ECISS/TC 29/SC 3 - Fittings

TC - Small editorial improvements and correction in 12.2.2 and replacement of Figure B.3 in B.4.5

ISO 1179-3:2007 specifies dimensions, performance requirements and test procedures for non-adjustable and adjustable light-duty (L series) stud ends with ISO 228-1 threads with sealing by O-ring with retaining ring (types G and H, respectively).

ISO 1179-4:2007 specifies dimensions, performance requirements and test procedures for stud ends with ISO 228-1 threads and metal-to-metal sealing for general use only. These stud ends should not be used for leak-free hydraulic fluid power applications.

1.1   This European Standard specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of austenitic and austenitic-ferritic (duplex) stainless steel which are intended for pressure and corrosion resisting purposes at room temperature, at low temperature or at elevated temperatures.
It specifies:
   the type of fittings;
   type A (see 7.2)
   type B (see 7.3)
   the steel grades;
   the mechanical properties;
   the dimensions and tolerances;
   the requirements for inspection and testing;
   the inspection documents;
   the marking;
   the handling and packaging.
NOTE   In the case of a harmonised supporting standard for materials, presumption of conformity to the Essential Requirement(s) (ESRs) is limited to technical data of materials in the standard and does not presume adequacy of the material to a specific item of equipment. Consequently the technical data stated in the material standard should be assessed against the design requirements of this specific item of equipment to verify that the ESRs of the Pressure Equipment Directive (PED) are satisfied.
1.2   Unless otherwise specified in this European Standard the general technical delivery requirements in EN 10021 apply.

ISO 6149-3:2006 specifies dimensions, performance requirements and test procedures for metric adjustable and non-adjustable light-duty (L series) stud ends and O-rings.
Stud ends in accordance with ISO 6149-3:2006 may be used at working pressures up to 40 MPa (400 bar) for non-adjustable stud ends and 31,5 MPa (315 bar) for adjustable stud ends. The permissible working pressure depends upon the stud end size, materials, design, working conditions, application, etc.

ISO 6149-2:2006 specifies dimensions, performance requirements and test procedures for metric adjustable and non-adjustable heavy-duty (S series) stud ends and O-rings.
Stud ends in accordance with ISO 6149-2:2006 may be used at working pressures up to 63 MPa (630 bar) for non-adjustable stud ends and 40 MPa (400 bar) for adjustable stud ends. The permissible working pressure depends upon the stud end size, materials, design, working conditions, application, etc.

Deletion of the Clause 12 "Quality assurance system" and creation of an informative annex with the text of Clause 12.

This European standard specifies requirements for threaded fittings of nominal sizes from DN 6 to DN 150 inclusive, made out of welded or seamless steel tubes, forging and rolled bars. It is applicable to those threaded steel pipe fittings that are used in the transportation and distribution of liquid or gas.

Specifies dimensions for ports with ISO 261 threads and elastomeric (type E) or metal-to-metal (type B) sealing for general use and in fluid power applications with the stud ends detailed in ISO 9974-2 and ISO 9974-3. It also specifies test methods and the designation of these ports.

Specifies dimensions, performance requirements and test procedures for heavy-duty (S series), light-duty (L series) and extra-light-duty (LL series) stud ends with ISO 261 threads and metal-to-metal sealing. It also specifies the designation of these stud ends.

Specifies dimensions, performance requirements and test procedures for heavy-duty (S series) and light-duty (L series) stud ends with ISO 261 threads and the elastomeric sealing that is used with them. It also specifies the designation of these stud ends and their elastomeric sealing.

This European Standard specifies requirements for steel butt-welding fittings (elbows and return bends, concentric and eccentric reducers, equal and reducing tees, dished ends and caps) made of wrought carbon steel and delivered without specific inspection. The fittings described in this European Standard do not fulfil specific design requirements; consequently they cannot be considered as conforming to the Essential Requirements of the Pressure Equipment Directive (Directive 97/23/EC of 29.05.1997).

