Rubber lined pipes are steel pipes lined with a rubber coating primarily to prevent corrosion and/or erosion damage. A wide range of rubbers and elastomers are available for lining vessels, tanks and piping. Rubbers can also be made with anti-static properties to give a low surface electrical resistance.
The following rubber types are used for lining purposes (classification according to ASTM D 1418):
- Isoprene Or Natural Rubber (NR)
- Synthetic Isoprene Rubber (IR)
- Styrene-Butadiene Rubber (SBR)
- Chloroprene Rubber (CR)
- Butyl Rubber (IIR)
- Broom-Butyl Rubber (BIIR)
- Chloro-Butyl Rubber (CIIR)
- Nitrile-Butadiene Rubber (NBR)
- Ethylene Propylene Rubber (EP, EPDM)
- Urethane Rubber (UR)
- Chlorosulphonated Polyethylene (CSM)
- Fluoro Elastomer (FKM)
Where is rubber lining used?
Rubber linings are mainly used for protection against corrosion and/or erosion damage. A wide range of rubbers and elastomers are available for lining vessels, tanks and piping. Rubbers can also be made with anti-static properties to give a low surface electrical resistance.
What does a rubber liner do?
Rubber Lining is a very niche skill. A rubber liner, lines interior of tanks, valves, pipes, and similar articles with rubber sheeting to prevent corrosion of vessel, and to minimize contamination, shock, ignition, or explosion hazards to contents.
How do you inspect a rubber liner?
To inspect a rubber-lined tank, first, you must empty the vessel, neutralizing and rinsing it thoroughly. It should be aired out for 24 hours or overnight to remove fumes. Before entering the tank, test oxygen levels to be sure that toxic fumes have escaped.
Why are pipes rubber-lined?
Rubber-lined pipes are used to transport Abrasive Slurry solutions, Corrosive Chemicals, and many other liquids from one place to another. Without the rubber lining, the pipes would corrode, causing leakages and losses.
What kind of rubbers are used for Rubber Lining?
A wide range of rubbers and elastomers are available for lining vessels, tanks, and piping. Rubbers can also be made with anti-static properties to give a low surface electrical resistance. Hard rubbers, i.e. hardness greater than Shore D 60, can only be applied by autoclave vulcanization, and therefore hard rubber lining is restricted to small equipment or components. Only soft rubbers can be applied on site.
Hard rubber linings can only be applied to rigid structures and they are also sensitive to large temperature fluctuations. Soft rubber linings remain elastic over a large temperature range, and consequently, they can accommodate major deformation, vibrations, and significant temperature changes.