The Purposes of Pipe Fittings Commonly Used in Plumbing

The Purposes of Pipe Fittings Commonly Used in Plumbing

You might be confused as to the purpose of pipe fittings. These tools attach to pipes and can change the flow, direction, or diameter. Pipe fittings are not a trivial aspect of plumbing systems, but they are an important part of the system, like a 304 stainless steel plate. You can get professional assistance to ensure a proper installation and save time. Elbows change the angle of the pipe run and are used most commonly in 90-degree turns. The degree of the direction change can be slow or fast depending on the type of elbow used.


Elbows of pipe fittings are critical parts of a plumbing system. They connect welded pipe sections and allow the passage of fluids. The quality of an elbow depends on how well it fits the rest of the system. A properly-sized elbow will withstand reheating without changing its physical properties. However, there are several things to remember when buying a pipe elbow. Read on to learn more about the most important things to keep in mind when buying one.

A good pipe elbow is made of steel or other metal that is welded to the pipes it joins. Its internal length plays a role in the resistance it provides. Short-radius elbows are designed to fit tighter spaces, but they also generate a lot of pressure loss. On the other hand, long-radius elbows have a greater center-to-face length and tend to produce a smooth transition with less turbulence.

Elbows are used in all kinds of plumbing systems. They’re more common than other types of pipe fittings since they’re designed to allow you to change the direction of your pipes without making them break. There are two standard elbow degrees – 90-degree and 45-degree. These elbows can be cut to any degree, and are available in both short and long-radius varieties. And because of their flexibility, elbows are often more versatile than you think.


The name tee hints at its purpose: it connects two pipes that carry different fluids to form a single stream. Tees are made of metal, such as carbon steel, stainless steel, or alloy steel, and can be either threaded or non-metal. They are used in pipe fittings in the chemical industry. Generally, tees are made of two different diameters but can be equal in diameter or unequal.

One of the most common types of tees is the diverter tee, which is used in pressurized hydronic heating systems. The diverter tee allows the flow to continue in the main line, even after the branch shuts down. Diverter tees are commonly marked to indicate which way the tee is facing. Installing them the wrong way can result in poorly functioning piping systems.

There are several types of tees and couplings. The first type is called full coupling. It joins two pipe shafts. Another type is known as half coupling, which is used for branching from a larger pipe. The third type is known as a reducing coupling and is used to connect two pipes of varying diameters without sacrificing the center line. A third type is the pipe nipple. This is a short piece of pipe with a male thread on each end and is used to connect two or more pipes, and also for connecting hoses.


There are two basic types of reducers: concentric and eccentric. A concentric reducer shrinks the diameter of a pipe while maintaining its symmetry around the fitting, which is used to join two sections of the same pipe or tube. An eccentric reducer shrinks the diameter while maintaining one side of the fitting horizontally, and has an outlet that’s off-center compared to its larger end. The smaller outlet may be offset from the larger end in some cases, but this is still within the tolerance of the product. Bushings are similar to reducers, but they are threaded on both the inner and outer circumferences. They may provide the same functionality as a reducer, but are not made for vertical orientations.

An eccentric reducer is 10” long and eight inches in diameter, FOB. The H dimension is found on the Welded Fittings-Flanges Dimensioning Chart. An eccentric reducer also called a street elbow, is an excellent choice for branch lines. Reducers can also be used to connect two pieces of different diameters. They help maintain the centerline of the pipe.


Pipe fittings, including caps, are a common part of the plumbing system. Pipe caps cover the ends of pipes, including those in piping headers. Flange-type pipe caps have a male NPT thread and are commonly used with a lap joint flange. The flange is butt-welded to the pipe but can move over the stub end. Pipe fittings are classified by ASME B16.9, which means that the specifications for these fittings are the same as those for the pipe itself.

Caps are often made of several different materials. Some are made of ABS thermoplastic (TPE), PVC, CPVC, copper, and stainless steel. Some fittings have specific limitations based on what they can and cannot do. Pipe caps are an essential part of the plumbing system and are available in a variety of styles and materials. Listed below are a few of the most common types. You may need a male or female-threaded spigot.

Tapered fittings are also common. They are multifunctional and come in different sizes. Tapered fittings go with male and female NPT threads. They are a good choice for connecting two pipes of different diameters. An eccentric reducer, on the other hand, has offset center lines to prevent air bubbles. Tees are pipe fittings with an inlet and an outlet. They are usually shaped like a letter “T” and are designed to protect the external and internal pipes.


Plugs are threaded caps or plugs that seal the end of pipes. They are commonly used at cleanout locations in a sewer system. Nibble fittings are short sections of pipe that are male-threaded on both ends. They connect male-threaded pipe ends. A cap or plug should fit the pipe perfectly. They are also available in a variety of colors. Depending on your need, you might need a spigot or male-threaded plug.

An NPT plug is difficult to measure because the diameter varies along the thread length. The maximum thread diameter is just under the standard. NPT plugs must be able to screw into an unspecified depth for proper use. A good choice is an 18-piece NPT pipe fitting assortment kit, which includes: 1/4″ NPT, 3/8″ NPT, and 3/4″ NPT. A good place to start is by searching online for a supplier of NPT pipe fittings.

When buying pipe fittings, take into consideration the point of access. How large the access point is will impact the type of plug you need. You should also take into consideration the back-pressure rating of the plug. Back-pressure is the amount of force exerted on a plug by the media in front of it. A plug’s back-pressure rating is crucial to ensure it is strong enough to block the media and stay in place for a long period of time.

Tees Connects Three Pieces of Pipe

A Tees connects three pieces of pipe, usually two or more different diameters. They come in many types and sizes to fit different applications. These three-piece connectors are made of PVC or stainless steel hubs and rubber sleeve sleeves. These tees can be easily inserted into the mainline without the need for any special tools. They are used to connect laterals to all types of mainline structures, including corrugated and solid-wall pipes.

There are several types of tees, each of which has a different function. Tees can be straight, reduced, or T-shaped, and are used in all types of pipework. They are available in many sizes and materials for different applications, including CPVC, PVC, and galvanized steel. They are commonly used in the plumbing industry to join three different pieces of pipe. However, they also come in other configurations.

External snap tees are used to connect 4″ perforated drain pipe, solid drain pipe, and drain guard corrugated. These tees are useful for transferring fluid between two pipes with different diameters. These fittings are also useful for connecting two pieces of pipe that have different diameters and types. Tees come in a variety of sizes, so you can choose the one that best fits your needs.

Size of Branch Feeding

Using a tee to reduce the size of a branch feeding off of the main line can be advantageous when trying to minimize the water usage in a piping system. Water flowing from a main to a branch usually follows the path of least resistance. However, when the tee isn’t completely closed, water can flow straight through the branch piping. As the water follows the path of least resistance, it will also flow straight through the branch piping.

A tee works by reducing the size of a branch feeding off stub main lines. When the tee is not closed, water can flow freely through the branch pipe. A tee may be divided into two or more outlets, which create a fixed resistance to flow along the main line. The diverter tee can change the path of least resistance for water by creating a narrow opening. This makes it difficult for all the water to flow straight, so some will divert into the branch.

The basic parts of a mechanical tee are the same as those of a grooved coupling. The tee gasket fits around the circumference of a pipe receiving an outlet. The housing is used to secure the outlet to the pipe. A mechanical tee may include a U-bolt instead of a lower housing. Those with U-bolts in place of lower housing can save money.


Tom Faraday

Tom Faraday