This standard specifies the requirements for the design, performance and testing of fittings made of malleable cast iron (see also clause 5 Materials) with compression ends for polyethylene piping systems. It applies to piping systems in polyethylene (PE) materials for different application fields, such as water and gas supply, water distribution, irrigation and gaseous fuel systems.

Migrated from Progress Sheet (TC Comment) (2000-07-10): No ENQ needed based on Res COCOR 3/1997 (CC/970730) ++ UAP of 4 months (CC/971118)
2020-01-20: Originator of XML version: NEN (on behalf of NEN, ASI, DS, SFS, SIS, SN)

This standard specifies the requirements for the design and performance of threaded pipe fittings in malleable cast iron. These fittings are for general purposes for the transmission of fluids and gases up to the limits of pressure and temperature specified in this standard. They are intended for the connection  of elements threaded in accordance with ISO 7-1, sizes 1/8 to 6. For use in conditions outside the pressure and temperature limits specified, reference shall be made to the manufacturer.

This Part of EN 10253 specifies the technical delivery requirements for seamless and welded butt welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of carbon and alloy steel which are intended for pressure purposes at room temperature, at low temperature or at elevated temperatures, and for the transmission and distribution of fluids and gases.
It specifies:
-   type of fittings ;
-   type A : Butt-welding fittings with reduced pressure factor ;
-   type B : Butt-welding fittings for use at full service pressure ;
-   steel grades ;
-   mechanical properties ;
-   dimensions and tolerances ;
-   requirements for inspection and testing ;
-   inspection documents ;
-   marking ;
-   protection and packaging.
NOTE   In the case of a harmonised supporting standard for materials, presumption of conformity to the ESRs is limited to technical data of materials in the standard and does not presume adequacy of the material to a specific item of equipment. Consequently it is essential that the technical data stated in the material standard be assessed against the design requirements of this specific item of equipment to verify that the ESRs of the PED are satisfied.

ISO 6149-1:2006 specifies dimensions for metric ports for use with the adjustable and non-adjustable stud ends detailed in ISO 6149-2:2006 and ISO 6149-3:2006.
Ports in accordance with ISO 6149-1:2006 may be used at working pressures up to 63 MPa (630 bar) for non-adjustable stud ends and 40 MPa (400 bar) for adjustable stud ends. The permissible working pressure depends upon port size, materials, design, working conditions, application, etc. See ISO 6149-2:2006 and ISO 6149-3:2006 for pressure ratings.

2009-02-05 SJ: EN ISO 8434-4:2000 must be withdrawn once this AC is published.
20090121 - EN ISO 8434-1:2007 should have revised EN ISO 8434-4:2000 as well as the EN ISO 8434-1:1997.  This corrigendum is to rectify the matter.
ISO - Problem with the superseding note (unclear information)

ISO 8434-1:2007 specifies the general and dimensional requirements for 24° cone connectors using cutting ring and O‑ring seal cone (referred to as DKO) suitable for use with ferrous and non‑ferrous tubes with outside diameters from 4 mm to 42 mm inclusive. These connectors are for use in fluid power and general applications within the limits of pressure and temperature specified in ISO 8434-1:2007.
It also specifies a performance and qualification test for these connectors.

ISO 1179-1:2007 specifies dimensions for ports with ISO 228-1 threads for use with non-adjustable stud ends shown in ISO 1179-2, ISO 1179-3 and ISO 1179-4 and with adjustable stud ends shown in ISO 1179-3.

ISO 1179-2:2007 specifies dimensions, performance requirements and test procedures for heavy-duty (S series) and light-duty (L series) stud ends with ISO 228-1 threads and the elastomeric sealing (type E) that is used with them.

ISO - Taking over of an ISO Technical Corrigendum

Migrated from Progress Sheet (TC Comment) (2000-07-10): ISO/TC 131/SC4 Secretary (Ms. Boehme)informed us that the revision of ISO 8434- ++ 5:1995 is given a new number "ISO/CD 19879"(SJ/000406)