The inner part of the pneumatic butterfly valve is filled with inert gas, and the product with elastic function is produced by the piston. The product does not need external power, does not lift disorderly, and can stretch freely. (The lockable balloon valve can be positioned at will) It is widely used, but the following points should be paid attention to during installation:
1. The balloon valve is a high-pressure product, which is strictly and randomly dissected, baked and bumped.
2. The piston rod of the balloon valve rotates strictly to the left. If the valve direction needs to be adjusted, it can only be rolled to the right.
3. Operating ambient temperature: - 35 ℃ -+70 ℃. (. Custom made 80 ℃)
4. When installing the connection point, it should roll flexibly without jamming.
5. The selected size should be reasonable, the force size should be appropriate, and the stroke size of the piston rod should have an 8mm margin. Ball valve is the general name of valve block, which is a kind of high elastic body made of common materials. The composite ball valve is composed of a metal screw ball valve and high-quality vulcanization wrapped outside.
In terms of anti-corrosion of ball valves, the electroplating metal protection method was previously introduced. The electroplating metal coating anti-corrosion protection method not only protects the ball valves from corrosion, but also can enhance and beautify the appearance of the ball valves to a certain extent, and also enhance the working performance of the ball valves on a certain basis, improve the hardness and stability of the ball valves, Therefore, the method of metal protective layer is often used for ball valves on the anti-corrosion layer.
The corrosion prevention method for ball valves is that the chemical property of metal zinc in the air is stable and does not change, and a dense zinc oxide film is formed in humid air to prevent corrosion of ball valves. If there are many corrosives in the air, the ball valves should be passivated to increase their protection capacity and aesthetic level.
In fact, the anti-corrosion of ball valves can not only rely on metal zinc for coating anti-corrosion protection, but also through a variety of metals, so we should set the metal selection of anti-corrosion metal protective layer according to the site environment where the ball valves should be produced.