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Filter Disk made of Borosilicate glass - Type: G

Filter Disk made of Borosilicate glass - Type: G
Product specification Type: G: ground to nominal diameter, edge non-fused more

Product specification

Type: G: ground to nominal diameter, edge non-fused

General Information Filters made of borosilicate glass are suitable for various applications... more

General Information

Filters made of borosilicate glass are suitable for various applications because of their excellent properties. Applications are pharmaceutical, biotechnology, medical, chemical and environmental. They are used from coarse liquid and gas distribution to bacteria filtering.

THOMAPOR®-borosilicate universal filters are exclusively made of borosilicate glass, without using other substances, such as binding agents which corresponds to DIN ISO 3585. They consist of pure glass grit.

The filter effect of a porous pad comprises screen effect and adsorption. If a filter should only act as a screen, its pores have to be smaller than the solid particles to be filtrated. The fluid volume to be put through is relatively small. Large flow volumes are achieved by use of a filter pad of which the filter effect is primarily based on adsorption. In this case, the filter pores can to be several times larger than the solid particles to be separated; e.g. for sterile filtration of air porous filter pads with pore sizes of 15 to 40 µm are used while the size of the particles to be retained (micro-organisms) is only 1/10 to 1/50 of the filter pore size. A sure adsorption can only be achieved with a very large inner surface of the filter body. If a filter pad is fritted of glass grit should get a large inner surface, the single granule already has to have a maximum large surface.

In this respect the THOMAPOR®-borosilicate universal filter program is an innovation. For production of the granules special crushing processes are used guaranteeing a splintery granule with a particularly large surface. This surface is again enlarged by a special treatment.

THOMAPOR®-borosilicate universal filters are manufactures as round plates in sizes of 5 to 120 mm diameter and are available in two designs:

Type: G: Ground to nominal diameter, edge non-fused

Type BG: Ground to nominal diameter and surface biplane, edge non-fused

The filter porosity is divided into 6 categories and lies between 10 and 500 µm, rendering the filters usable for all work in the chemical and pharmaceutical industry, in the laboratory and in industrial-scale plants.

The pore size indicated refers to the smallest size of particles to be retained during filtration. The porosity is determined by using the bubble pressure method according to Bechhold:

P 500, 250 - 500: Distribution of fluids and gases, supports for solid materials in flow systems

P 250, 160 - 250: Distribution of gases, distribution of gases in fluids with low gas pressure, filtration of coarse precipitations

P 160, 100 - 160: Coarse filtration, filtration of coarse precipitations, gas distribution in fluids, fluid distribution, coarse gas filter, extraction apparatuses for coarse material, supports for loose filter layers against gelatinous precipitations

P 100, 40 - 100: Preparative fine filtration, preparative work with crystalline precipitations, mercury filtration

P 40, 16 - 40: Analytical filtration, analytical work with medium fine precipitations, preparative work with fine precipitations, filtrations in cellulose chemistry, fine gas filters, extraction apparatuses for fine-granular material

P 16, 10 - 16: Analytical fine filtration, analytical work with very fine precipitations (e.g. BaSO4, Cu20), preparative work with corresponding fine precipitations, check-valve and stop valve for mercury

Item Image Outside Ø1
mm
Porengröße
µm
Einheit
Stück
Price
Euro*
Buy
52559
10 500 10 61.00
52560
10 250 10 61.00
52561
10 160 10 61.00
52562
10 100 10 61.00
52563
10 40 10 61.00
52564
10 16 10 69.00
52566
20 500 10 64.00
52567
20 250 10 64.00
52568
20 160 10 64.00
52569
20 100 10 64.00
52570
20 40 10 64.00
52571
20 16 10 81.00
52573
25 500 10 67.00
52574
25 250 10 67.00
52575
25 160 10 67.00
52576
25 100 10 67.00
52577
25 40 10 67.00
52578
25 16 10 78.00
52580
30 500 10 74.00
52581
30 250 10 74.00
52582
30 160 10 74.00
52583
30 100 10 74.00
52584
30 40 10 74.00
52585
30 16 10 86.00
52587
40 500 10 91.00
52588
40 250 10 91.00
52589
40 160 10 91.00
52590
40 100 10 91.00
52591
40 40 10 91.00
52592
40 16 10 99.00
52593
50 500 10 127.00
52594
50 250 10 127.00
52595
50 160 10 127.00
52596
50 100 10 127.00
52597
50 40 10 127.00
52598
50 16 10 148.00
52599
60 500 6 113.00
52600
60 250 6 113.00
52601
60 160 6 113.00
52602
60 100 6 113.00
52603
60 40 6 113.00
52604
60 16 6 142.00
52605
70 500 3 100.00
52606
70 250 3 100.00
52607
70 160 3 100.00
52608
70 100 3 100.00
52609
70 40 3 100.00
52610
70 16 3 129.00
52611
80 500 3 110.00
52612
80 250 3 110.00
52613
80 160 3 110.00
52614
80 100 3 110.00
52615
80 40 3 110.00
52616
80 16 3 142.00
52617
90 500 3 116.00
52618
90 250 3 116.00
52619
90 160 3 116.00
52620
90 100 3 116.00
52621
90 40 3 116.00
52622
90 16 3 158.00
52623
100 500 1 88.00
52624
100 250 1 88.00
52625
100 160 1 88.00
52626
100 100 1 88.00
52627
100 40 1 88.00
52628
100 16 1 116.00
52629
120 500 1 107.00
52630
120 250 1 107.00
52631
120 160 1 107.00
52632
120 100 1 107.00
52633
120 40 1 107.00
52634
120 16 1 129.00
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