Hawach Glass Solvent Filter

Hawach Scientific co., LTD. is specializing in the production of glass solvent filter, using special hard quality glass, product quality stability, exported to all parts of the world.

This device is suitable for vacuum filtration of an aqueous solution, organic solution or corrosive liquid, and particle pollution analysis. It is often used for rapid filtration of HPLC solvent and buffer solution to remove impurities that affect the service life of chromatographic column and detection accuracy of the system, so as to protect the HPLC liquid path from being blocked, and at the same time, it has certain de qigong energy, which can eliminate the interference of bubbles to the detection system.

Hawach solvent filter

The funnel, base, and sample receiving a bottle of vacuum filter are made of super-hard glass material with uniform wall thickness and good pressure resistance, which can be used for sterilization under high temperature and high pressure. When filtering, place the disc filter membrane with a diameter of 47mm between the base and the glass funnel and fix it with the anodized aluminum spring clip.

When filtering organic solvents, please refer to “Lubitsch filter membrane chemical compatibility table” to select the appropriate filter membrane material. The base with vacuum joint and the receiving bottle are connected with the inside and outside of the frosted glass.

Only the filter membrane and borosilicate glass components are in contact with the flow, and the surface is sealed with frosted glass. The integrated base and bottle cap are connected with the vacuum above the filtrate outlet, which can avoid the filtrate from being sucked into the vacuum tube, reduce pollution and strengthen the deaeration effect.

300ml Glass Solvent Filters Supplier 300ml Glass Solvent Filters Packaging vacuum filtration

Features of vacuum filter

1. High quality extra hard glass
2. Sparking and crystal-clear, even thickness
3. Funnel: 300ml & 500ml( 300mL Glass Solvent Filter, 500ml Glass Solvent Filtration Apparatus)
4. Flask: 100ml & 2000ml
5. 47mm or 50mm diameter membrane
6. Good coordination with the vacuum pump ( Standard Vacuum Filtration Pump, Anti-Corrosion Diaphragm Vacuum Pump)
7. The whole equipment can be used for high temperature and high pressure sterilization.

Specifications of vacuum filter

No.Funnel SizeFunnelSupport ScreenScreen Pore SizeConnectionFlask
SLGSF03001300mlGlassPyrex glass10μmGround Joint1000ml
SLGSF03001500mlGlassPyrex glass10μmGround Joint2000ml

The vacuum filters are mainly applied for filtration of mobile phase of High-Performance Liquid Chromatography, particulate and microbiological contamination. They are the basic instruments in the chemistry lab.

Particularly, the glass solvent filter can make filtration of all kinds of the aqueous solution, organics and corrosive liquid. Also, the glass solvent filter can be sterilized under thermocompression with the temperature above 100℃.

It should be noticed that the glass solvent filter is fragile so that we cannot make an overall move, especially with a clamp. When referring to the filtering membrane, we can immerse the membrane in the solvent which is ready for filtration, and then we can see if the membrane is dissolved or not in order to check the quality.

Furthermore, we should separate the hydrophilic filtering membrane from the organic ones. Although there are no heads and tails of the membrane, we had better take the smooth side upward and the rough side downward to obtain better filtering effect.

Specifically, when we use the oil-less vacuum pump which supports the glass solvent filter to pump the air, it should not pull out the flexible pipe exactly when the filter is empty. We should turn off the pump when there remains a little bit of liquid.