How does a double offset butterfly valve work?

A double offset butterfly valve is an ideal choice for systems involving high pressure resistance. They are typically used in shipbuilding, HVAC, wastewater treatment, and power generation. Placing the disk in the center of the pipe hole will prevent excessive wear on the valve. In this article, we’re going to dig a little deeper into how these valves work. Keep reading to know more.

If you want to regulate and isolate the flow of liquid or gas, know that the drive disk involves the closing system. Positioned in the middle of the pipe, the butterfly or disc is fixed in a path that joins the actuator located outside the disc.

The rotation of the actuator establishes the parallel or perpendicular direction of the valve to the flow of liquid or gas. For flow regulation, you need to adjust the level because you need to monitor the output flow. Unlike a ball valve, the valve disc is present in the system and causes a pressure drop regardless of valve position.

When the Dole butterfly valve is in the closed position, be sure to turn the valve to completely block the passage. You can then rotate the disk to release the air or fluid. Also, you can try opening the valve incrementally, as the flow will be reduced.

The movement of the disc depends on whether the valve is fully open or fully closed. If you open the disk partially, the disk will not make a full quarter turn, which may impede unrestricted flow. In this case, only a little fluid or liquid will pass through.

Apart from gases, liquids and semi-solids, double eccentric butterfly valves work as a check valve to prevent fire.

Advantages of using these valves

Below are some of the main advantages of using these valves.

easy to install

First of all, these units are small but easy to open when pneumatically operated. Apart from this, its simple design makes it easy to install and operate.

affordable costs

Butterfly valves are designed in a way that they do not use a lot of materials. Generally, the wafer style is on the list of the most practical.

requires less space

Also, these drives are designed in a way that they are more compact than other types you can find out there.

convenient to maintain

Another reason why these drives are so popular is that they are quite reliable and durable. They also do not require much maintenance due to their simple design and structure.

By taking the time to install them correctly, wear and tear can be significantly reduced. Therefore, they can stand the test of time. As a result, you may be able to save tons of money.

In addition, these units are quite comfortable to wear, so you do not need to worry about how to avoid excessive wear.

In short, hopefully, you now know how these units work.