FI4501 to FI4506 – Sealing rings for different foaming methods and liquids

FI4501-FI4506 – Sealing rings for different foaming methods and liquids

Suitable sealing rings are required respectively for foaming using gas flow or a stirrer. You can also prepare your measuring instrument for analyses of different types of liquid samples with the choice of the sealing material.

 

 

The following sets of 10 flat seals are available:

DesignationType of foamingDiameterMaterialSuitable for
FI4501sparging

50 mm

Silicone    Aqueous, pH-neutral liquids
FI4502stirring75 mmSilicone    Aqueous, pH-neutral liquids
FI4504sparging50 mmEPDMAqueous liquids (also acid and alkaline); polar organic liquids (alcohols, esters, ketones, amides, nitroalkanes); silicone oil
FI4505stirring75 mmEPDMAqueous liquids (also acid and alkaline); polar organic liquids (alcohols, esters, ketones, amides, nitroalkanes); silicone oil
FI45061sparging50 mmVitonMineral oils

Not shown in image

FI45XX – Sealing rings for different foaming methods and liquids

FI45XX – Sealing rings for different foaming methods and liquids

The available sealing rings (the figure to the left shows a selection) are required respectively for foaming using gas flow or a stirrer or for manual foaming-up. You can also prepare your measuring instrument for analyses of different types of liquid samples with the choice of the sealing material.

 

 The following sets of sealing rings are available1:

NamePieces per setType of foamingUsed for columns/filtersMaterialSuitable for
FI45115stirring or manuallyCY4501/03 CY4571/72siliconeaqueous solutions
FI451225manuallyCY4502/04siliconeaqueous solutions
FI45135stirring or manuallyCY4501/03 CY4571/72EPDMaqueous liquids (also acid and alkaline); polar organic liquids (alcohols, esters, ketones, amides, nitroalkanes); silicone oil
FI45145manuallyCY4502/04EPDMaqueous liquids (also acid and alkaline); polar organic liquids (alcohols, esters, ketones, amides, nitroalkanes); silicone oil
FI4531310spargingCY4501/03 CY4571/72silicone    aqueous solutions
FI453310spargingCY4501/03 CY4571/72Viton    mineral oil, silicon oil
FI45505spargingCY4501/03 CY4571/72
with FL4550 (paper filter holder)
siliconeaqueous solutions

1 You will find sealing rings for the sample holders' predecessor models SH4501 for sparging and SH4502 for stirring at the bottom of this page.
2 One sealing ring is included in the scope of supply for the stirrer module SH4512.
3 Two sealing rings are included in the scope of supply for the DFA100.

FL4501 to FL4504 – Glass filter plates (∅ 50 mm) with different pore sizes

FL4501-FL4504 – Glass filter plates (? 50 mm) with different pore sizes

Our range of 50 mm glass filter plates with different pore sizes means you can influence the bubble sizes of your foam and optimize the analysis for different ranges of foamability and foam stability. The material is chemically neutral in contact with almost all liquids. Our optional TO4501 cleaning set also ensures a long service life. The filter plates are compatible with the SH4501 measuring column holder and all measuring columns with an inner diameter of 40 mm.

The filter plates that can be ordered individually have the following pore sizes:

  • FL4501: 100 to 60 µm
  • FL4502: 40 to 100 µm
  • FL4503: 16 to 40 µm
  • FL4504: 10 to 16 µm

FL45XX – Glass filter plates in stainless steel sockets with different pore sizes and diameters and for different liquids

FL45XX – Glass filter plates in stainless steel sockets

You can use a large variety of filter plates (figure to the left shows a selection) for foaming-up your samples by sparging. All of them have a glass filter, which is embedded in a stainless steel socket that makes inserting the filter into the sample holder very easy. With different defined pore sizes ranging from large to extremely small it is possible to create different bubble sizes depending on the foaming process to be investigated or adapted to the foamability of your sample. The diameter of the filter plate is either 30 mm for the standard-sized measuring columns or 14 mm for columns that are used for small sample volumes. Depending on materials used for embedding the filters, they are appropriate for different kinds of liquid.

