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Half Coupling vs Sockolets – What’s the Difference

Half Couplings vs Sockolets

As an engineer or plumber, you know countless types of pipe fittings are available. Among them are half couplings and sockolets. While these two fittings may look similar, key differences between them make them suitable for different applications. In this article, we’ll explore the specifics of these pipe fittings so you can determine which one is best for your project.

What is a Half Coupling?

A half coupling is a fitting used to join two pipes together at an angle. It has a threaded end that can be connected to the ends of two separate pipes in order to create a secure connection. A half coupling comes in various sizes in order to accommodate different types of pipes, such as copper, steel or plastic. These couplings offer ease of assembly and disassembly when it comes time to repair or replace the pipes they connect.

What is a Sockolet?

A sockolet is similar to a half coupling but with one key difference: it has a built-in outlet that allows for additional connections from other pipes or hoses. This makes connecting multiple pieces of equipment easier without having to use additional adapters or fittings. The outlet (or “sock”) on a sockolet can be threaded or socket welded depending on the application requirements.

Difference Between Half Couplings and Sockolets

The main difference between half couplings and sockolets is the built-in outlet on the latter fitting, which allows for additional connections from other pipes or hoses. While both fittings provide excellent performance in their own right, it’s important to consider what type of application you need before making your choice to select the best option for your needs.

  • A half coupling is a type of pipe fitting that is used to connect two pieces of pipe together.
  • A sockolet is a pipe fitting used to connect a piece of pipe to another piece of pipe or a valve.
  • Half couplings are made from forged steel, while sockolets are made from cast iron or stainless steel.
  • Half couplings are attached to the pipe by threading, welding, or brazing, while sockolets are attached by welding or brazing.
  • Half couplings have a smaller diameter than sockolets, which allows them to be used in tighter spaces.
  • Sockolets are more expensive than half couplings, but they are also more durable and have a longer lifespan.


Half couplings and sockolets are both useful pipe fittings with distinct characteristics that make them ideal for different applications; understanding these differences will help you choose the correct fitting for your project needs. If you’re looking for an easy way to add additional connections from other pipes or hoses into your plumbing system, then a sockolet may be your best option due to its built-in outlet feature. However, if you only need a basic fitting that will join two separate pipes together at an angle without any extras, then a half coupling may be all you need! No matter which type of fitting you decide on, both options offer excellent performance and reliability when installed properly by an experienced professional!

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