DIN EN 969:2009 Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods; English version of DIN EN 969:2009-07
This European Standard specifies the requirements and associated test methods applicable to ductile iron
pipes, fittings, accessories and their joints used for the construction of pipelines outside buildings:
-- to convey air or combustible gases (e.g. natural gas or town gas) at pressures up to 16 bar;
-- to be installed below or above ground.
NOTE 1 A combustible gas is a gas or any fuel that is in gaseous state at a temperature of 15 ~C at a pressure of I bar.
This European Standard applies to pipes, fittings and accessories which are:
-- manufactured with socketed, flanged or spigot ends;
-- normally delivered externally and internally coated;
-- suitable for gas temperatures between - 15 ~C and 50 ~C.
This European Standard covers pipes, fittings and accessories cast by any type of foundry process or
manufactured by fabrication of cast components, as well as corresponding joints, in a size range extending
from DN 40 to DN 600 inclusive.
This European Standard specifies requirements for materials, dimensions and tolerances, mechanical
properties and standard coatings of ductile iron pipes and fittings. It also gives performance requirements for
all components including joints. Joint design and gasket shape are outside the scope of this European
Standard.
NOTE 2 In this European Standard, all pressures are relative pressures expressed in bars (100 kPa = 1 bar).
DIN EN 969:2009 Referenced Document
EN 10002-1 Metallic Materials - Tensile Testing - Part 1: Method of Test at Ambient Temperature
EN 1092-2 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges*, 2023-11-29 Update
EN 545:2006 Ductile iron pipes@ fittings@ accessories and their joints for water pipelines - Requirements and test methods
EN 681-1 Elastomeric seals Material requirements for pipe joint seals used in water and drainage applications Part 1: Vulcanized rubber (Incorporates Amendments A1: 1998 and A2: 2002; Incorporating Corrigendum August 2002; Incorporates Amendment A3: 2005)
EN 682 Elastomeric seals - Materials requirements for seals used in pipes and fittings carrying gas and hydrocarbon fluids
EN ISO 4016 Fasteners - Hexagon head bolts - Product grade C (ISO 4016:2022)*, 2022-07-20 Update
EN ISO 4034 Hexagon regular nuts (style 1) - Product grade C - Technical Corrigendum 1 (ISO 4034:2012/Cor 1:2013)*, 2013-05-01 Update
EN ISO 6506-1 Metallic materials - Brinell hardness test - Part 1: Test method*, 2014-09-01 Update
EN ISO 7091 Plain Washers - Normal Series - Product Grade C ISO 7091:2000
DIN EN 969:2009 history
2009DIN EN 969:2009-07 Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods; German version EN 969:2009
2009DIN EN 969:2009 Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods; English version of DIN EN 969:2009-07
1970DIN EN 969:1995 Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods