VAN BƯỚM TAY GẠT OHO MODEL 71L

First we need to find out what is a butterfly valve?

Butterfly valve is a valve used to regulate flow (including: liquid, compressed air, hot and cold air), because we can control the fluid passing through the valve more or less due to the opening angle of the valve.

Butterfly valve has a small, compact and flat design. Thanks to its simple structure, quick and efficient operation, and lower purchase cost than other valves of the same function, butterfly valves are the most commonly used today.

Butterfly valve lever.

The butterfly valve is a butterfly valve that is operated on / off by a lever, just need to turn to 90o to adjust the flow through the pipeline.

Normally, butterfly valves are manufactured from DN50 - DN200. Because if you make a large size, you need a large torque to open / close the valve.

Features identifying butterfly valve closed or open. When the lever coincides with the pipe, the butterfly valve is closed.

Advantage:

• Simple, lightweight design, requires little space for installation and maintenance.
• Simple and fast operation, just need to open / close easily.
• Cheaper than other valves.

Defect:

• Easily damaged when open at 15o  and 75o angles.
• Need to use human force to open / close, especially large sizes, the more difficult it is to operate.

To get more knowledge about butterfly valve. Please see the article that is professional but very easy to understand:  Butterfly valve.