Steel casing pipes are used underground to protect or provide an additional barrier for materials being carried. They can enclose utility lines or protect electrical or fiber-optic cables. The most commonly used type is ASTM A-252, which does not require strict inspection requirements. Casing spacers are used to keep multiple lines separate.
Steel casing is a type of pipe that typically runs underground. It can be used to protect the elements inside the tube or to provide an additional barrier between the matter in the tube and the earth. Another name for these products is casing pipes.
The pipes are usually placed in the ground in separate segments and then welded together. In some cases, the pipe can be threaded through a pre-existing hole or tunnel. The latter method is usually necessary because the hole was drilled, rather than dug out of ground level, by an obstruction such as a road or river.
Steel jacketed pipe is available in a variety of sizes and grades. It is classified by both the diameter of the inside of the pipe and the thickness of the pipe walls. Many grade descriptions begin with the prefix ASTM, which stands for American Society for Testing Materials. The ASTM is an international organization that sets standards for a wide range of building materials, including pipes. There are some localities where an ASTM grade is a legal requirement for building materials.
The most commonly used type of steel casing pipe is ASTM A-252. It is desirable to many builders because it tends to be a cost-effective hose type that does not require strict adherence to inspection requirements like many other hose types. For example, ASTM A-252 does not require hydrostatic testing, which is a method used to find the source of leaks.
A steel casing is often used to provide protection or act as an additional barrier around the liquid being carried. It can help prevent water contamination from outside elements. The pipe can also prevent fuels such as oil and gas from leaking into the ground.
Protecting a wide variety of underground lines and cables is another use of steel casing pipe. They can enclose utility lines or help protect electrical or fiber-optic cables. Often different types of cables or lines are inserted into the same pipe network.
When multiple lines share a steel casing, they are usually secured to the side of the pipe with casing spacers. This helps keep the lines separate. The spacers are usually made of steel or plastic, and each end of the tube is usually protected with gaskets made of a flexible material, such as rubber.
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