Principle of stainless steel flange butterfly valve:

Stainless steel flange butterfly valve is also called stainless steel flip valve. It mainly adopts a three-eccentric multi-layer metal hard seal structure. It is widely used in metallurgy, petrochemical industry, electric power, drainage, and some municipal construction industrial pipelines where the medium temperature is below 425 degrees. Its function is to regulate flow and cut off fluid. Moreover, the stainless steel flange butterfly valve also has good corrosion resistance, so its service life is also very long. Now I will introduce to you the principle of stainless steel flange butterfly valve and its advantages and disadvantages. Hope it helps everyone.

1. Principle of stainless steel flange butterfly valve

The opening and closing part of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve opening, closing or adjustment. The valve is called a butterfly valve. The value from fully open to fully closed of the butterfly valve is usually less than 900. The butterfly valve and butterfly rod themselves do not have self-locking force. In order to position the butterfly plate, a worm gear reducer must be installed on the valve rod. The use of worm gear reducer not only makes the butterfly plate self-locking, allowing the butterfly plate to stop at any position, but also improves the operating performance of the valve. The characteristics of the industrial butterfly valve are that it can withstand high temperatures, has a high applicable pressure range, has a large nominal diameter, the valve body is made of carbon steel, and the sealing ring of the valve plate uses a metal ring instead of a rubber ring. Large high-temperature butterfly valves are manufactured by welding steel plates and are mainly used in flue ducts and gas pipelines for high-temperature media.

2. Advantages and Disadvantages of Stainless Steel Flange Butterfly Valve

(1)Advantages:

1. Opening and closing is convenient, fast, labor-saving, has small fluid resistance, and can be operated frequently.

2. Simple structure, small size and light weight.

3. It can transport mud with minimal liquid accumulation at the pipe mouth.

4. Under low pressure, good sealing can be achieved.

5. Good adjustment performance.

(2) Disadvantages:

1. The operating pressure and operating temperature range are small.

2. Poor sealing. Butterfly valves can be divided into offset plate type, vertical plate type, inclined plate type and lever type according to their structural forms.

3. Introduction to the characteristics and methods of stainless steel flange butterfly valves

1. Features

Butterfly valves have the characteristics of simple structure, small size, light weight, low material consumption, small installation size, rapid switching, 90-degree reciprocating rotation, and small driving torque. They are used to cut off, connect, and regulate the medium in the pipeline, and have good Excellent fluid control characteristics and shut-off sealing performance.

2. How to use

Connection method: flange, wire port or welding.

Driving mode: manual, electric, pneumatic, bevel gear, spur gear rotation.

Applicable media: water, oil, gas, steam, etc.