Introduction to Vacuum Filtration

Basic Knowledge of Vacuum Filtration

In fact, vacuum filtration is the most widely used and mature filtering method both in theory and practice. Like other cake filtration methods, porous filter media is also used to support the filter cake in vacuum filtration technology. However, the difference is that less driving force is used in vacuum filtration so the technology is applicable for some special cases.

If you use common or inapplicable filtration equipment, it will lead to cracking and deformation of the container, and, more seriously, it will corrode the inner valve plate and further damage the entire equipment. That is why anti-corrosion vacuum filtration equipment is different from common solvent filtration equipment in material and design.

Hawach vacuum filtration device is a kind of equipment that uses vacuum negative pressure as a driving force to realize solid-liquid separation. In structure, the filter section extends along the horizontal length direction and can complete filtering, washing, drying, and regeneration of filter cloth in turn.

The common rubber belt filter equipment on the market has the advantages of high filtration efficiency, large production capacity, good washing effect, low moisture content of filter cake, flexible operation, and low maintenance cost. We will introduce in detail the components of our vacuum filtration as following aspects.

Features of Vacuum Filtration

Vacuum filtration is a method of accelerating water filtration by taking advantage of the negative pressure created by pumping, applied disciplines of which include materials science and technology, inorganic non-metallic materials, ceramics, and ceramic material technology.

1. Advanced design, high working efficiency, and long service life;
2. No need for any working medium and no pollution;
3. Ideal vacuum degree and high air velocity;
4. The motors provided by ODM;
5. Equipped with thermal power saver;
6. Non-friction membrane body movement, no heat generation, no friction loss;
7. Designed with an automatic cooling and air exhaust system.

Features of stainless steel multi-branch vacuum filtration

It mainly consists of stainless steel filter cup 316L, stainless steel filter head 316L, stainless steel filter support 316L, stainless steel valve, aluminum alloy clamp, dust cover, rubber plug, and so on.
1. Easy to disinfect at high temperature, resistant to high temperature and corrosion.
2. Multiple samples can be processed at the same time.

The solvent filter of vacuum filtration

This part mainly consists of a triangular hydrops bottle (1L) sand core filter head, filter cup (300ml), fixing clip, dust cap, hose, and hose linker.
1. High quality glass material;
2. Good pressure resistance;
3. Fast flow and good sealing performance;
4. The size and specification meet international standards.

Glass multi-branch vacuum filtration

Glass multi-branch vacuum filtration mainly consists of a glass filter cup, high borosilicate filter head, stainless steel filter support 316L, stainless steel valve, aluminum alloy clamp, dust cover, and rubber plug.

Anti-Corrosion Vacuum Filtration in Laboratory

Talking about laboratory vacuum filtration, anti-corrosion vacuum filtration equipment is a kind of special and professional filtering product. Other than solvent filtration such as suspended solids, microorganisms, culture medium, buffer solution, and cleaning solution, vacuum filtration is always used for filtering the mobile phase, organic solvent, and electrolyte. These samples are strongly corrosive and some can produce volatile gas.

Anti-Corrosion Diaphragm Vacuum Pumps

Each of our models has a corresponding type of anti-corrosion pump, and the technical parameters are unchanged. The anti-corrosion pump is characterized by Teflon treatment, the contact with the gas is made of PTFE material, resistant to strong acid and alkali, and suitable for corrosion protection. Chemical, pharmaceutical, petrochemical gas, etc. This pump is suitable for vacuum filtration, vacuum distillation, rotary evaporation, vacuum concentration, centrifugal acceleration, solid phase extraction, and the like. This is a cost-effective product with reliable quality and a unique structural design that is suitable for most experiments.

1. Corrosion-resistant, able to withstand almost all strong acids (including aqua regia), strong bases, strong oxidants, reducing agents, and various organic solvents.
2. The surface is not sticky, has high insulation, and high moisture, and most of the impurity particles can not adhere to the surface.