The main classification of pipeline fittings determines its functional purpose, namely:

- shut-off valve. It has only two working positions "open" and "closed". Provides complete shutoff of the operating medium flow. The most common version is a gate valve.

The dimensions and conditions of using fabric expansion joints in different types of plants and equipment are completely individual, as well as equipment itself and customers wishes. Fabric expansion joints are most commonly made in accordance with the specifications and customers requirements.


Rubber expansion joint is a flexible joint made of special rubber with flanges or couplings on both sides. It can have one or more compensating waves. They are also called vibration joints, anti-vibration, rubber expansion joints.