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Ultrapharma BV | De Droogmakerij 12 | 1851 LX  Heiloo | The Netherlands

+31 856 200 900 | info@ultrapharma.com

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Screens

Our screens are not used the same way as conventional filters, although it can be considered a filter.

Conventional filters are build differently and have many layers to prevent particles to pass through, these can reach efficiencies of almost 100%. A particle comes in many different shapes. For example a hair has a diameter Ø 0,1 mm but the length can be centimeters long. If the hair arrives perpendicular to the screen it might pass a 100 mesh screen. With a conventional filter the second or third layer will prevent the hair to pass. Retention's of standard screens are calculated according to international standards by means of perfectly round glass spheres. Our screens are only one layer and therefore they cannot be considered the same as a filter. Each screen has a high performance gasket made out of one of our validated compounds that we use for our standard Sanitary Gaskets range. 

Click on the above photo for more details

Screens molded our standard

In many upstream and downstream processes it is sometimes required to do an inline or in situ filtration step. It is usually meant to capture isolated particles created by moving parts in the system. Deterioration of valve membranes, pumps or gaskets can generate these kind of particles.

In a start-up phase it can be used to protect pumps from large items that accidentally fall in the system and are flushed through causing major damage.   

Filling needles can be equipped with a fine filter down to 10µm to capture anything that should not be there, before the vial is sealed. 

Available Sizes

1/2" through 6" (TC 25 -TC 167)

DIN32676 A, B, C same TC diameters

Available Compounds

CMD-1004  EPDM black

CMD-1010  FKM black

CMD-1012  Platinum Silicone Translucent

CMD-1018  PTFE white

CMD-1019  Steam-Flon

Sock Screens 

Sock screens offer a greater soil collection capacity than standard flat screens. They are available in 150 mm (6") and 40 mm (1,5") lengths.  If the capacity of a standard flat in situ filter is not sufficient then the Sock Screen is a good alternative.

 

The sock screen is supplied with a removable elastomeric seal. Not bonded.

 

PTFE seals are now available for this product, due to a new moulding technology.

Steam-Flon®is either removable or moulded.  

Available Sizes

3/4" through 4" (TC 25 -TC 119)

DIN32676 A, B, C same TC diameters

Available Compounds

CMD-1004  EPDM black

CMD-1010  FKM black

CMD-1012  Platinum Silicone Translucent

CMD-1018  PTFE white

CMD-1019  Steam-Flon®

Removable Screens 

The in situ filters are collecting particles and therefore they need to be replaced or cleaned on a regular basis.  We offer a system with removable gaskets allowing a better cleaning process. The screen can be removed from the gaskets and cleaned in an ultrasonic bath.

 

After cleaning they can be assembled and sterilized and placed back in the system. 

Available Sizes

1/2" through 4" (TC 25 -TC 119)

DIN32676 A, B, C same TC diameters

Available Compounds

CMD-1004  EPDM black

CMD-1010  FKM black

CMD-1012  Platinum Silicone Translucent

CMD-1019  Steam-Flon® (see chapter Removable Steam-Flon®)

Double mesh Sintered Screens 

When entering the area of finer mesh sizes we recommend the use of Sintered mesh screens. The screen is build up with a supporting screen and a fine mesh screen on top. These are “welded” together and cannot be separated. This Double mesh product provides better pressure resistance and is suitable for backwashing cycles.

The double mesh sindered screens cannot be molded in elastomers. 

Available Compounds

CMD-1004  EPDM removable

CMD-1010  FKM removable

CMD-1012  Platinum Silicone removable

CMD-1018  PTFE

CMD-1019  Steam-Flon® (see chapter Removable Steam-Flon®)

Steam-Flon® is a registered trademark of Ultrapharma BV

What you should know

Screens can also be used at the point of use in WFI systems, it is fascinating to know that the pressure drop over a 2” screen with 150 mesh is only 150 mbar at 300L/min.  Frequent cleaning of the screen is required, because the captured particles will create a higher pressure drop eventually.

Pressure Drop Graph Screens

We make screens in all standards such as:

DIN32676 series A, B, and C.

  • DIN32676 Series A

  • ISO1127 (DIN32676 Series B)

  • ASME BPE (DIN32676 Series C)

  • ISO2852

  • SMS3017

 Standard Screen material is 316SS

Steam-Flon® is a registered trademark of Ultrapharma BV

  • DIN11851

  • DIN11864

  • DIN11853

  • SMS1149-L

  • BS4825

 

bROCHURE

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