NBN EN 1124-3 : 2008

Foreword
1 Scope
2 Normative references
3 Definitions
4 Symbols
5 Dimensions
    5.1 General and tolerances
    5.2 Sockets
    5.3 Pipes
          5.3.1 Pipe with one socket - Shape B 1
          5.3.2 Pipe with two sockets - Shape B 2
    5.4 Bend
          5.4.1 Bend with large radius - Shape C 1
          5.4.2 Bend with small radius - Shape C 2
          5.4.3 Bend with stilling section - Shape
                  C 3
    5.5 Branches
          5.5.1 Single branch - Shape D 1
          5.5.2 Reducing single branch - Shape D 11
          5.5.3 Reducing double branch - Shape D 21
    5.6 Connecting units
          5.6.1 Connecting units for the use with
                  discharge sets of sanitary appliances
                  (angular bend 90 degree) - Shape E 1
          5.6.2 Connecting units for use with other
                  kinds of pipes
    5.7 Transition pipe (concentric) - Shape F 2
    5.8 Repair coupling/double socket - Shape F 4
    5.9 Insertion coupling with long socket - Shape
          F 5
    5.10 Trap - G 1
    5.11 Access pipes
          5.11.1 Access pipe with round cleaning hole
                  - Shape H 1
          5.11.2 Access pipe with rectangular cleaning
                  hole - Shape H 2 or oval cleaning hole
                  - Shape H 3
    5.12 Shear coupling
          5.12.1 Shear coupling A - Shape K 1
          5.12.2 Shear coupling B - Shape K 2
6 Other fittings
7 Seals
    7.1 Seals for DN 40 to DN 200 - Shape M 1
    7.2 Transition seal from steel pipe special socket
          to plastic drain pipe - Shape E 12 D
    7.3 Gasket for round cleaning holes of access pipes
          of Shape H 1 - Shape H 1 D
    7.4 Gasket for rectangular cleaning holes - Shape
          H 2 D or gasket for oval cleaning holes - Shape
          H 3 D

Applicable to pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket, for waste water systems. Defines dimensions and tolerances for pipes, fittings, pipe connectors and seals of the System X and establishes a system of designations for different pipe and fittings that comply with the stated requirements.