What Is the Difference Between High-pressure Ball Valves and Ordinary Ball Valves?
There are differences between high-pressure
ball valves and ordinary ball valves in terms of structure, material, sealing performance, and application scope.
Structure: the internal structure of high-pressure ball valves is different from that of ordinary ball valves. The internal structure of the high-pressure
ball valve is more complex. The machining accuracy requirements of components such as balls and valve seats are higher to meet the requirements of harsh working conditions, such as high pressure and high temperature.
Material: the material selection for high-pressure ball valves and ordinary ball valves is also different. High pressure ball valves generally use high-strength alloy steel, stainless steel and other materials, while ordinary ball valves use some conventional materials, such as carbon steel, cast iron, etc.
Sealing performance: there is also a significant difference in sealing performance between high-pressure ball valves and ordinary ball valves. The sealing components used in high-pressure ball valves generally adopt reliable metal sealing structures or new packing sealing structures to ensure sealing performance. However, ordinary ball valves generally use rubber sealing structures or lip shaped sealing structures, which are less reliable than high-pressure ball valves with metal sealing structures.
Application scope: due to the complex structure, high material and sealing performance requirements of high-pressure ball valves, they are more suitable for high pressure, high temperature, high viscosity, and granular media. Ordinary ball valves are more suitable for use in general media, at room temperature, and under normal pressure.
Overall, there are differences between high-pressure ball valves and ordinary ball valves in terms of structure, material, sealing performance, and application scope. In specific selection and use, it is necessary to make choices based on actual working conditions and needs.
The Characteristics and Advantages of High-Pressure Ball Valves
The characteristics and advantages of high-pressure ball valves include the following aspects.
Simple structure, small size, and light weight
The structure of high-pressure ball valves is relatively simple. Compared with other types of valves, they are small in size, light in weight, and easy to install and operate.
Tight and reliable: high-pressure ball valves have two sealing surfaces and use various plastic sealing rings to achieve complete sealing. They have also been widely used in vacuum systems.
Small fluid resistance and almost no flow resistance in full bore ball valves
Due to the shape and movement of the ball, the fluid resistance of high-pressure ball valves is very small, while full bore ball valves have almost no flow resistance and high flow efficiency.
Easy to operate: the opening and closing operation of high-pressure ball valves can be achieved by rotating the ball, they have a good directionality, small rotation angle, and fast opening and closing. From full opening to full closing, it only needs to rotate 90 °, making it easy to control from a long distance.
Convenient maintenance: due to the simple structure of high-pressure ball valves, the sealing ring is generally movable, making disassembly and maintenance more convenient.
Wide application range: the diameter of high-pressure ball valves ranges from small to a few millimeters, to several meters. It can be applied from high vacuum to high pressure. Meanwhile, due to its wiping properties during the opening and closing process, ball valves can be used in media with suspended solid particles.
Strong corrosion resistance: the materials of high-pressure ball valves can be selected according to the different media used, such as stainless steel, copper, alloy steel, etc., which have strong corrosion resistance.
Good sealing performance: the high-pressure ball valve has good sealing performance, which can effectively prevent medium leakage. Meanwhile, due to the use of plastic materials in the sealing ring, it can maintain good sealing performance even at high temperatures.
High control accuracy: high-pressure ball valves can achieve flow control by controlling the opening of the valve, it is suitable for application scenarios that require high-precision control.
Long service life: due to the simple structure, tight reliability, and strong corrosion resistance of high-pressure ball valves, their service life is longer.
In summary, high-pressure ball valves have the characteristics and advantages of simple structure, small volume, light weight, tight reliability, low fluid resistance, convenient operation, easy maintenance, wide applicability, strong corrosion resistance, good sealing performance, high control accuracy, and long service life. It has been widely used in industries such as petroleum, chemical, power, and pharmaceuticals.
