Explanation:

A free pipe outlet is a type of pipe fitting that is used to connect a pipeline to a fixture or equipment. It is designed to be flexible, allowing for some movement between the pipeline and the equipment to which it is connected. This makes it ideal for use in situations where there may be thermal expansion or contraction, vibration, or other types of movement that could cause stress or damage to the pipeline.

Features of a Free Pipe Outlet:

1. Flexible Module: A free pipe outlet is a flexible module, which means that it is designed to be able to move and flex in response to changes in temperature, pressure, or other factors. This flexibility helps to reduce stress on the pipeline and prevent damage.

2. Non-modular Module: A free pipe outlet is a non-modular module, which means that it is not designed to be easily modified or adapted. This is because the flexibility of the outlet is built into its design and cannot be easily changed.

3. Easy to Install: A free pipe outlet is generally easy to install, requiring only a few basic tools and some basic plumbing skills. This makes it a cost-effective option for many different types of pipelines and equipment.

4. Suitable for Multiple Applications: Free pipe outlets are suitable for use in a wide range of applications, including in residential, commercial, and industrial settings. They can be used to connect pipelines to fixtures such as sinks, toilets, and showers, as well as to equipment such as boilers, heaters, and pumps.

In conclusion, a free pipe outlet is a flexible module that is ideal for use in situations where there may be thermal expansion or contraction, vibration, or other types of movement that could cause stress or damage to the pipeline. It is easy to install and suitable for use in a wide range of applications, making it a cost-effective option for many different types of pipelines and equipment.