What Is Spool Pieces Of Pipe？
Pipe Spool
Before introducing the spool piece, I think you should first understand what a spool is. A pipe spool is a prefabricated, factory-assembled, single-pipe unit. It’s an essential component of a piping system. Using a pipe spool eliminates the need for on-site fabrication and installation, improving construction efficiency and shortening project duration. Purchasing a prefabricated spool directly minimizes the risk of damage.
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Spool Pieces
Now that you know about Pipe Spool, what are Pipe Spool Pieces? Spool pipe pieces are actually a type of Pipe Spool. They are short, prefabricated pipe components designed for specific uses. There are many types, including Standard Spool Piece pipe, Spool pipe Piece with Side Port, Spool pipe Piece with Liner, etc.
Common Spool Pieces And Functions
Standard Spool Pipe Piece
This is the simplest and most common spool piece. Its outer shape is a straight, complete pipe in the middle without any openings. The two ends of the pipe are usually connected by flanges, threads, or welding grooves.
Main Features
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- To extend the pipe, two sections can be connected to achieve the desired length.
- Standard spool pieces can be used to compensate for installation errors, thermal expansion, or vibration.
- This facilitates maintenance and replacement of connected pipes.
Spool Piping Piece With Liner
As you can see from the images above, the Spool piece with Liner and the Standard Spool piping Piece described above look identical. The only difference is the inner lining. The Spool pipe Piece with Liner incorporates a lining inside the pipe. This inner lining completely differentiates the primary function of the Spool piece with Liner from the Standard Spool pipe piece.
Main Features
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- Protects pipelines from corrosion by the medium.
- Protects the interior of the pipeline from wear and tear by the medium.
- Protects the transported medium from contamination by the pipe metal.
- It provides a certain degree of thermal insulation and reduces flow resistance.
Reducing Spool Piece
Compared to a standard spool pipe piece, this type of spool piece has two different sizes. Its core function is to ensure that two pipes of different diameters and sizes can be connected smoothly. Reducing spool pipe pieces are also divided into concentric reducer sections and eccentric reducer sections.
Main Features
- It can change the flow rate. Given the same flow rate, switching from a larger size to a smaller size will increase the flow rate, while switching from a larger size to a smaller size will decrease it.
- Adjusting the flow rate also adjusts the pressure: faster flow rates reduce pressure, while reversed pressure increases.
- The most important and intuitive function is connecting pipes and fittings with mismatched diameters.
How To Choose Spool Pieces
- Preparation: First, determine your operating environment. Check whether the medium is corrosive, abrasive, toxic, flammable, or explosive. Also determine the operating pressure, temperature, flow rate, and velocity of the spool pipe pieces. Also determine the size, standard, wall thickness, and material of the two pipe sections.
- Choose the material of the spool pipe piece based on the material of your two pipe sections. It must be exactly the same as the material of your two pipe sections, or compatible! Including carbon steel, stainless steel, alloy steel or other materials.
- Choose the type of spool pipe piece based on your desired function. Consider factors like whether the pipe needs to change direction, diameter, or branch. If you only need to extend the pipe, use a standard spool piece. If you need to change direction, choose a spool piece with an elbow based on the desired angle. Concentric and eccentric reducers are used to change pipe diameters. If you need to divert the pipe, choose a tee or cross based on your specific needs.
- Once you’ve determined the material and type, you can choose the connection method. Butt welding is the most common, reliable, and strong connection, suitable for high-temperature and high-pressure environments. However, it requires a specific groove pattern that matches the pipe. Flange connections facilitate disassembly. Threaded connections are suitable for smaller-diameter pipes and are only suitable for low-pressure pipes.
Spool Pieces Manufacturers
Based on the spool pipe piece selection process described above, do you already have a general idea of the spool piece types you need? Or are you still confused and need a plumbing expert to explain? Click below to contact a PANDAPIPE expert to help you solve your problem, or you can contact a PANDAPIPE plumbing expert to purchase the spool pipe piece you need.
