Acrylonitrile Butadiene Styrene (ABS) - was first discovered in the 1940s in attempts to produce bulletproof plastic sheets during the last years of World War II. By the 1950s it was being made into pipes for use in the mining industry to transport slurries due to its high anti-abrasion characteristic. From wartime development for use by the military to general use by the water and waste industry, ABS pipe has catered to the various demanding needs of the industry it has served.
Acrylonitrile Butadiene Styrene (ABS) is a copolymer blended to give unrivalled properties. It is extremely versatile and suitable for a wide range of applications:
HIGH IMPACT STRENGTH
ABS has exceptional resistance to impact damage. This is due to its ductile property which is contributed by its Butadiene component.
This is the why AZEETA® ABS piping system can be used in critical applications where other types of plastics could not be considered because of their low impact strength.
Coating pipes with acrylic or water-based paint is effective in minimizing any effects of ultraviolet radiation
Prolonged exposure to sunlight results in a reduction of surface gloss. This degradation is confined only to the exposed surface and has minimal effects on the physical properties of the piping system. However, like any other materials exposed to sunlight, due consideration must be given to thermal expansion/contraction of the piping system.
Environmental stress cracking as commonly found in other plastics is minimized by taking the thermal expansion and contraction into consideration.
MODE OF FAILURE
ABS being a ductile material exhibits a mode of failure that resembles soft copper. Failure due to mechanical damage of hydrostatic over-pressure causes ductile distortion and tearing.
However, the localised nature of failure results in minimal loss of pipe contents and the option to effect quick repairs over a relatively small surface area.
In contrast, the failure mode of brittle material is accompanied by crack propagation and material fragmentation.
The butadiene phase in AZEETA® ABS offers good resistance to abrasion and erosion from aggressive slurries, which can rapidly damage steel or other traditional pipe materials. The chemical and impact resistance of ABS makes it an ideal choice for those corrosive, erosive environments.
ABS does not suffer from increased surface roughness of internal corrosion and provides a smooth bore for the life of the piping system.
Frictional factor of ABS pipes is reduced considerably as compared with metal pipes of rougher bores.
Internal corrosion also causes a reduced bore in steel systems, which further inhibits flow. The smooth bore of ABS pipes inhibits the formation of scale.
Internal diameter of AZEETA® ABS pipes will not be reduced over time, thereby eliminating the need to over size the pipes.
NON-TOXIC / TAINT-FREE
The ABS formulation does not contain harmful metallic stabilizers. All material used complies with food and toxicological requirements. It has been widely used for many years in piping systems for high purity water, medical preparations, food products and soft drinks.
AZEETA® ABS piping system is ideal for potable cold water. It conforms to British Standard 6920:1996 “Suitability of non-metallic products for use in contact with potable water intended for human consumption”.