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Ductile Iron Pipes - Tooth Gasket Restrained Joints
Features
- Can be used on any push-on joint socket and spigot pipe
- Needs specially manufactured steel teeth inserted gasket in place of a normal gasket
- The gasket has to be set in the socket groove like any other gasket
- Like any other pipe, the steel teeth allow the spigot to be pushed into the socket
- Once the spigot is fully inserted, the teeth hold the spigot and restrict it from coming out
- This specially designed gasket performs the dual role of water sealing and restraining
DN (mm)
|
Allowable Angular Deflection (Degree)
|
PFA (bar)
For Class K9 or Equivalent class
|
80
|
5°
|
23
|
100
|
5°
|
23
|
125
|
5°
|
22
|
150
|
5°
|
18
|
200
|
4°
|
16
|
250
|
4°
|
16
|
300
|
4°
|
16
|
350
|
3°
|
16
|
400
|
2°
|
16
|
450
|
2°
|
13
|
500
|
2°
|
11
|
600
|
2°
|
10
|
# To use this system for other class of pipes, the manufacturer may be contacted