Stainless steel ball valves consist of an electric (or pneumatic) actuator and a part of the valve body connected by a bracket and a connecting shaft. Stainless steel ball valves can be divided into piece type, two pieces type, and three pieces type according to their composition. So, do you know what stainless steel ball valves are divided into by structure? Next, let's look at the classification of stainless steel ball valves.
Here is the content list:
Stainless steel ball valves. What can be divided by structural form?
Stainless steel ball valves by their channel location can be divided into what?
Stainless steel ball valves. What can be divided by structural form?
Stainless steel ball valves: The ball is floating, under the action of medium pressure, the ball can produce a certain displacement and pressure on the outlet sealing surface, to ensure that the outlet end is sealed. The floating ball valve structure is simple and has good sealing, but the ball to bear the load of the working medium is all passed to the outlet sealing ring, so it is necessary to consider whether the sealing ring material can withstand the working load of the ball medium. This structure is widely used in medium and low-pressure ball valves.
Stainless steel ball valves: The spheres of stainless steel ball valves are fixed and do not move after compression. Fixed ball valve with floating seat, by the medium pressure, the seat to move, so that the sealing ring on the ball ensures sealing. Bearings are usually installed on the upper and lower shaft of the ball, and the operating torque is small and suitable for high-pressure and large-diameter valves. To reduce the operating torque of the ball valve and increase the reliability of the seal, the appearance of the oil seal ball valve, not only in the sealing surface pressure injection of special lubricating oil, to form a layer of oil film, that is to enhance the sealing, but also reduce the operating torque, more suitable for high-pressure large diameter ball valve.
Elastic Ball Valves: stainless steel ball valves are elastic. The ball and seat sealing ring are made of metal materials, sealing pressure is very large, depending on the pressure of the medium itself cannot meet the requirements of the seal, and must apply external force. This valve is suitable for high-temperature and high-pressure media. An elastic sphere is an elastic groove opened at the lower end of the inner wall of the sphere to obtain elasticity. When the channel is closed, use the stem wedge head to inflate the ball and the seat press to seal. The ball returns to its original shape when the wedge head is released before the ball is turned, leaving a small gap between the ball and the seat to reduce friction and operating torque on the sealing surface.
Stainless steel ball valves by their channel location can be divided into what?
Stainless steel ball valves can be divided into straight-through type, three-way type, and right angle type according to their channel position. The three-way ball valve has a T type and the L type. T type can make the three orthogonal pipes connected and cut off the third channel, a shunt, confluence effect. L-type can only connect two mutually orthogonal pipelines, and cannot simultaneously maintain the mutual connectivity of the third pipeline, so it only plays a distributive role.
1. Three-way ball valve in the structure of the integrated structure, 4 side seat sealing type, flange connection loss, high reliability, design to achieve lightweight.
2. Tee-ball core is divided into T type and L type, long service life, large circulation capacity, and small resistance.
3. Stainless steel ball valves according to their channel position according to the acting type divided into single-acting and double acting two types, single acting type is characterized by once the power source fault, stainless steel ball valves according to their channel position will be in the control system requirements.
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