Metal pipes exhibit the following advantages, strength, easy processing and are relatively economic. However, they exhibit varying poor resistance to corrosive liquids.
Conversely polymer based pipes and liners, based on rubber and plastics, whilst showing good resistance to many corrosive liquids generally lack the mechanical strength of metallic piping.
By applying polymeric liners to the internal surfaces of metallic pipes the advantages of both systems are highlighted.
Plastic lined pipes may be fabricated with a loose fitting liner or alternatively with a “locked in” liner. The latter system reduces the effect of differences in the coefficients of linear expansion (COTE) between metals and polymers.
RUBBER LINING APPLICATIONS
Common uses include:
- Spooling
- Tanks
- Transfer chutes
- Hydrocyclone Underflow and Overflow
- Flotation tanks
- Launders
- Pumps
- Pipelines
RUBBER SELECTION
Natural rubber sheeting is still the primary choice for slurry abrasion resistance, whilst it is widely used in blends with synthetic rubbers (SBR and BR) where impact and sliding abrasion resistance is required. For resistance to aggressive chemicals at elevated temperature the use of bromobutyl sheeting has performed in many applications.
It has been used in the mining industry for at least 90 years, to reduce the effects of abrasive wear and impact on plant and equipment made from metals and concrete. Additionally, it resists the corrosive effects of many of the chemicals utilised in mining.
FEATURES AND BENEFITS:
REDUCTION IN WET AND DRY ABRASION WEAR LOSS
HIGH ELASTICITY AND RESILIENCE
HIGH TEAR STRENGTH
RESISTANCE TO IMPACT
REDUCTION IN DOWN TIME
LONG SEVICE LIFE