection of t911 / 15 flange shall be in accordance with GB.
5. When the pipeline medium is acid, alkali, oil, high temperature and other special materials, the joint with a gear higher than the pipeline working pressure should be selected.
6. After the rubber joint is subjected to pressure for the first time (such as installation and pressure test) or before it is put into use again after long-term shutdown, the bolts shall be re pressurized and tightened before putting into operation.
7. Installation Flexible rubber joint The screw of the bolt shall extend to the outside of the joint, and the bolt of each flange end face shall be repeatedly and evenly tightened according to the method of diagonal pressure to prevent pressure deviation. Standard wrench should be used to tighten the threaded joint evenly. Do not use the force adding rod to make the movable joint slip, slide and fracture. Moreover, regular inspection should be carried out to avoid loosening and causing disc detachment or water seepage.
8. When the instantaneous pressure of the pipeline is greater than the working pressure, the joint with a gear higher than the working pressure should be selected. (for example, when the instantaneous pressure of pipeline startup is more than 1.0MPa, the joint with working pressure of 1.6Mpa should be selected. When the instantaneous pressure is more than 1.6Mpa, 2.5MPa joint should be selected).
9. When the flexible rubber joint is used at the inlet and outlet of the water pump, it should be located at the side near the water pump, and the metal reducing joint should be installed between the water pump and the water pump, and it should be installed at the large diameter of the variable diameter.
10. For high-rise water supply or suspended water supply, the pipeline shall be fixed on the hanger, bracket or anchor frame, and the joint shall not bear the weight and axial force of the pipe itself, otherwise the joint shall be equipped with anti pulling device (the bearing force is greater than the axial force of the pipeline).