First, the three screw pump speed selection Three screw flow and speed into a linear relationship, relative to the low-speed screw pump, high-speed screw pump although it can increase the flow and lift, but significantly increased power, high speed accelerated rotor And stator wear, will inevitably lead to failure of the screw pump, screw rotor and high-speed fixed rotor length is very short, easy to wear, thus shortening the life of the screw pump by reducer or stepless speed reduction mechanism to reduce Speed, the exploration speed maintained at a reasonable range of three hundred revolutions per minute, and high-speed operation of the screw pump, the service life can be extended several times. Second, the quality of the screw pump Now on the market of the type of screw pump Relatively speaking, imported screw pump design is reasonable, the material is excellent, but the price is higher, the service is not in place, the parts price is high, the ordering cycle is long, which may affect the normal operation of the production.Most of the domestic production of imitation imported products , Good and bad product quality, the choice of domestically produced products, when considering its cost, the choice of low speed, long lead, the amount of transmission components of good quality, long life rating of the product. Third, To ensure that debris does not enter the pump Wet sludge mixed with solid impurities will screw the rubber material stator damage, so to ensure that debris does not enter the cavity of the pump is very important, many sewage treatment plant before the installation The grinder, and some grille installation or filter, blocking debris into the screw pump, the grille should be promptly salvaged to avoid clogging. Fourth, to maintain a constant outlet pressure Screw pump is a positive displacement rotary pump, when After the outlet is blocked, the pressure will gradually increase so that the pressure exceeds a predetermined value. At this time the motor load increased dramatically. Transmission machinery related parts load will exceed the design value, serious motor burned occurs, the transmission parts fracture. In order to To avoid damage to the screw pump, usually at the outlet of the three screw pump to install bypass relief valve to stabilize the outlet pressure, to maintain the normal operation of the pump. Fifth, to avoid breaking Three screw pump is not allowed to run in the case of broken material , Once occurred, the rubber stator due to dry friction, instantaneous heat generated and burned, so the grinder intact grille smooth is one of the necessary conditions for the normal operation of the screw pump, for which some screw pump is still on the pump body security It is equipped with a stop device for cutting off materials. When a material break occurs, the vacuum pump will stop the screw pump due to the self-priming function of the screw pump.
Universal Pipette Tips
Universal Pipette Tips, which are disposable consumables, are specially designed to reduce the residual adsorption of samples during the pipetting process. They can be used in any molecular biology and genetic research applications. Yongyue Medical's universal Pipette tips can be used in different applications. brand of pipettes. Sterile filter pipette tips is an upgraded version of universal pipette tips, that is, a filter element is added to the upper end of universal pipette tips, and the pore size is optimized to ensure the barrier effect and good ventilation.
Universal Filter Tips,Filtered Tips,Racked Pipette Tips,Micropipette Tips,Sterile Filter Pipette Tips
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