Butterfly valves are on the list of quarter-turn valves that feature disk-like seats. Also, the discs are set perpendicular to the liquid flow when you open or close the valve. Usually, the valves can be operated using a handle, gear, or actuator. Although the function of these units is pretty simple, know that there are different types of them. In this article, we are going to take a look at different types of them. Read on to find out more.
Butterfly Valve Body Types
The two popular body styles include wafer and lug style. The latter serves as a real union ball valve and allow the connected pipes to be taken off while the system is turned on. The valves perform this function with the help of two sets of bolts, with each attached to the related flanges. The other set of bolts maintain the seal between the units. If you need to clean and maintain on a regular basis, these units are your best choice. van điều khiển điện
The wafer-style units don’t feature a lot of bolt mounts. Usually, they feature 2 to 3 holes in order to align and secure it with the piping. Also, they sit securely and can withstand twice the pressure of lug-style units.
Butterfly Valve Materials
Just like other valve types, butterfly valves are made of different types of materials, such as PVC and stainless steel. PVC is lightweight but offers great structural integrity. Plus, it’s compatible with a whole host of chemicals. Unlike metal, both CPVC and PVC are inexpensive. So, if you are on a tight budget, you can opt for these units rather than the more expensive alternative.
For butterfly valves, cast iron is another great choice. The reason is that it offers stronger structural integrity and can withstand a wide range of temperatures. This is what makes it a good choice for industrial applications. Cast-iron butterfly valves offer versatility. So, they can be used in a number of places.
How to use Different Types of these units
The operation method helps differentiate different types of valves. Manual methods include gear wheels and handles. Besides, automated actuation can also be done based on the model. Also, lever-based ones make use of a quarter-turn lever that comes with a locking mechanism. And this is a simple type of BF vale function. However, it may not be practical for large, sophisticated valves.