Views: 15 Author: Site Editor Publish Time: 2022-05-14 Origin: Site
Among many valve products, gate valve and butterfly valve are the most commonly used valve models. Let's take a few points to understand the differences between the two valves.
1. How it work Gate valve: The gate valve is a straight-stroke valve, that is, the valve stem drives the valve plate to move vertically up and down to complete the opening and closing of the gate valve, so the flow resistance of the gate valve is small, but due to its high opening height, the opening and closing speed is slow.
Butterfly valve: Butterfly valve belongs to angular stroke valve, that is, the valve plate of the butterfly valve rotates 90 degrees around the valve shaft to complete the opening and closing of the butterfly valve, so the opening height of the butterfly valve is only a quarter of the diameter of the channel, so the butterfly valve pens and closes quickly and quickly.
2. Working conditions and media Butterfly valve is suitable for pipelines conveying various corrosive and non-corrosive fluid media in engineering systems such as producer, coal gas, natural gas, liquefied petroleum gas, city gas, hot and cold air, chemical smelting and power generation environmental protection, building water supply and drainage, etc. It is used to regulate and cut off the flow of the medium.
The gate valve is an opening and closing gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed. is 2°52'. To improve its manufacturability and make up for the deviation of the sealing surface angle during processing, this gate is called an elastic gate.
When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, only relying on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most gate valves are forcibly sealed, that is, when the valve is closed, the gate must be forced against the valve seat by external force to ensure the tightness of the sealing surface.
In many cases, butterfly valves have gradually replaced other types of valves. The main difference between a gate valve and a butterfly valve is that the gate valve has no adjustment function, while the butterfly valve has an adjustment function.
Finally, the price is different. Anyone who wants to buy and understand the price can contact us and we will send you a free quotation!