Stainless steel ball valve practical knowledge

Ball valve's profile:

The ball valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium. Ball valve is a new valve that is widely used. Its working principle is to make the valve open or blocked by rotating the valve plug. Ball valve switch is light, small size, can be made of a large diameter, reliable sealing, simple structure, easy maintenance, sealing surface and spherical surface often in the closed state, not easily eroded by the media, widely used in various industries.

Ball valve features:

The stainless steel ball valve only needs to be rotated tightly with a 90 degree rotation and a small torque. The completely equal valve body cavity provides a small, straight flow path for the medium. The main characteristics of the ball valve are its compact structure, easy operation and maintenance, and the stainless steel ball valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metal, and radioactive media. The ball valve body can be integral or modular. This type of valve should generally be installed horizontally in the pipeline. Stainless Steel Ball Valve Category: Stainless steel pneumatic ball valve, stainless steel electric ball valve, stainless steel manual ball valve. Stainless steel ball valve material is divided into 304,316,321 stainless steel ball valve.

Ball valve operation precautions:

1. The stainless steel valve should avoid contact with other metals. Note that no foreign substances such as garbage can enter the interior and be stored in a well ventilated environment.

2. In order to protect the ball valve inner gasket, the ball valve should be in the fully open state, and the gate valve, stop valve and check valve should be kept in the fully closed state.

3. Before piping construction, check the status of the interface, whether there is oil, etc., and remove foreign matter if any.

4. There is a specified flow direction on the valve body. When the piping is constructed, the flow direction shown on the valve body should be confirmed. The direction of the flow should be consistent with the arrow on the valve body during installation.

5. When the pipe is connected to the valve, use a wrench to fix the valve end near the pipe side, and tighten the pipe with a pipe wrench. If the thread is screwed over, the end of the steel tube will damage the inside of the ball valve.

6. When tightening the bolts, do not tighten only on one side. Tighten the corresponding diagonal bolts.

7. The use of the valve seal ring, due to the characteristics of the seal, the pressure of the sealing part will be reduced during the storage process, resulting in leakage, loose screws must be tightened before use. The loose screws should also be regularly checked during normal use.