Can You Use Compression Fittings on Gas Pipes? What You Need to Know

Understanding Compression Fittings for Gas Pipes

Compression fittings are commonly used in plumbing, but when it comes to gas pipes, there are important considerations to keep in mind. While compression fittings can be used on gas pipes in certain situations, it’s crucial to understand the regulations and safety requirements surrounding their use.

Legal Requirements and Professional Expertise

The use of compression fittings on gas pipes is subject to strict regulations:

Only CORGI (now Gas Safe) registered professionals are legally permitted to commission gas appliances and work on gas installations.
DIY gas work is strongly discouraged due to safety risks and legal implications.
Competence in gas work includes proper testing and ensuring adequate ventilation for appliances.

When and Where Compression Fittings Can Be Used

Compression fittings for gas pipes have specific requirements:

They can only be used in accessible locations for future maintenance.
It’s illegal to use compression fittings under floors, in ducts, or behind fitted kitchen units.
Soft copper olives are often recommended for gas compression fittings.

Proper Installation Techniques

When installing compression fittings on gas pipes:

Do not apply compound or tape to the threads of compression joints.
The seal is created by the olive mating with the pipe and fitting components.
A small amount of compound around the pipe and olive can help lubricate and improve the seal.

Safety Precautions and Testing

After any work on gas pipes:

Thorough leak testing is mandatory using proper equipment like a manometer and leak testing liquid.
Testing methods must comply with British Standards.
Always ensure proper ventilation and safe removal of combustion products.

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