OPERATION AND MAINTENANCE MANUAL 05/2015
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2.4 REFERENCE STANDARDS
PN-EN 1074-1: 2002
Valves for water supply. Fitness for purpose requirements and appropriate
verification tests. General requirements
PN-EN 1074-3: 2002
Valves for water supply. Fitness for purpose requirements and appropriate
verification tests. Check valves.
PN-89/H-02650
Valves and pipelines. Pressure and temperature ratings.
PN-EN 1092-2: 1999
Flanges and their joints. Circular flanges for pipes,
valves, fittings and accessories, PN designated. Cast iron flanges.
PN-EN 19: 2005
Industrial valves. Marking of metallic valves
PN-EN 12266-1: 2012
Industrial valves. Testing of metallic valves. Pressure tests, test procedures
and acceptance criteria. Mandatory requirements.
PN-EN 558: 2012
Industrial valves. Face-to-face and centre-to-face dimensions of metal valves
for use in flanged pipe systems. PN-designated valves.
PN-EN ISO 6708: 1998
Pipework components. Definition and selection of DN (nominal size).
PN-EN 1559-1: 2011
Founding. Technical conditions of delivery. General.
PN-EN 1563: 2012
Founding. Spheroidal graphite cast irons.
PN-EN 1370: 2012
Founding. Surface roughness inspection by
visual tactile comparators.
PN-ISO 965-1: 2001
General purpose ISO metric threads. Tolerances. Principles and basic data.
PN-EN ISO 4762: 2006
Hexagon socket head cap screws.
DIN 6912: 2006
Hexagon socket low head cap screws.
PN-EN 10204: 2006
Metallic products. Types of inspection documents.
PN-ISO 1629: 2005
Rubbers and latices. Nomenclature.
PN-EN ISO 1872-1: 2000
Plastics. Polyethylene (PE) moulding and extrusion materials. Designation
system and basis for specifications.
PN-EN ISO 1873-1: 2000
Plastics. Polypropylene (PP) moulding and extrusion materials. Designation
system and basis for specifications.
PN-EN ISO 1874-1: 2010
Plastics. Polyamide (PA) moulding and extrusion materials. Designation
system and basis for specification.
PN-EN ISO 12944-5: 2009
Paints and varnishes. Corrosion protection of steel structures by protective
paint systems. Protective paint systems.
2.5 ORDERING INFORMATION
Water supply system valves are specific purpose industrial valves, therefore orders must include:
- part number (P/N, equal to the product type);
- intended use, e.g. for sewage;
and:
- nominal diameter, acc. to PN-EN ISO 6708: 1998
- nominal pressure, acc. to PN-89/H-02650
- type of body material, acc. to PN-EN 1563: 2012
- maximum operating temperature, acc. to PN-89/H-02650
2.6 PRODUCTION AND ACCEPTANCE
The flange-to-flange check flap valves are manufactured and accepted in accordance with
PN-EN 1074-3: 2002 (Valves for water supply. Fitness for purpose requirements and appropriate verification
tests. Check valves) and PN-EN 12266-1: 2007 (Industrial valves. Testing of valves). All valves are leak tested
(100%). The tests include external body tightness and closing tightness at high and low pressure values.
2.7 MARKINGS
The valve marking is regulated by the following standards: PN-EN 19: 2005, PN-EN-1074-1: 2002.
