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BS EN 12050-4:2015

BS EN 12050-4:2015

$167.15

Wastewater lifting plants for buildings and sites – Non-return valves for faecal-free wastewater and wastewater containing faecal matter

Published By Publication Date Number of Pages
BSI 2015 34
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This European Standard applies to non-return valves used for faecal-free wastewater and wastewater containing faecal matter lifting plants. This Standard specifies general requirements, basic construction and testing principles together with information on materials and the relevant assessment and verification of constancy of performance.

PDF Catalog

PDF Pages PDF Title
4 Contents Page
7 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
8 3.2 Symbols and abbreviations
3.2.1 Symbols
3.2.2 Abbreviations
4 Materials and product characteristics
4.1 Materials
4.2 Mechanical resistance
4.3 Effectiveness
4.3.1 General
4.3.2 Connections
9 4.3.3 Solids passage
4.3.4 Cleanability
4.3.5 Nominal pressure of non-return valves
4.4 Internal leakage
4.5 Reaction to fire
4.5.1 General
10 4.5.2 Non-return valves classified as Class A1 without the need for testing
4.5.3 Non-return valves classified according to test results
4.5.3.1 Principle
4.5.3.2 Sizes and mounting of the test specimen
4.6 Durability
4.6.1 General
11 4.6.2 Durability of watertightness
4.6.3 Durability of effectiveness
4.6.4 Durability of mechanical resistance
4.7 Noise level
4.8 Dangerous substances
5 Testing
5.1 General
12 5.2 Effectiveness testing
5.2.1 Faecal-free wastewater
5.2.2 Wastewater containing faecal matter
5.2.3 Internal leakage
5.2.4 Pressure testing
5.2.5 Testing of backwash devices
6 Assessment and verification of constancy of performance – AVCP
6.1 General
6.2 Type testing
6.2.1 General
13 6.2.2 Test samples, testing and compliance criteria
14 6.2.3 Test reports
6.3 Factory production control (FPC)
6.3.1 General
6.3.2 Requirements
6.3.2.1 General
15 6.3.2.2 Equipment
6.3.2.3 Raw materials and components
16 6.3.2.4 Traceability and marking
6.3.2.5 Controls during manufacturing process
6.3.2.6 Product testing and evaluation
6.3.2.7 Non-complying products
17 6.3.2.8 Corrective action
6.3.2.9 Handling, storage and packaging
6.3.3 Product specific requirements
18 6.3.4 Procedure for modifications
7 Marking, labelling and packaging
7.1 Manufacturer’s declaration
7.2 Marking
19 Annex A (informative)Recommended materials
20 Annex ZA (informative)Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation

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BS EN 12050-4:2015
$167.15