Ways to prolong the service life of ultra-high pressure metal hoses
When using and selecting ultra-high pressure hoses, according to the working pressure of the ultra-high pressure cleaning machine, correctly select the appropriate pressure level of the hose. When the practical application pressure exceeds 1.25 times of the regular pressure, the service life of the hose will be reduced. In addition, the service life of the ultra-high pressure hose is very important. The pressure fluctuation of the high-pressure spray gun is caused by the fluid when the ultra-high pressure cleaning machine is working. The pressure pulsation is caused by the opening and closing of the valve tube at an instant. And other elements. Therefore, it is recommended to use ultra-high pressure hoses to stop the selection at 1.5 times of working pressure.
When the ultra-high pressure hose is equipped, the selection should be stopped according to the request of the ultra-high pressure cleaning host. Because the pressure and flow of the ultra-high pressure have very strict rules or restrictions, the change of the pipe size will affect the high-pressure water. The working force of the jet is balanced with the front of the system. The actual test proves that replacing the 4mm ultra-high pressure hose with 5mm ultra-high pressure hose can shorten the service life to one-third.
When the ultra-high pressure cleaner is working, the hose should be tightened and bent as much as possible. If it is necessary to bend to ensure that the bending radius is not too small, it is generally not less than 15 times the diameter of the pipe, otherwise it will cause the lateral wire drawing of the reinforcement layer, and the inside of the wire will be tightened, thereby reducing the pre-strength of the ultra-high pressure. The hose will ultimately affect the service life of the hose.
When the ultra-high pressure washer is in working condition, the ultra-high pressure hose cannot be crushed by a heavy hammer, and sharp instruments cannot be damaged or bent. Therefore, the outer layer should be protected from excessive wear. The high-pressure pipe for suspension should be firmly fixed in short intervals. During the operation of special cleaning operations, it is necessary to prevent frequent opening and closing of the hand high-pressure spray gun to reduce the impact of the pressure pulse on the hose, thereby extending the service life of the hose.