It Is Necessary To Provide The Actual Temperature And Pressure When Selecting A High Temperature And High Pressure Ball Valve

High temperature and high pressure valve is an automatic pressure relief protection device opened by inlet static pressure. High temperature valve is one of the most important safety accessories of pressure vessel. The function of high temperature valve is when the pressure in the container exceeds a certain value.

High temperature valve automatically opens the valve by the pressure of the medium itself, and the high temperature valve quickly discharges a certain amount of medium. When the pressure in the container drops to the allowable value, the high temperature safety valve automatically closes again. The high temperature safety valve keeps the pressure in the container below the upper limit of the allowable pressure. The high temperature valve automatically prevents accidents that may occur due to overpressure. The high temperature valve is also called the final protection device of the pressure vessel.

Among the types of ball valves, it is possible to achieve high pressure under high temperature conditions. Therefore, high temperature and high pressure can be met in the ball valve. When choosing a high temperature and high pressure ball valve, it is necessary to provide the actual temperature and pressure. The following is a description of the field and use conditions of high temperature and high pressure ball valves:

3 Piece Threaded Ball Valve is different from ordinary valves in that its opening and closing parts are designed as spheres, which are driven by the valve stem to rotate around the axis of the sealing surface to adjust the fluid. It is a very important fluid control part device. The following is a detailed introduction to high pressure ball valves.

1. Application Field

As one of the basic pipeline fluid control parts, the application field of high-pressure ball valve is very wide, but at the same time, compared with other valve types, it has its own unique characteristics. High-pressure ball valve works by rotating the opening and closing parts. Its main function is to connect or cut off the fluid. It can also be used to regulate and control the fluid, while high-pressure gate valve works by lifting and lowering.

Another feature of high-temperature and high-pressure ball valve is that the valve core inside it and the valve seat made of cemented carbide can generate a large shear force, so it is most suitable not only for connecting and cutting off fluids, liquids, and natural gas, but also for fluid media containing tiny solid particles and fine fibers. If it is a high-temperature and high-pressure ball valve with a multi-pass design, it can also more flexibly control the diversion, confluence and switching of the fluid medium.

2. Advantages of use

Compared with high-pressure gate valves, high-temperature and high-pressure ball valves can withstand very small fluid pressures, and full-diameter ones do not even have any fluid resistance. And the scope of application is very wide, whether it is high pressure or high vacuum conditions can be used.

Because of the high shear force between the ball core and the valve seat, the high-temperature and high-pressure ball valve is very suitable for controlling and regulating fluid media containing solid suspended particles. When fully open and fully open, it is separated from the medium and will not be corroded by the medium.

The applicable fields and advantages of high-temperature and high-pressure ball valves are introduced here. If you have any needs, you must find a regular merchant to purchase.

The application range of high-temperature and high-pressure ball valves is very wide. For example, they will be used in some chemical, metallurgical, hydropower and other fields, but there are certain matters that need to be paid attention to during use. Let me introduce them to you below.

1. Because there are multiple layers of soft and hard stacked sealing rings fixed on the valve plate of the high-temperature and high-pressure ball valve, when the slide plate is in a normally open state, the medium will form a flushing force on the sealing surface of the high-temperature and high-pressure ball valve, and the soft sealing belt in the metal interlayer will directly affect the sealing after being flushed. Therefore, during use, you must pay attention to the sealing performance.

2. When making a high-temperature and high-pressure ball valve, the diameter should be greater than dn 200. If the overall structure of the valve plate is too thick, there will be a great flow obstruction, that is, the diameter is limited by the structural conditions.

3. In fact, the sealing performance between the sealing surface of the valve plate of the high-temperature and high-pressure ball valve and the valve seat mainly depends on the torque of the transmission device, which makes the valve plate press against the valve seat. If it is in a positive state, the higher the medium pressure, the tighter the seal extrusion will be. Therefore, when the medium is backflowing, as the medium pressure continues to increase, when the unit positive pressure between the valve plate and the valve seat is smaller than the medium pressure, the seal of the high-temperature ball valve will begin to leak.

The above are the precautions for high-temperature and high-pressure ball valves. In the process of daily use, you must pay more attention. In order to buy higher quality and avoid wrong operation during use, the editor recommends that every consumer should understand the relevant knowledge of high-temperature and high-pressure ball valves and know what to do, so as not to be a novice in selection and operation.