Case Study 40 – Why use ABS pipe?
ABS pipe main attributes are –
1: The high impact strength compared to PVC pipe
2: Corrosion resistance
3: Size range
ABS which stands for Acrylonitrile Butadiene styrene has a huge impact strength compared to PVC, you can hit ABS with a sledge hammer and it will not shatter, you can drop it and it will not smash.
ABS is mainly used in the chemical field as it is highly resistant to many chemicals, if there are hydro carbons in the ground then ABS would be a better choice than PVC as PVC breaks down when coming in contact with Hydro Carbons.
With the larger range that ABS is manufactured, larger bores of up to 750mm can be installed, PVC is mainly 375mm dia max.
ABS pipe can be joined together in a couple of ways; it can be glued together using standard couplings. Note – Special ABS glue has to be used, or it can be threaded – male and female flush threaded – this gives it instant strength, and on many projects in Queensland we have machined a flush taper joint that is glued and then a couple of stainless screws are screwed in to obtain instant strength so the pipe can be lowered continuously.
ABS can be slotted in the same patterns as PVC pipe, but cannot be slotted in the finer slots as we have to use special blades for ABS pipe.
In the next article we will give you reasons why ABS is difficult to use.