Valve Connection Flange

Lined Valve connection form, how the entire valve is connected to the pipeline or equipment, this problem cannot be ignored, because most of the valve running, bubbling, dripping, and leakage phenomena occur here.

1\ Flange connection: This is the most commonly used connection form in valves. According to the shape of the joint surface, it can be divided into the following types:

1\ Smooth type: used for valves with low pressure. It is relatively convenient to process

2\ Concave and convex type: The working pressure is high, and medium-hard gaskets can be used

3\ Tenon and groove type: Gaskets with large plastic deformation can be used, which are widely used in corrosive media and have better sealing effect.

4\ Trapezoidal groove type: oval metal rings are used as gaskets, which are used for valves with working pressure ≥64 kg/cm2, or high-temperature valves.

5\ Lens type: The gasket is lens-shaped and made of metal. It is used for high-pressure valves with working pressure ≥100 kg/cm2, or high-temperature valves.

6\ O-ring type: This is a newer flange connection form, which has developed with the emergence of various rubber O-rings. It is more reliable than general flat gaskets in terms of sealing effect.