UNI EN 1123-2 : 2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Dimensions
   5.1 General and tolerances
   5.2 Sockets
   5.3 Pipes
       5.3.1 General
       5.3.2 Pipe with one socket - Shape B 1
       5.3.3 Pipe with two sockets - Shape B 2
   5.4 Bends
       5.4.1 General
       5.4.2 Bend with large radius - Shape C 1
       5.4.3 Bend with small radius - Shape C 2
       5.4.4 Bend with stilling section - Shape C 3
       5.4.5 Offset pipe - Shape C 4
   5.5 Branches
       5.5.1 General
       5.5.2 Single branch - Shape D 1
       5.5.3 Reducing single branch - Shape D 11
       5.5.4 Reducing double branch - Shape D 21
       5.5.5 Reducing angular branch - Shape D 31
       5.5.6 Single transition branch - Shape D 12
   5.6 Connections
       5.6.1 General
       5.6.2 Connecting units for use with discharge sets
             of sanitary appliances
       5.6.3 Connecting units for use with other kinds of
             pipes
   5.7 Transition pipes
       5.7.1 General
       5.7.2 Transition pipe (eccentric) - Shape F 1
       5.7.3 Transition pipe (concentric) - Shape F 2
       5.7.4 Transition pipe (concentric) with extended
             spigot - Shape F 3
       5.7.5 Straight coupling - Shape F 4
       5.7.6 Insertion coupling with long socket - Shape F 5
   5.8 Traps
       5.8.1 P-trap - Shape G 1
       5.8.2 S-trap - Shape G 2
       5.8.3 Pipe bridge (V-trap) - Shape G 3
       5.8.4 Rainpipe trap (type A) - Shape G 4
       5.8.5 Rainpipe trap - Shape G 5
   5.9 Access pipes
       5.9.1 Access pipe with round cleaning hole - Shape H 1
       5.9.2 Access pipe with rectangular cleaning hole -
             Shape H 2 or with oval cleaning hole - Shape H 3
  5.10 Other fittings
6 Accessories
  6.1 Shear coupling
       6.1.1 Shear coupling A - Shape K 1
       6.1.2 Shear coupling B - Shape K 2
       6.1.3 Shear coupling with release - Shape K 3
       6.1.4 Shear coupling C - Shape K 4
  6.2 Plug
       6.2.1 Plug - Shape K 10
       6.2.2 Plug with extended spigot - Shape K 11
       6.2.3 Plug with screw top - Shape K 12
7 Seals
  7.1 General
  7.2 Seal for DN 40 to DN 200 - Shape M 1
  7.3 Seals - Shape M 2 for DN 250 and DN 300
  7.4 Elastomeric pressure ring for DN 250 and DN 300 -
       Shape M 3
  7.5 Transition seal from steel pipe special socket to
       plastic discharge pipe - Shape E 12 D
  7.6 Gasket for round cleaning hole in access pipes of
       shape H 1 - Shape H 1 D
  7.7 Gasket for rectangular cleaning hole - Shape H 2 D
       and gasket for oval cleaning hole - Shape H 3 D

Applies to pipes and fittings of longitudinally welded hot-dip galvanized steel pipes with spigot and socket for waste water systems.