Centrifugal pump refers that pump which deliver the liquid depend on centrifugal force generated by the rotation of the impeller. Before the water pump start, we must make the pump case and suction pipe full of water, then launch the motor, make pump spindle drive impeller and water to do high speed rotation motion, water takes place centrifugal movement, be thrown to the outer edge of the impeller, through the water channel of the volute pump case flow to the Pressurized water pipe of the water pump. Centrifugal pump can be widely used in liquid transfer.cooling system and so on. Brushless Centrifugal Water Pumps Brushless Centrifugal Water Pumps,Brushless Water Pump,Cooling Tower Water Pump,Brushless Cooling Pump Dongyuan Syscooling Technology Co., Ltd. , https://www.syscooling.com
Currently, most LED chips are still dominated by sapphire or silicon carbide substrates. In order to reduce the production cost of LED chips, researchers have been working hard to improve the LED manufacturing process based on silicon substrates for many years, but there are still problems of cracking or distortion of the silicon substrate. Puri claims that its advanced LED manufacturing process produces gallium nitride LEDs of the same performance on silicon substrates.
Puri has greatly improved the lumens/watt, light color and color rendering index of silicon substrate LED chips. In March of this year, Puri announced that its silicon substrate GaN LED development strategy has been achieved. 135 lm / w white light.
For cold light sources, the sample can achieve 160 lm / w, warm yellow light source can reach 125 lm / w. Warm LED bulbs are expected to achieve 85 lm/w efficiency, which is more efficient than current commercial LED lighting products.
Puri said that it is a very practical goal to launch LED chips based on silicon in the next two years. But the biggest obstacle at present is how to make chips. 
[High-tech LED News] Recently, Puri announced that its new manufacturing process performance indicators have been improved, it is expected to manufacture silicon-based LED chips in the next two years, hoping to reduce the cost of LED lighting by about 20% to 30%.