2
1 Geberit HDPE and Geberit Silent-db20 systems – general information 4
1.1 Geberit HDPE overview 4
1.2 Geberit Silent-db20 overview 5
1.3 Features and benefits of Geberit drainage systems 6
1.4 Pipe specification Geberit HDPE 10
1.5 Pipe specification Geberit Silent-db20 11
2 Characteristics and chemical resistance 12
2.1
Chemical resistance – The significance of pH values
12
3 Geberit Silent-db20 systems – acoustics
1
3
3 Best practice for acoustics
1
3
3.1 Additional acoustic products
1
4
4 Jointing methods
16
4.1 Butt weldin
g
1
7
4.1.1 Butt welding by hand
1
8
4.1.2 Butt welding by machine
1
9
4.2 Electrofusion coupling
2
0
4.2.1 Electrofusion coupling (for pipes ø 40 to 160mm)
2
1
4.2.2 Electrofusion coupling (for pipes ø 200 to 315mm)
2
2
4.2.3 Conversion to a slip coupling
2
3
4.3 Ring-seal sockets
2
4
4.4 Expansion fittings for Geberit HDPE
2
4
4.5 Flanged joint
2
5
4.6 Screw-threaded joints
2
6
4.6.1 Screw-threaded joint with flange bushing
2
6
4.7 Jointing for Geberit Silent-db20
27
4.8 Expansion fittings for Geberit Silent-db20
27
4.9
J
ointing Geberit drainage systems to other materials using adapters 29
Drainage Systems Installation Guide
Contents