Several methods for preventing waste liquid from sucking in vacuum pumping pump
Vacuum pumping pumps are used in the laboratory for use with a variety of vacuum filtration devices. If the vacuum pumping pump is inadvertently operated during use, it will easily cause the liquid to suck up and damage the vacuum pump. This article briefly describes several ways to prevent liquid sucking:
1. Buffer bottle: a buffer bottle is installed between the vacuum filter bottle and the vacuum pump. The two interfaces inside the buffer bottle should be distinguished by height, the interface connecting the filter bottles is lower, and the interface connecting the vacuum pump is higher;
2. Vacuum pump with buffer cup and filter element: such as St. R300 laboratory vacuum pump , with buffer cup and filter element at the inlet of the pump, it can effectively prevent water vapor and impurities. Or a liquid suction pump, which is the last protective impurity of the pump;
3. Water-blocking filter: A water-blocking filter is arranged between the suction pump and the vacuum filter bottle connecting hose. The water-blocking filter is also called a vent filter, that is, the air can pass, the liquid cannot pass, once it happens The liquid inverted suction and water blocking filter can most effectively prevent liquid from being sucked into the suction pump;
4. Use the suction filter bottle with anti-waste check valve: The LF30 vacuum filter bottle under the St. Stephen brand has an anti-waste check valve inside. When the liquid level inside the filter bottle rises and rises close to the bottle mouth, The rising liquid level will push the check valve up and close the suction port, which can effectively avoid the liquid that should be forgotten to pour out the filter bottle and cause a large amount of liquid to be sucked into the suction pump.
VTM sampling kits are designed for the collection, preservation, and transport of viruses, chlamydia, mycoplasma, and ureaplasma urea. They are now widely used for sampling and transporting prior to virus detection. MandeLab's VTM kits provide a safe and convenient way to collect and transport virus samples.
Nasal swab kit virus sampling tube,Used to collect samples of secretions from the throat or nasal cavity, Disposable
Jiangsu iiLO Biotechnology Co., Ltd. , https://www.sjiilogene.com