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Various types of pipes for drainage are following. |
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1. Centrifugally Cast (Spun) Iron Pipes |
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2. Sand Cast Iron Pipes |
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3. Salt Glazed Stoneware Pipes |
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4. Cast Iron Rainwater pipes and fittings
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5. Unplasticized PVC Pipes |
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6. Asbestos Cement Pipes |
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7. Cement Concrete Pipes |
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CENTRIFUGALLY CAST (SPUN) IRON PIPES |
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They are used for soil, waste and rain water in drainage. |
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They are cheaper in cost. |
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They have high resistance to corrosion (rust).
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They are durable. |
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SAND CAST IRON PIPES
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They are used for soil, waste and rain water in drainage. |
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They are cheaper in cost.
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They have high resistance to corrosion (rust).
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They are durable. |
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SALT GLAZED STONEWARE PIPES |
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They are preferred for sewers except the grounds where supports are required. |
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They are mainly suitable for acid effluents. |
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CAST IRON RAINWATER PIPES
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They are used for soil, waste and rain water in drainage. |
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They are cheaper. |
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They have high resistance to corrosion (rust). |
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They are durable. |
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UNPLASTICIZED POLY VINYL CHLORIDE (UPVC)PIPES |
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They are durable. |
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They are of light weight.
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They possess higher strength than weight. |
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They are fast replacing cast iron pipes.
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They have high chemical resistance. |
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They have high corrosion resistance.
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They provide smooth flow.
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They are easy to install. |
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They require little maintenance due to fewer joints. |
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ASBESTOS CEMENT PIPES
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They are commonly used for house drainage systems. |
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They are not recommended for underground situations.
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They are extensively used for rainwater. |
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They should not be used to carry acid effluents or sewage.
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The life of asbestos cement pipes may be increased by lining inside the pipes through suitable coatings like polyester resins.
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CEMENT CONCRETE PIPES |
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When ventilated properly, cement concrete pipes with spigot and socket or collar joints present an alternative to glazed ware sewers over 150 mm diameter. |
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They should not be used to carry acid effluents or sewage. |
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Cement concrete pipes may be used for surface water drains in all diameters. |
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The life of cement concrete pipes may be increased by lining inside the pipe through suitable coatings like polyester resins.
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