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EN 14743:2005+A1:2007

Current
Current

The latest, up-to-date edition.

Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing
Published date

06-13-2007

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Softener specification
  4.2 Quality of materials and chemicals
      4.2.1 Cation exchange resin
      4.2.2 Regenerating salt
  4.3 Design and manufacturing specifications
      4.3.1 Resistance to hydrostatic pressure
      4.3.2 Resistance to cyclic pressure
      4.3.3 Minimum and maximum operating pressure
      4.3.4 Resistance to temperature
      4.3.5 Electrical safety
      4.3.6 Salt tank
      4.3.7 Continuity of supply during regeneration
      4.3.8 Protection against backflow and infiltration of brine
      4.3.9 Noise level
      4.3.10 Air vent
      4.3.11 End connections
      4.3.12 Drain connections
  4.4 Operating specifications
      4.4.1 Initiation of regeneration
      4.4.2 Brining efficiency
      4.4.3 Regeneration water
      4.4.4 Quality of treated water after regeneration
      4.4.5 Continuous flow rate
      4.4.6 Pressure drop
      4.4.7 Exchange capacity
  4.5 Installation specifications
      4.5.1 Connection to mains water supply and existing pipe network
      4.5.2 Drain
      4.5.3 Electrical connection
5 Labelling
  5.1 Identification of equipment
  5.2 Safety labelling
6 Technical documentation
7 Test methods
  7.1 Test conditions
      7.1.1 Ambient air
      7.1.2 Water and salt
      7.1.3 Test rig
      7.1.4 Analysis
  7.2 Cation exchange resin
  7.3 Technical documentation
  7.4 Manufacturing tests
      7.4.1 Resistance to hydrostatic pressure
      7.4.2 Resistance to cyclic pressure
      7.4.3 Continuity of water supply
      7.4.4 Protection against backflow
      7.4.5 Air displacement
  7.5 Operating characteristics
      7.5.1 General
      7.5.2 Nominal flow rate
      7.5.3 Regenerations
      7.5.4 Exchange capacity
      7.5.5 Brine efficiency
      7.5.6 Regeneration water
      7.5.7 Quality of treated water after a regeneration
Annex A (normative) Installation, operation and maintenance
Bibliography

This European Standard specifies requirements relating to the construction and mode of operation and relevant methods of testing of automatic, salt-regenerated, cation exchange softeners for drinking water installations inside buildings which are permanently connected to the mains supply.Until EAS comes into force, the current national regulations remain applicable.NOTEProducts intended for use in water supply systems should comply, when existing, with national regulations and testing arrangements that ensure fitness for contact with drinking water. The Member States relevant regulators and the EC Commission agreed on the principle of a future unique European Acceptance Scheme (EAS) which would provide a common testing and approval arrangement at European level.If and when the EAS is adopted, European Standards on products will be amended by the addition of an Annex Z/EAS under Mandate M/136 which will contain formal references to the testing, certification and product marking requirements of the EAS.

Committee
CEN/TC 164
DevelopmentNote
2005 Edition Re-Issued in June 2007 & incorporates AMD 1 2007. (06/2007)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

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