How to choose GI Round Pipe

When selecting a GI round pipe, numerous variables are in play. The primary aspect to evaluate is where the pipe is intended to be utilized. GI round pipe is most commonly employed for structural purposes, like scaffolds, fencing, and handrails; but it also has applications in water and sewer infrastructure, HVAC systems, and electrical conduit. Consequently, size, wall thickness, and length must be selected with the application in mind, as the material must likewise correspond with its purpose.

GI round pipe is either made of galvanized steel or aluminum, the former being the most popular choice due to its economical advantages. This material is usually used for pipelines involving water and sewer systems, HVAC, and electrical conduit. Due to its lightweight and corrosion-resistant properties, aluminum is commonly used for marine and coastal applications. For cases where corrosion-resistance is imperigible, stainless steel is the best choice to make albeit its higher cost; especially relevant in sectors such as food processing or pharmaceuticals.

The pipe’s wall thickness needs to be determined with its intended purpose in mind. Typically, a standard wall thickness suffices; but when higher pressures are involved, as with water and sewer lines, added thickness is required. Length is also an important factor – a handrail’s piping will be much longer than that used for a fence.

After setting out what the pipe shall be used for and picking the material to craft it, it is time to select the size. Common sizes for GI round piping are 1/2, 3/4, 1 and 1-1/2 inches. The diameter ought to be selected in relation to the quantity of fluid or material that will course through it. Should there be a need for a high flow rate, a bigger pipe is unavoidable.

Now that the determinations of size, wall thickness, material, and length of the pipe have been established, the next step is to choose its type. GI round pipes offer three most reliable possibilities: welded, seamless, and black. To create welding pipe, various pieces of metal are expertly stitched together while seamless pipe is produced when a single block of metal is drawn through a die. Additionally, black pipe is fashioned when an external coating of black paint or enamel is applied.

When looking for GI round pipe, the last detail to be considered is which kind of fitting to use. Elbow, tee, cross, cap, and coupling are all options to pick from based on the task at hand. An elbow fitting is instrumental in making a 90-degree angle turn with the tubing. A tee fitting provides a junction for three pipeline segments. Whereas, a cross unit forms a connection point between four pieces of the pipe. Applying a cap fitting serves to block off the end of the pipe. A coupling combines two lengths of pipe, thus forming a single unit.

After all the necessary criteria has been considered – such as size, wall thickness, material, length, type and fittings – the pipe is primed and ready for installation.


Post time: 2023-06-20

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