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Conical filters

Conical filters for exhaust valve

The G4 cone filter set consists of 5 filters. On this page you will find cone filters in different sizes. The size of the filter is the same size as your exhaust valve. These high quality filters can easily be placed on the exhaust valve, this ensures that no dust and dirt gets into the exhaust and the ventilation motor. This way the ventilation system is easy to keep clean.

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5 pieces Cone filter exhaust vent Ø100 mm filter set G4

Cone filter exhaust vent Ø100 mm filter set G4

7-9 working days
  • Filter set
  • 5x cone filter
£ 10,13 -20%
£ 8,10 £ 6,75 Excl. VAT
Product code: 38015016
5 pieces Cone filter exhaust vent Ø125 mm filter set G4

Cone filter exhaust vent Ø125 mm filter set G4

Stock item: 3-5 working days
  • Filter set
  • 5x cone filter
£ 10,13 -20%
£ 8,10 £ 6,75 Excl. VAT
Product code: 38015017
5 pieces Cone filter exhaust vent Ø160 mm filter set G4

Cone filter exhaust vent Ø160 mm filter set G4

7-9 working days
  • Filter set
  • 5x cone filter
£ 10,80 -20%
£ 8,64 £ 7,20 Excl. VAT
Product code: 38015018
5 pieces Cone filter exhaust vent Ø200 mm filter set G4

Cone filter exhaust vent Ø200 mm filter set G4

7-9 working days
  • Filter set
  • 5x cone filter
£ 10,80 -20%
£ 8,64 £ 7,20 Excl. VAT
Product code: 38015019
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Conical filters

What are cone filters?

Conical filters are filters with a conical shape that you can place on the exhaust valve. These filters make sure that no dirt gets into the duct and into the motor of your ventilator. Therefore, they are also called valve filters or channel filters. This way, it is very easy and less time-consuming to keep the ventilation system clean. Replace these filters at least every year for optimal operation of the filters and the ventilation system, also think about cleaning the valves. Can't find the right filter? Then please contact us.

 

How do I install the cone filter?

Installing a cone filter is very easy. Take the valve out of the housing and mark the position on the inside of the valve with a waterproof pen. Valves are often set in a certain way; it is important that they remain in the same position for optimum system operation. We recommend that you clean the valve thoroughly at this point. Then slide the valve filter over the back of the valve. After this, replace the valve with filter in the ventilation duct.

 

Nieuwe regelgeving WTW-filters: ISO16890

Sinds augustus 2018 is de filternorm veranderd. De kwaliteit van de filters wordt niet meer aangeduid met G3, M5 of F7 maar met de nieuwe ISO16890 normering. Met deze nieuwe norm kan de kwaliteit van WTW-filters vele malen beter worden aangeduid en dit levert dus ook meer duidelijkheid op voor de klant. In de nieuwe regelgeving worden de volgende waardes per filter aangegeven:
 

  • ISO Coarse - percentage van grof stof dat wordt tegengehouden door de filter
  • ISO ePM1 - percentage van fijnstof ( < 1 µm ) dat de filter tegenhoudt
  • ISO ePM2,5 - percentage van fijnstof ( < 2,5 µm ) dat de filter tegenhoudt
  • ISO ePM10 - percentage van fijnstof ( < 10 µm ) dat de filter tegenhoudt

 

Vergelijken oude en nieuw norm WTW filters

Bij WTW-filters wordt ook nog vaak de oude regelgeving gebruikt en daarom is het handig om deze normeringen te kunnen vergelijken. In onderstaande tabel hebben wij de termen tegenover elkaar gezet, om zo een beter beeld te geven van de verschillende filterklasses. Let op: dit is een schatting en de waardes kunnen licht afwijken.
 

Filterklasse ISO Coarse ISO ePM10 ISO ePM2,5 ISO ePM1
G3 > 45 % - - -
G4 > 90 % - - -
M5 > 95 % > 50 % - -
M6 > 95 % > 60 % 50 - 60 % -
F7 > 95 % > 85 % 65 - 80 % 50 - 65 %
F8 > 95 % > 90 % > 80 % 65 - 80 %
F9 > 95 % > 95 % > 95 % > 80 %

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