Pipe Handling and Storage
Excavation and Bedding Preparation
Field Hydrostatic Testing
Special Installation Situations
The concrete and mortar linings and coatings specified in the AWWA C301 standard provide ample corrosion protection in most buried environments. There are, however, certain conditions where the ability of the concrete and mortar to provide a passivating environment around the embedded steel may need to be supplemented. Additional protective measures may be needed in these instances.
● High chloride environment
● Stray current interference
● Severe acid conditions
● Aggressive carbon dioxide
● Atmospheric exposure
● Connections to other pipelines
Tapping Pre-stressed Concrete Cylinder Pipe
Tapping PCCP for connecting outlets after a pipeline is installed is a common occurrence on most public works projects. Taps can easily be made on PCCP. In most cases, the tap can be done under pressure without interrupting service to customers.
|Fig. A: Strap-type tapping saddle assembly|
|Fig. B: Flange-type tapping saddle assembly|