Background And Rational Of Vacuum Filtration

The vacuum filtration is a device that realizes solid-separation with vacuum negative pressure as the driving force. In terms of the structure, the filtration section is arranged along the horizontal length direction, which can continuously complete filtration, washing, drying and other operations. It is mainly used for solid-liquid separation, liquid clarification, sterilizing, removing impurities and also for room temperature reaction.

Background and Rational of vacuum filtration
Traditionally, the separation is usually carried out by a conical funnel with a filter paper of different sizes, through which the liquid is pushed through the filter membrane by natural penetration and gravity. However there exist a great disadvantages. The pore size of the filter membrane will cause great resistance to the liquid, resulting in an extremely slow filtration speed.

Compared with traditional separation method, vacuum filtration can help greatly improve the filtration efficiency and save time.
Main performance of vacuum filtration:

1. Filtration bottle is made of borosilicate glass with excellent chemical and physical properties.
2. It has stainless steel brinell funnel, with excellent physical and chemical properties.
3. Stirring plug is made of special PTFE material, with perfect technology, corrosion resistance, and high cost performance.
4. There is no blind corner in the container, which is detachable for solid material discharge.
5. The machine is completely sealed, and the negative pressure can reach below 0.095 mpa at rest.

Hawach 300ml Glass Solvent Filters

Advantages of HAWACH Vacuum Filtration
The core highlights of HAWACH vacuum filtration device can be represented from the following aspects:
Pump:
1. Advanced design, high work efficiency and long service life.
2. It can work without any medium(oil-free pump), without pollution. Meanwhile, the air exchange chamber of the machine is built with filtering materials, so as to ensure the purity of the air.
3. Ideal vacuum degree and high air velocity
4. The motor is provided by ODM, a professional export motor manufacturer
5. It is equipped with a hot power protector: when the temperature of pump reaches 130℃, the power will cut off automatically to protect the motor from loss.
6. Adopt friction-less membrane body movement, o heat and no friction loss. Adopt imported rubber for diaphragm, corrosion resistance and long service life.
7. The machine is designed with automatic cooling and exhausting system to ensure 24-hour continuous operation.
8. There is a surface treatment by Teflon for the connected parts of the anti-corrosion pump and gas, which has a complete resistance to chemical corrosion.

Stainless Steel Multi-connection Vacuum Filter:
1. It can process multiple samples at the same time with no pollution and can improve working efficiency.
2. Stainless steel filter can be easily used for high temperature disinfection, with high temperature resistance, and corrosion resistance.

Solvent filter:
1. With high quality glass materials, which is smooth and transparent, with no bubble.
2. The glass material is used to resist the temperature variation up to 280℃.
3. It has goof pressure resistance and can be used for high temperature and high pressure sterilization
4. With fast flow, standard grinding and good sealing performance.
5. The size and specification are in line with international standards, which can match with various foreign brands.