Glass Beads

Glass beads are used as back-up and borehole filter material.

Major Advantages

  • Highest possible effective pore space through exact particle size and spherical shape
  • Optimal adaption of filter openings due to single grain filling of glass beads
  • Pump cleaning is not necessary
  • No disinfection before installation
  • Minimal, smooth surface leads to a deceleration of lead and manganese contamination
  • An optimal regeneration through large pore spaces No subsequent subsidences
  • Thanks to a high flowability it is possible to the fill the glass beads also in narrow spaces without danger of hang
  • Higher material strength of the glass beads in relation to the flint quartz
  • During camera researches wtihin filter wire pipes impurity, contaminat or sedimentation of iron ochre are very good visible

Standard sizes (Other diameters and tolerances are available on inquiry)

Article #

Approx.
Mesh Sizes

Diameter
mm

Bulk Density

kg/l

Bulk Density

lb/ft3

4505R

18 -15

1.51

1.51

94.27

450506R

15 - 11

1.50

1.51

94.27

450708R

12 - 8

1.49

1.52

94.89

451011R

8 - 6

1.48

1.53

95.51

451213R

6 - 4.5

1.47

1.53

95.51

451415R

4.5 - 3.25

1.47

1.49

93.01

 

Inch Size

mm*

   

50165-B

3/8" - 7/16"

10.3

1.45

90.52

5017-B

13/32" - 15/32"

11.0

1.45

90.52

5018-B

7/16" - 1/2"

12.0

1.45

90.52

5021-B

17/32" - 19/32"

14.0

1.43

89.27

5023-B

19/32" - 21/32"

16.0

1.43

89.27

*) simultanous measurement of roundness through digital image processing (Retsch-Camsizer, value b/l3)