The following filters are available1:

NameDiameterfor columnsPore sizefor liquids
FL453130 mmCY4501/03
CY4571/72
G1, 100-160 μm    aqueous solutions
FL453230 mmCY4501/03
CY4571/72
G2, 40-100 μm    aqueous solutions
FL4533230 mmCY4501/03
CY4571/72
G3, 16-40 μmaqueous solutions
FL453430 mmCY4501/03
CY4571/72
G4,10-16 μmaqueous solutions
FL453530 mmCY4501/03
CY4571/72
G1, 100-160 μmaqueous solutions in the neutral pH-range and silicon oils
FL453630 mmCY4501/03
CY4571/72
G2, 40-100 μmaqueous solutions in the neutral pH-range and silicon oils
FL453730 mmCY4501/03
CY4571/72
G3, 16-40 μmaqueous solutions in the neutral pH-range and silicon oils
FL453830 mmCY4501/03
CY4571/72
G4,10-16 μmaqueous solutions in the neutral pH-range and silicon oils
FL454114 mmCY4502/04G1, 100-160 μmaqueous solutions
FL454214 mmCY4502/04 G2, 40-100 μmaqueous solutions
FL454314 mmCY4502/04G3, 16-40 μmaqueous solutions
FL454514 mmCY4502/04G4, 100-160 μmaqueous solutions
FL454614 mmCY4502/04G2, 40-100 μmaqueous solutions in the neutral pH-range and silicon oils
FL454714 mmCY4502/04G3, 16-40 μmaqueous solutions in the neutral pH-range and silicon oils

1 You will find filter bases for the sample holder's predecessor model SH4501 at the bottom of this page.
2 One piece included in the scope of delivery of the DFA100.

FL4511 to FL4514 – Glass filter plates (∅ 24 mm) with different pore sizes

FL4511-FL4514 – Glass filter plates (24 mm) with different pore sizes

For measuring columns with an inner diameter of 20 mm we provide various, mostly chemically neutral glass filter plates with a diameter of 24 mm for the foaming of small sample quantities. You can influence the bubble size with the filters in dependence on their pore size and align the analysis to different ranges of foamability and foam stability. To use one of the filter plates, a PA4504 adapter set is required.


The filter plates that can be ordered individually have the following pore sizes:

  • FL4511: 100 to 160 µm
  • FL4512: 40 to 100 µm
  • FL4513: 16 to 40 µm
  • FL4514: 10 to 16 µm

FL4520 – Paper filters (100 pieces)

FL4520 – Paper filters (100 pieces)

The use of a FL4520 filter paper is particularly recommended for foaming in the case of severely soiling samples. The filters are available in pack sizes of 100 pieces. The paper is made of chemically pure cellulose, is compatible with our measuring columns with an inner diameter of 40 mm without having to be cut to size and can be used with most liquids. The pore size is 12 to 15 µm, about the same porosity as our FL4504 glass filters.

Use of the paper filter requires two FI4501 sealing rings and an additional FI4504 sealing ring.

FL4551 – Paper filters (1,000 pieces)

FL4551 – Paper filters (1,000 pieces)

The use of a FL4551 filter paper is particularly recommended for foaming in the case of severely soiling samples. The filters are available in pack sizes of 1,000 pieces. The paper is made of chemically pure cellulose, is compatible with our measuring columns with an inner diameter of 40 mm without having to be cut to size and can be used with most liquids. The pore size is 12 to 15 µm, about the same porosity as our FL4534/FL4538 glass filters.

The use of a paper filter requires a filter holder FL4550.

HC10 – Humidity chamber

HC10 – Humidity chamber

The wettability of a surface is affected by the climatic ambient conditions. Using the humidity chamber HC10 in combination with a temperature controlled chamber TC30/TC40 enables you to measure contact angles at precisely controlled humidity and temperature.

At temperatures above 50 °C and humidities above 65%, we recommend using the optional insulating hood TC3200 (bottom picture). This hood enables the target humidity to be reached even more quickly and maintained with better stability.

  • Relative humidity (without insulating hood): 15 - 85% at 22 °C, up to 89% at 10 - 15 °C, up to 5% at 70 - 90 °C
  • Time to achieve target value: 20 - 300 s
  • External compressed air supply required (3-6 bar, very dry air). A suitable compressor is available from us.
  • Temperature range between 5 and 90 °C (suitable thermostats are available)

IL10 – Additional cold light source

IL10 – Additional cold light source

In some cases, such as non-reflecting or uneven samples, the image of the drop does not stand out sufficiently from the background. In order to improve the analysis in such cases, the sample can be additionally illuminated with the help of the cold light source IL10. The flexible swan neck for the lamp and the fine regulation of the luminous intensity enable the direction, angle of incidence and brightness to be adjusted to exactly suit the particular situation.