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What should be paid attention to when installing rubber joint

Time: 05-26 󰃯 Reading times: 671 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: Rubber joint is common in the pipeline, because of its high elasticity, high air tightness, medium resistance and other characteristics, it can be very good shock absorption and noise reduction, explosion-proof flexion, the use range is very common, but the production of rubber joint has certain difficulties, its process is complex, and

   Rubber joint Common in the pipeline, because of its high elasticity, high air tightness, medium resistance and other characteristics, can be very good shock absorption and noise reduction, explosion-proof flexion, the scope of use is very common, but the production of rubber joint has certain difficulties, its process is complex, and there are many matters needing attention in the installation, the following small for your detailed answers.
Installation factor of rubber joint
1. Flange
The rubber joint shall be connected by flange (thread), both sides shall be connected with the flange on the pipeline, and the pipe flange shall use GB / t9115.1 (RF) flange. It can not be directly connected with other pipe materials such as clip gate valve.
2. Screw
When installing the screw, the nut should be refitted with spring pad, and it should be tightened symmetrically gradually. Before starting the pump, the nut should be pressurized again and tightened repeatedly until the nut is not loose.
3. Check valve
According to the fluid direction, there should be a check valve after the rubber joint. When the pump is stopped, the check valve should be closed in time, the water hammer should be removed reasonably, and the stability of the rubber joint and pump should be maintained.
4. The larger the size of rubber joint is, the smaller the working pressure is. The higher the medium temperature is, the smaller the working pressure is. When installing and using rubber joint, the suitable rubber joint can be selected according to the corresponding relationship between the above temperature and pressure.
II. Production process of rubber joint
1. According to the different circulation media in the pipeline, the rubber raw materials suitable for the medium are used and cut into the sizes suitable for different pore sizes, so as to facilitate the next step of edge winding.
2. According to the different pressure specifications of products, it is important to carry out edge winding with different specifications of coiled steel wire.
3. According to the pressure of different specifications, the cut rubber and polyester cord are prepared according to different specifications of pressure, and the oblique angle is coiled on the original shelf corresponding to different specifications.
4. Take out the wrapped embryo body from the original shelf, and put the inner container of different caliber into it. The material of the inner liner should be selected according to the different circulation medium.
5. The embryo body method with the inner liner arranged is suitable for the corresponding mold, and it is vulcanized in different specifications of vulcanizing press once. The aim of vulcanization is to promote the crosslinking of chain molecules in rubber into network molecules through external force shearing and high temperature, so as to improve its tensile strength, strength, aging, elasticity and other characteristics, so as to make it more and more valuable.
6. After vulcanization, take off the semi-finished product from the mold, and cut off the excess leftover material and extruded rubber.
7. Select the flange with different specifications, pressures, materials and specifications. According to the size of the ball, the flange enters the vehicle with different overall width and deep groove. The flange surface is cleaned, and the flange hole and inner circle are rounded. The overall flange is galvanized or sprayed with plastic and other anti-corrosion and anti rust solutions.
8. Install the semi-finished ball into the corresponding groove according to the pressure of different caliber, fasten and smooth.
9. The appearance of the installed rubber joint shall be checked and leveled first. The surface layer of colloidal solution shall be free of crack and scratch, and the surface of flange shall be clean and free of burr, followed by sealing pressure test according to different pressure. Then the corresponding radial, axial and angular stretching experiments were carried out.