Structural Principle of Butterfly Valve and Analysis of Applicable Environment

Butterfly butterfly valve installed in the pipe diameter direction. In the butterfly valve body cylindrical channel, the disc-shaped disc rotates about the axis, the rotation angle is between 0 ° ~ 90 °, when rotated to 90 °, the valve is fully open state card. Butterfly valve structure is simple, small size, light weight, only a few components. And just turn 90 ° to quickly open and close, easy to operate, while the valve has good fluid control features. When the butterfly valve is fully open, the thickness of the disc is the only resistance to the flow of the medium through the valve body, so the pressure drop across the valve is small and therefore has good flow control characteristics. Butterfly valve seal and metal seal two types of seal. Flexible sealing valves, seals can be embedded in the body or attached to the butterfly plate around. Valves with metal seals generally have a longer life than elastomeric valves, but are harder to seal completely. Metal seals can adapt to higher operating temperatures, while flexible seals have temperature-limited defects. If the butterfly valve is required to be used as a flow control, the main choice is the correct size and type of valve. The structural principle of the butterfly valve is especially suitable for making large diameter valves. Butterfly valve not only in the oil, gas, chemical, water treatment and other general industry has been widely used, but also used in thermal power station cooling water system. Commonly used butterfly valve clamp butterfly valve and flange two. Butterfly Valve with the valve head bolt connection between two pipe flanges, flange type butterfly valve is a valve with a flange, both ends of the flange bolts with the valve connected to the pipe flange.

Sand Paper Disc

Sand Paper discs are versatile grinding and polishing tools that are widely used in industries such as woodworking, metalworking, auto repair, furniture manufacturing, and electronics and electrical appliances. They are designed to quickly and efficiently remove the surface layer of materials, making them smooth and ready for subsequent processing. The following is a detailed introduction to sandpaper disc products:

Product Features
1. Efficient grinding

Sand paper discs use high-quality abrasives to provide excellent cutting ability and durability. Whether it is fast grinding of rough surfaces or fine polishing of smooth surfaces, they can provide perfect grinding results.

2. Multiple material options

A variety of abrasives such as aluminum oxide, silicon carbide, and zirconium corundum can be selected to adapt to different materials and grinding requirements. Aluminum oxide is suitable for most uses, silicon carbide is suitable for hard materials, and zirconium corundum provides longer service life and efficient cutting.

3. Wide range of grit sizes

The grit size ranges from coarse to ultra-fine to meet the needs of different grinding stages. From removing old paint layers to achieving high-gloss surface treatment, sandpaper discs can achieve precise control.

4. Easy to install

Provide two installation methods: Hook & Loop and PSA, which are easy to replace and firmly fix, suitable for various grinding equipment.

5. Customized service

Different sizes, shapes and abrasive types can be customized according to customer needs to meet the needs of special applications.

Application areas
1. Woodworking and furniture industry

Sandpaper discs are suitable for grinding and leveling wood, which can effectively remove surface defects and improve the coating effect.

2. Automobile manufacturing and maintenance

Treat the surface of the car body before painting to ensure that the paint surface is smooth and flawless. It can also be used to repair and polish old paint layers.

3. Metal processing

It is used for surface treatment of metal materials such as stainless steel and aluminum alloy to remove oxide layers and welding marks and achieve high-quality polishing effects.

4. Electronics and electrical appliances

Provide fine grinding solutions, suitable for surface treatment of electronic components and housings.

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