ThePipingMart Blog other 11 Types of Olet Fittings and Their Uses

11 Types of Olet Fittings and Their Uses

Olet Fittings

If you work in the industrial sector or piping systems, you have probably heard of olet fittings. Olets are an important and necessary component for pipeline branch connections, allowing for a stronger and more efficient pipeline system. But did you know that different types of olet fittings are available, each with unique benefits and uses? This blog post will discuss the types of olet fittings you need to know for your pipeline system.

Types of Olet Fittings


A weldolet is the most common type of olet fitting. It creates a branch connection by welding it onto the main pipe. Weldolets are best suited for high-pressure and high-temperature applications and are available in carbon steel, stainless steel, and alloy steel.


This type of olet fitting is typically used for low-pressure and low-temperature applications. It is designed to fit over the pipe and secured with a weld. Sockolets have a larger bore than weldolet, making them well-suited for less restrictive applications.


The triolet is an easy-to-install, cost-effective fitting that connects the branch pipe to a threaded pipe. Unlike the weldolet and socket, the redolent can be easily assembled and disassembled, making it an excellent choice for temporary or seasonal applications.


Sweepolets are used for applications where the pipeline needs to change direction. They are designed to have a 45 or 90-degree lateral take-off from the main channel, providing a gradual transition so that fluid flow through the pipeline is not disrupted.


A Latrolet is a type of olet fitting used for larger-diameter pipes. It is designed to be installed at a 45-degree angle from the main pipeline, providing a smooth transition. This fitting is also available in different materials and is better suited for high-pressure applications.


Flangolets are designed to connect a pipe with a flange to a pipe without a flange. They are often used in applications where the connection needs to be easily assembled and disassembled for maintenance or repair purposes.


The Nipolet is perfect for applications requiring a small-diameter branch connection. This type of fitting is designed to connect a pipe at a 90-degree angle to a smaller diameter pipe. It is best suited for low-pressure applications.


Couplets connect pipes of the same diameter and have a socket weld end and a threaded end. They are designed to have a flush fit so there isn’t any turbulence in the fluid flow.


Elbolets are designed to connect pipes at a 45-degree angle from the main pipeline. They are commonly used in applications where there is a need to change the flow direction of the pipeline.

Insert Weldolet

Insert Weldolets are similar to normal wallets but have an interference fit providing additional structural support. They are designed to provide a secure, leak-free seal that can withstand high-pressure applications.


Brazolets connect a pipe to a flange. They are ideal for applications that need a threaded end to connect to the pipe and a flange to connect with it.


In conclusion, olet fittings are an essential component of any pipeline system. Choosing the right olet fitting for your application can greatly affect the overall performance of your pipeline system. We hope this blog post has provided valuable insights into the different types of olet fittings available, allowing you to decide when you’re next in the market for an olet fitting. Consider factors like pressure, temperature, and pipe size, as these will help you select the best olet fitting for your unique needs.

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