Image of a Doulton Countertop system with a ceramic filter inside.

Doulton® Filters for Pressure Systems

Selection of the most appropriate grade of candle allows filter performance to be matched to the requirements of the local water conditions.

 

Ultracarb® BioTect Ultra®

Sterasyl®
microfilter plus carbon block core and lead
removal media

Sterasyl® microfilter plus carbon block core & heavy metals with lead removal media

Filtration Rating

(% particulate filtration efficiency)

          Absolute (defined as > 99.99% )

          Nominal (defined as >99.99%)





0.9 micron

0.5 to 0.8 micron





0.9 micron

0.5 to 0.8 micron

Working Pressure (for pressure filter use)

          Minimum

          Maximum



10 psi

125 psi



10 psi

125 psi

Working Parameters

          Working temperature range

          Working pH range

          Suitable for use in Gravity filter systems

          Recommended change frequency



5 – 30 (°C)

5.5 – 9.5

No

6 months



5 – 30 (°C)

5.5 – 9.5

No

6 months

Flow Rate
Unrestricted Flow at 3 Bar Pressure up to

          Litres per minute
          US gallons per minute

To achieve maximum performance

          Litres per minute
          US gallons per minute




3.3
0.9



1.9
0.5




3.3
0.9



1.9
0.5

Capacity
Before replacement to guarantee performance

          Litres
          US gallons




2300
600




2300
600

Quality Approval

          WRAS (Water Regulations Approval Scheme)

          Turbidity reduction



Yes

>98%



Yes

>98%

Pathogenic Organisms
Bacteria Removal*

          E. Coli / Shigella / Typhoid / Klebsiella Terrigena

% Cyst Removal

          Cryptosporidium
          Giardia




>99.99%



>99.99%
>99.99%




>99.99%



>99.99%
>99.99%

Trace Organics Removal
Range of Pesticides+

     Insecticides
          Lindane @ 0.1ppb presence

     Herbicides
          Atrazine @ 1.2ppb presence

     Phenols
          TCP @ 1.2ppb presence

     Polyaromatic Hydrocarbons
          PAHs @ 0.2ppb presence

     Trihalomethanes
          Chloroform @ 150ppb presence





>85%


>85%


>50%


>95%


>50%





>85%


>85%


>50%


>95%


>50%

Enhanced Organics Removal
Pharmaceuticals+

     Lindane
          @ 2ppb presence

     Atrazine
          @ 9ppb presence

     Benzene
          @ 15ppb presence





N/A


N/A


N/A





Ave 70%


Ave 90%


Ave 87%

Inorganics Removal
Free Chlorine Removal

          2ppm presence to NSF Class 1 Std 42




94.2%




† >96%

Monochloramine Reduction

          3ppm presence

          2ppm presence



N/A

N/A



N/A

Ave 64%

Heavy Metals Removal

     Lead reduction pH6.5
          @ 150ppb presence to NSF Std 53

     Lead reduction pH8.5
          @ 150ppb presence to NSF Std 53

     Mercury reduction pH6.5
          @ 6ppb presence

     Cadmium reduction pH 6.5
          @ 30ppb presence




97.3%


99.5%


N/A


N/A




98.9%


†99.1%


Ave 90%


Ave 95%

Please note:

  1. This product is classed as a pesticidal device due to its filtration claims, individual state legislation may limit the availability of certain products, please check state law.
  2. +Internally generated test data.
  3. *Ceramics tested in HIS filter housing with a minimum of 5 log/100mls influent change.

 

 

Image of a British Berkefeld Gravity System with a ceramic filter on show.

British Berkefeld® Filters for Gravity Systems

Selection of the most appropriate grade of candle allows filter performance to be matched to the requirements of the local water conditions.

Ultra Sterasyl® Ultra Fluoride®

Sterasyl®
microfilter plus granular activated carbon and lead
removal media

Sterasyl® microfilter plus Fluoride and lead removal media with activated carbon

Filtration Rating

(% particulate filtration efficiency)

          Absolute (defined as > 99.99% )

          Nominal (defined as >99.99%)





0.9 micron

0.5 to 0.8 micron





0.9 micron

0.5 to 0.8 micron

Working Parameters

          Working temperature range

          Working pH range

          Suitable for use in Gravity filter systems

          Recommended change frequency



5 – 30 (°C)

5.5 – 9.5

Yes

6 months



5 – 30 (°C)

5.5 – 9.5

Yes

6 months

Flow Rate
To achieve maximum performance

          Litres per hour
          US gallons per hour




1.2 under gravity
0.3 under gravity




1.2 under gravity
0.3 under gravity

Capacity
Before replacement to guarantee performance

          Litres
          US gallons




1500
400




1500
400

Quality Approval

          WRAS (Water Regulations Approval Scheme)

          Turbidity reduction



Yes

>98%



Yes

>98%

Pathogenic Organisms
Bacteria Removal*

          E. Coli / Shigella / Typhoid / Klebsiella Terrigena

% Cyst Removal

          Cryptosporidium
          Giardia




>99.99%



>99.99%
>99.99%




>99.99%



>99.99%
>99.99%

Trace Organics Removal

Range of Pesticides+



>95%



N/A
PFOA & PFOS
Combined removal efficiency

          1.5ppb to less than or equal to 0.07ppb



95%



N/A

Enhanced Organics Removal

          Pharmaceuticals+
          Lindane @ 2ppb presence
          Atrazine @ 9ppb presence
          Benzene @ 15ppb presence



>99.5%
>99%
99.38%
>99%



NO DATA
NO DATA
NO DATA
NO DATA

Inorganics Removal
Free Chlorine Removal

          2ppm presence to NSF Class 1 Std 42




>99% under gravity




Ave 97.2%

Heavy Metals Removal

     Lead reduction pH 6.5
          @ 150ppb presence to NSF Std 53

     Lead reduction pH 8.5
          @ 150ppb presence to NSF Std 53

     Mercury reduction pH 6.5
          Ave 6ppb presence

     Arsenic reduction pH 6.5
          Ave 47ppb presence

     Barium reduction pH 6.5
          Ave 9834ppb presence

     Chromium reduction pH 6.5
          Ave 339ppb presence

     Selenium reduction pH 6.5
          Ave 102ppb presence

     Range of Metals pH 6.5
     Range of Metals pH 8.5




Ave 99.5%+


Ave 99.5%


N/A


N/A


N/A


N/A


N/A

81.5%
81%




Ave 95%


N/A


Ave 86.4%


Ave 97.4%


Ave 90%


Ave 99.4%


Ave 93.7%

N/A
N/A

 

Please note:

  1. This product is classed as a pesticidal device due to its filtration claims, individual state legislation may limit the availability of certain products, please check state law.
  2. +Internally generated test data.
  3. ^Tested as Hexachlorobenzene