Compression Valves

About Compression Valves

Compression refers to a type of mechanical connection used to join valves to pipes without the need for soldering, welding, or threading. It uses a compression nut and a ferrule (also called an olive) to form a secure and leak-tight joint. This method is especially common in plumbing and heating systems.

How Does It Work?

The compression fitting consists of three main parts: the compression nut, the ferrule, and the valve body. When the pipe is inserted into the valve and the compression nut is tightened, it compresses the ferrule between the nut and the valve. This action forces the ferrule to grip the pipe tightly and seal it against the valve. The seal is both mechanical and friction-based, providing a secure joint that can often withstand moderate pressures.

Why Is It Used?

• Ease of installation – No need for soldering, welding, or adhesives; just basic hand tools
• Ideal for quick repairs or installations in tight or awkward spaces
• Can be disassembled and reassembled without damaging components
• Reliable sealing for water and certain gases under moderate pressure
• Compatible with copper, plastic, and some metal pipes
• Perfect for applications where heat-based connections are not feasible

Common Uses:

• Domestic plumbing systems (taps, toilets, sinks)
• Central heating systems (radiators, boiler pipework)
• Air and gas lines in light industrial setups
• Maintenance or temporary systems where quick disconnection is needed
• DIY installations due to their user-friendly nature