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High pressure hose working pressure points
Release time:
2021-08-17
Each high pressure hose has a normal working pressure, the rupture pressure of the high pressure hose is 3 ~ 4 times the working pressure. The greater the pressure, the more strict the number of wire layers and product production, therefore, according to the actual pressure of the system, the greater the working pressure of the choice of high pressure hose, the system works normally, high pressure hose can be used properly.
Each high pressure hose has a normal working pressure, the rupture pressure of the high pressure hose is 3 ~ 4 times the working pressure. The greater the pressure, the more strict the number of wire layers and product production, therefore, according to the actual pressure of the system, the greater the working pressure of the choice of high pressure hose, the system works normally, high pressure hose can be used properly.
High pressure hose working pressure points
1. The temperature of the material transferred by the high pressure hose shall not exceed the factory regulations. Raw oil -40 to 120, gas -30 to 50, water moisturizing lotion below 80.
2, the high pressure pipe should be kept clean, and the interior should be cleaned up. Avoid the entry of foreign human blocks into the descending vein, block the conveying fluid mechanics, and damage the mechanical equipment.
3, high pressure hose layout should be as far as possible to prevent heat sources, if necessary, can be set up waterproof sleeve or heat insulation material, to prevent the hose from touching hot mold.
4. In areas where high-pressure pipes cross or friction occurs on the surface of mechanical equipment, protective measures should be taken to prevent rubber pipes from breaking due to damage.
5. The high pressure pipe should be kept vertical as far as possible, and prevent sharp turns when bending. The bending radius is not small, and the diameter is more than 9 times. A section of parallel line at least twice the diameter of the pipe is required where the hose meets the joint.
6. Do not twist the hose before installing the high-pressure hose. After the hose is slightly twisted, the compression strength will be reduced, the joint will become loose, and the assembly line will need to tighten the plastic hose to the hose instead of screwing the plastic hose to the joint.
7, set high pressure pipe to prevent in a tight state, to have a certain length of capacity, to keep the hose relaxed.
8, usually the application of the whole process, to protect the safety of the hose, avoid the hose extrusion molding, crushing and so on.
9. When controlling the gate valve in real time, it should be adjusted gently to reduce the impact of working pressure on the hose and prevent the hose from cracking.
10, the high pressure hose must be suitable for auxiliary facilities reliable "U" card, sealing ring, measuring cylinder, T shape, etc., the application of other substitutes is prohibited.
11, high pressure hose leakage, crack, bag, joint card rust, stainless steel wire fracture, adhesive brittle crack, should be replaced immediately.
12. High pressure hose must be checked and replaced during normal application.
The appearance of high pressure hose has brought us great convenience, but how to avoid accidents in the process of use, first, regular safety education on the hose, so that workers firmly establish safety awareness. Improve the operation skills of maintenance technicians and strengthen operation exercise. Hydraulic support maintenance personnel must master the various systems and working principles of hydraulic support, accurate, rapid and correct operation. After taking over the post, check whether the pressure gauge is normal, whether the initial support meets the specified requirements, and check whether the TEM hydraulic support is executed, operated, leaked and pipework, whether the connection is good, whether the U-pin is effective, and whether the spray between the frames is good.
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