My work Blog

Nearing the end. Pipe is finally being laid towards Millers Pond. There is only a couple of hundred metres to go.

The 1.8m diameter steel pipes are butted into each other and then welded inside and out. They are then tested by injecting nitogen into the joint. If the pressure holds then the welds pass.

After several pipes have been welded each joint is grit blasted inside and out. They are then painted with two coats of epoxy paint. This is checked with an electrometer to ensure it is the right thickness (in microns).

The 85t excavator and man grit blasting help to give some scale.

 

The pipeline in progress.

The pipes are upto 1.8m diameter and 12m long. Each joint is welded twice, once inside and the other outside. This is then pressure checked with Nitrogen (as it is an inert gas).

You can see the pipeline stretches some distance as you can see.