Vacuum pump composition, principle and operation and maintenance

Vacuum booster pump is mainly used for drawing light vacuum booster brake system can also be used for other transport vehicles and construction machinery. The use of vacuum assisted braking system can improve brake reliability and reduce driver fatigue, help reduce the incidence of traffic accidents and improve vehicle safety. At present, the rapid development of domestic light vehicles, which undoubtedly for the vacuum booster pump provides a vast market. Therefore, in the promotion and use of the process, we must understand and master its performance, principles. The only way to effectively ensure the pump braking performance, extend the service life, play a safety role. 1. Vacuum booster pump works Vacuum booster pump mainly by the pump body, rotor, slider, pump cover, gear, seals and other components, when the pump work, with four slide eccentric rotor counterclockwise Rotating, the slider in its own centrifugal force, close to the inner wall of the pump glide, suction studio continues to expand, was pumping gas through the suction tube to open the one-way valve (pump built-in check valve, the system plays the role of packing Into the suction studio. When the slider to a certain position, the inhalation is completed, then inhaled gas is isolated, the rotor continues to rotate, the isolated gas is gradually compressed - the pressure rise. When the studio goes to communicate with the vent, the gas is vented from the vent. Pump work process, the slider will always be divided into four pump chamber, the rotor per revolution, there are four suction and exhaust process. 2. Usage and maintenance precautions Vacuum booster pump is a high precision and sensitive working pump. The following rules must be strictly observed when using it: (l) The vacuum booster pump lubricates the friction surface with oil to seal the gaps (rotor, Slider, pump body, cover the gap formed), it must choose the right lubricant and the appropriate lubrication. (2) should be used regularly check the operation and lubrication is normal, with or without abnormal noise, so that timely detection and troubleshooting. (3) should always check the use of the pump leaks. (4) If you do not use the vacuum booster pump for a long time, do not immediately work full load when reused. 3. Common failures and troubleshooting (1) the maximum pump vacuum is low, the pump extraction time is extended; failure causes: Run, lubricating fluid is not sufficient; suction pipe leaks; parts wear; gap increased leakage. Troubleshooting: Check the viscosity of lubricating oil, if not qualified, the replacement of the appropriate viscosity of the oil; Check whether the pipeline leaks, if the leak, you need to replace the leak; Check the parts for wear and tear, if worn Those who need grinding or replacement of new parts; check the pressure of lubricating oil, and meet the requirements. (2) pump does not hold pressure, leakage; failure causes: seal leakage diagnosis and troubleshooting: Check the seal is worn and inelastic, if worn, need to be replaced with a new seal. (3) leaks at each interface; cause of the malfunction: the connector is loose or the seal is damaged. Fault diagnosis and troubleshooting: Check whether the loose joints, if loose, need to be sealed sealant fastening joints; if the seal is damaged, the need to replace the new pieces. 4. Disassembly pump precautions Each component in the vacuum booster pump has high machining accuracy and assembly accuracy, in general, users do not disassemble, there are questions should be sent to the manufacturer or repair center for inspection and repair, if Must be disassembled, then pay attention to the following: (l) vacuum booster pump rotor and gear are interference fit, can not be removed. (2) The parts are not allowed bump and scratches, the parts clean with kerosene, stored in a clean box. (3) should pay attention to the sliding block slider arc outward, may not be installed. (4) parts must be clean assembly. (5) After the pump is assembled, the rotor should rotate flexible. 5. Storage Vacuum booster pump should be stored in a dry, non-corrosive gas warehouse, not in the high temperature and -20 ℃ below the long-term storage in low temperature environment, in order to avoid aging rubber seals, and often check the corrosion conditions, if necessary Replace pump anti-corrosion oil.

560nm LED

We are 560nm LED manufacturer from China.


The voltage of lime LED is between 2.0-2.5V. And the brightness level include common bright, super bright and ultra bright.

Ultra bright lime LED isdifferent from those normal green LED, which is have 3.0-3.4 voltage and need to customize.

Same as the white LED, It is the light produced by the blue color chip which is transformed by the special LED fluorescent powder. It does not have a fixed wavelength range and value, which meas lime LED need the coordinate value of X, Y and color temperature to represent it.



We supply variety of 560nm green LED products. Including Through-hole 560nm LED, SMD 560nm LED and high-power 560nm LED. We can also produce 560nm LED according to your requirement.


For the Through-hole Light Emitting Diode 560nm LED,

we can customize the shape, the lighting angle, the number of emitting source, the flat pin LED and braided LED. Such as: 5mm lime 560nm LED, 5mm lime 565nm, 5mm lime 570nm LED, 5mm lime 575nm LED. 3mm lime 560nm LED, 3mm lime 565nm, 3mm lime 570nm LED, 3mm lime 575nm LED.

There are many other shapes for your choose. Customized green LED are available


For the SMD LED 560nm LED,

we can supply dual-chip lime LED, three-chip lime LED, multi-chip lime LED, high voltage LED, flashing lime LED and variety of size SMD LED. For instance: 3528 SMD green 560nm LED, 3528 SMD lime 565nm LED, 3528 SMD lime 570nm LED, 3528 SMD lime 575nm LED. 2835 SMD green 560nm LED, 2835 SMD lime 565nm LED, 2835 SMD lime 570nm LED, 2835 SMD green 575nm LED.

There are also have many other shapes to choose, like the 5050 SMD lime LED, the 5730 SMD lime LED ect. You can choose any one of them for your requirement.


560nm led is a green LED. Common green LEDs are like: lime 560nm LED, lime 565nm LED, lime 570nm led, lime 575nm led and so on.

Led


We will do the High temperature resistance testing and 10 hours ageing treatment before the product out off the factory, which can ensure the stability of each product.

Our LED products have 5 year warranty.

We are the best supplier for your light-emitting diode.


560nm LED, 560nm Yellow LED, 560nm SMD LED, 560nm Green LED

Shenzhen Best LED Opto-electronic Co.,Ltd / BESTSMD CO LIMITED(HK) , https://www.bestsmd.com