What is a ball valve?
Valves that use a ball as a shut-off device are called ball valves. Ball valves are constructed so that they completely stop the flow of liquids or gases in pipes with a large diameter. Contrary to butterfly valves or gate valves, the shut-off device is a ball with a bore which can control the flow. This part is governed by the European Norm EN 331/98. The special features of these valves are, among others, the compact and robust design, ata full cross-section they allow ahigh flow rate and in high pressure applications they remain sealed.
What kind of ball valves are there?
There are different kinds of ball valves, the most typical are found in the following list:
Ball Valve Models
The following list shows the different models of ball valves:
- One-piece ball valve with reduced flow and inner thread
- Two-piece ball valve with full flow and inner thread
- Two-piece ball valve with full flow and inner & outer thread
- Three-piece ball valve with full flow and inner thread
- Three-way ball valve with full flow, T or L bores, inner thread
- One-piece compact ball valve
- Two-piece ball valve with flanges
- Three-piece ball valve with cutting ring or press connection