Joint Types
ACMC offers a wider range of joint types than any other pipeline material.
Joint types from push on type joints to various types of mechanical joints, including self restrained dismantling joints to self anchoring joints and adaptors for flange connections.
Adapters can also be supplied to allow Ductile Iron pipes made to different standards for use in existing pipelines.
These innovations allow designers and constructors to overcome the need for special fittings that are required to be fabricated. It also eliminates the need for site welding which can introduce a joint that may be suspect during the life of the pipeline system.
Mechanical joints allow the laying of pipes and fittings with compatible flanged or push on joints, to suit the differing pipeline thrusts along the alignment of the pipe. These joints reduce the requirement for large thrust blocks and allow the freedom to lay the Ductile Iron pipe through creek crossings and at points along the alignment that have vertical and horizontal profile changes.
The types of jointing available are:
- T-type flexible spigot and socket joint
- K-type self anchored mechanical flexible joint
- 2GS joint flexible joint
- TF self anchorage type joint
- SIT anti slip joint
- KFM self restrained dismantling joint
- NT type anti-thrust joint
- TJ type self anchored joint
- VJFA flange to spigot joint
The following photographs show installation details of large diameter Ductile Iron pipe and some of the innovations at work at the construction site.
The above photograph is a cutaway of a mechanical joint
on a large Ductile Iron pipe.
This photograph shows the connection of a steel pipe to a Ductile Iron pipe.
This photograph is an example of allowable defection in the RRJ
of the pipe.
The installation of pipes for water diversion from Yellow River in Taiyuan
with a DN 2000 pipe in Wuan.
The installation of self anchorage connectors of large diameter DICL pipes.
