Plumbing is a system which includes supply of clean water at preferred locations in house or building. It takes away sewage or waste water hygienically. The Plumbing system is also divided into the water supply system and sewerage system. Both systems include series of pipes that convey both the water and waste water.
Among the plumbing pipes, cast iron pipes (CI Pipes) have been popular since the 19th century. They have a good compressive strength so that they can resist the earth pressure easily. They are extremely corrosion resistant and therefore, they are also used to transmit water. They are brittle and hence they are hard to cut and fit.
Let’s understand the basic information of Cast Iron LA Pipe.
Classification of Cast Iron Pipes Based On Their Class
- Class LA
- Class A
- Class B
- Class C
- Class D
- Class E
Class LA cast Iron Pipes have been taken as the basis for developing the series of pipes. Class A cast iron pipes allow a 10 % increase in thickness over class LA cast iron pipes. Class B cast iron pipes allow a 20 % increase in thickness over Class LA cast iron pipes. With special uses, Classes C, D, or E may be obtained by allowing corresponding increases of thickness of 30, 40, or 50 % respectively.
As long CI pipes are used as reliable material for sewerage ‘force mains’, mainly because of its good compressive strength for resisting high earth load & good corrosion resistance. The suitability of CI pipe for sewage application in light of an assortment of design requirements are discussed below:
#1: Structural Stability Of Cast Iron Pipes
Good compressive strength gives it good structural constancy for resisting high earth load. However, CI pipes being brittle in nature are sensitive to point loading, and impact loading. CI pipes are not recommended for use under dynamic loading component in their use, e.g. under major carriage ways, or where there is higher risk of ground movement or subsidence. Being the CI pipes of brittle material should be handled carefully during laying.
#2: Hair Line Crack In Cast Iron Pipe
During the management and installation CI pipes, the pipes sometimes develop minute hair-cracks which are not clearly noticeable. The failure/ bursting happen when the pipeline is charged or pressure is tested. It is suitable to check CI pipes for hair-crack before lying.
#3: Cast Iron Pipe for high Pressure Application
Because of low tensile strength, the pressure bearing capacity of CI pipes are very low compared to other metallic pipes such as MS or DI. So, for high pressure applications or where there is high probability of sudden positive pressure build up due to surge, CI pipes should be avoided.
We ‘Supra Group’ are the leading wholesale trader of Cast Iron LA Pipe. Like Electrosteel Iron Pipe, we are known to have high quality material in all over India. We direct all our activities to cater the expectations of customers by providing them outstanding quality products as per their gratifications.