Several Types of Vacuum Filtration Used in The Laboratory

Filtration is the way to remove solids from a liquid stream by bypassing the stream through a porous medium and retaining the solids on the medium. Vacuum filtration is one of the most widely used filtration methods in theory and practice. It is used to separate the filtrate by causing a certain degree of negative pressure (vacuum) on the filter medium side. It features large productivity, a high degree of automation, and is suitable for large-scale continuous production. It can run continuously, it is easy to control running parameters. Besides, it has the advantages of high filtration efficiency and good effect, compact structure, long service life, convenient installation, and simple operation and maintenance.

For better and more efficient results, vacuum filtration was invented. The vacuum filtration device has two parts, a disposable filter funnel, and a disposable filtrate receptacle. When we put the device into practice, the funnel and receptacle should be used with a reusable base. And the base is connected to a vacuum source. After everything is set up, the vacuum will be applied through a connecting tube to the receptacle, and draw the filtrate into the receptacle from the funnel.

Vacuum filtration is widely applied in the lab for various applications such as microorganism tests in food, pharmacy, beverage, and drinking water industries and suspended solid tests in the water treatment field, solvent refinement.

Hawach is one of the best suppliers of vacuum filtration devices all around the world. Equipped with a separate valve that can filter single or multiple samples simultaneously. Hawach single solvent filters are designed with a single sample, solvent filter. Both glass and stainless steel can be vacuum filtered. The vacuum filter is equipped with a separate valve that can simultaneously filter single or multiple samples, saving a lot of test time.

Types of Vacuum Filtration

Vacuum Filtration provided by Hawach includes glass and stainless steel, concretely speaking, they are diaphragm vacuum pumps, glass solvent filters, glass vacuum filtrations, and stainless steel vacuum filtration.

Diaphragm vacuum pumps fall into two categories: anti-corrosion diaphragm vacuum pumps and standard diaphragm vacuum pumps. Glass solvent filter falls into 300ml glass solvent filters and 500ml glass solvent filters. Glass vacuum filtration falls into one-branch, three branches or six branches glass vacuum filtrations; stainless steel vacuum filtration falls into one-branch, three branches or six branches stainless steel vacuum filtrations. The Hawach stainless steel vacuum filter can process multiple samples at the same time without contaminating each other, increasing work efficiency.

Hawach 300ml Glass Solvent Filters
Glass Three-Branches Vacuum Filtrations
Stainless Steel 6-Branches Vacuum Filtrations

In the laboratory, different types of vacuum filtration are necessary for the creation of various chemicals and the handling of hazardous substances and volatile liquids. Vacuum filtrations are ideal for delivering volatile liquids from one place to another because they are completely enclosed and capable of handling items without damaging the system.

However, not every laboratory vacuum filtration can be used in the same way. Actually, there are three different types of laboratory vacuum filtration.

The first is chemical vacuum filtration. Its special materials can protect people from chemical contact. The material inside the filtration is non-corrosive and will not be damaged through repeated chemical contact, which is quite useful in dealing with large quantities of chemical liquids and materials.

The second is oil-free vacuum filtration. This product aims to provide the cleanest transportation mode. Vacuum operation does not have any type of oil lubrication, which makes them very suitable for the transportation of fine materials and the presence of liquid oil.

The third is high vacuum filtration. High vacuum filtration has high strength, which can rapidly absorb various viscosity liquids. It is ideal for the fast delivery of various laboratory liquids from one place to another. And it’s ideal for transporting liquids that required stable storage temperature or mixture.

Property of Vacuum Filtration

Vacuum Filtration provided by Hawach is characterized by high temperature and corrosion performance, high work efficiency, and excellent quality.