Fused Quartz Wool and Frits Category

QUARTZ FRITS

 

Quartz Fritted Discs
QUARTZ FRITS - CLICK TO ENLARGE

 

A frit is defined as a porous filter composed of bonded grains of quartz glass. Frits are manufactured from the same high purity raw material as our tubing and rod. Some applications of fritted discs include filtration of liquids or corrosive gas, heat diffusion, flow regulation, and chemically inert and high purity applications.

 

To order online, simply click on an item number, appearing under POROSITY,
to proceed through our easy ordering system. PLEASE NOTE: A minimum order of $50 is required.

QUARTZ FRITS

   

Item Numbers

 

Item Numbers

 

Item Numbers

 

DIAMETER
(mm)

THICKNESS
(mm)

POROSITY
00

PRICE
EACH

POROSITY
0

PRICE
EACH

POROSITY
1

PRICE
EACH

10 2–3 ----- ----- QPD10-0 $  17.50 QPD10-1 $  25.20
15 2–3 ----- ----- QPD15-0 $  19.80 QPD15-1 $  27.80
20 3–5 QPD20-00 $  33.95 QPD20-0 $  23.00 QPD20-1 $  30.95
25 3–5 QPD25-00 $  41.65 QPD25-0 $  28.60 QPD25-1 $  38.25
30 3–5 QPD30-00 $  55.95 QPD30-0 $  37.30 QPD30-1 $  48.75
35 3–5 QPD35-00 $  78.00 QPD35-0 $  45.95 QPD35-1 $ 59.90
40 3–5 QPD40-00 $  85.45 QPD40-0 $  57.00 QPD40-1 $  74.75
50 4–6 QPD50-00 $112.80 QPD50-0 $  75.00 QPD50-1 $100.00
60 4–6 QPD60-00 $140.15 QPD60-0 $  94.20 QPD60-1 $124.50
70 4–6 QPD70-00 $170.80 QPD70-0 $114.00 QPD70-1 $150.00
80 4–6 QPD80-00 $200.00 QPD80-0 $133.60 QPD80-1 $162.50
90 4–6 QPD90-00 $227.60 QPD90-0 $151.00 QPD90-1 $175.00
100 4–6 QPD100-00 $287.00 QPD100-0 $171.85 QPD100-1 $187.50
               
   

POROSITY
2

PRICE
EACH

POROSITY
3

PRICE
EACH

POROSITY
4

PRICE
EACH

10 2–3 QPD10-2 $  17.50 QPD10-3 $  20.90 QPD10-4 $  23.00
15 2–3 QPD15-2 $  19.80 QPD15-3 $  23.00 QPD15-4 $  25.70
20 3–5 QPD20-2 $  23.00 QPD20-3 $  33.75 QPD20-4 $  37.50
25 3–5 QPD25-2 $  28.60 QPD25-3 $  41.25 QPD25-4 $  45.00
30 3–5 QPD30-2 $  37.30 QPD30-3 $  55.00 QPD30-4 $  58.75
35 3–5 QPD35-2 $  45.95 QPD35-3 $  68.75 QPD35-4 $  75.00
40 3–5 QPD40-2 $  57.00 QPD40-3 $  83.75 QPD40-4 $  90.00
50 4–6 QPD50-2 $  75.00 QPD50-3 $111.25 QPD50-4 $121.25
60 4–6 QPD60-2 $  94.20 QPD60-3 $137.50 QPD60-4 $150.00
70 4–6 QPD70-2 $114.00 QPD70-3 $182.50 QPD70-4 $163.75
80 4–6 QPD80-2 $133.60 QPD80-3 $197.50 QPD80-4 $212.50
90 4–6 QPD90-2 $151.00 QPD90-3 $210.00 QPD90-4 $225.00
100 4–6 QPD100-2 $171.85 QPD100-3 $253.75 QPD100-4 $253.75
               
               
               

AVERAGE POROSITY

 

POROSITY

PORE SIZE

 

  00 200–300 micron  
  0 150–200 micron  
  1 90–150 micron  
  2 40–90 micron  
  3 15–40 micron  
  4 4–15 micron  

 

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Porosity

Choosing the correct porosity is key for success in working with glass filters. These frits vary in porosity according to grades that are expressed as 00, 0, 1, 2, 3, and 4. The table below shows the various fields of application for each grade of porosity. The pore size indicates the the largest pore in the disc, as well as the the diameter of the smallest particle retained during filtration.

 

FRITTED DISC APPLICATIONS

POROSITY
 

NOMINAL MAXIMUM
PORE SIZE (µ)

EXAMPLE FIELDS OF
APPLICATION

Porosity 00 Quartz Fritted Disc Diagram 200–300 Liquid and gas distribution
Porosity 0 Quartz Fritted Disc Diagram 150–200 Gas distribution
Gas distribution in liquids at low pressure
Filtration of very coarse precipitates
Porosity 1 Quartz Fritted Disc Diagram 90–150 Coarse filtration,
Filatration of coarse precipitates, gas distribution
in liquids
Liquid distribution, coarse gas filtration
Extraction apparatus for coarse grain minerals
Loose filter layer substrates for gelatinous precipitates
Porosity 2 Quartz Fritted Disc Diagram 40–90 Prepatory fine filtration
Prepatory work with crystalline precipitates
Mercury filtration
Porosity 3 Quartz Fritted Disc Diagram 15–40 Analytical filtration
Analytical work with medium-fine precipitates
Preparatory work with fine precipitates
Filtration in cellulose chemisty, fine gas filtration
Extraction apparatus for fine-grained minerals
Porosity 4 Quartz Fritted Disc Diagram 4–15 Analytical fine filtration
Analytical work with very fine precipitates
(e.g., BaSO4, Cu2O)
Preparative work with precipitates of appropriate fineness
Non-return and stop valves for mercury

 


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