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There are many types of pneumatic ball valves, which can be divided into various types according to pressure, material, connection type, application medium, including control form. Let's analyze the difference and selection between pneumatic high platform ball valve and ordinary pneumatic ball valve with bracket!
Description, advantages and disadvantages of pneumatic high platform ball valve:
As the name implies, pneumatic high platform ball valves adopt a high platform design, commonly used in ISO standards. The purpose of this is to facilitate the installation of a connecting plate for the drive device, which can be directly installed and connected to (electric/pneumatic) actuators without the need for brackets and connecting shafts. It can save costs without brackets, improve production efficiency, and greatly improve the stability between the valve and actuator. During use, the performance is also very stable, so that the applicability of the overall valve will not be affected due to loose brackets or too large coupling clearance.
The advantages of pneumatic high platform ball valves are that they are more beautiful, refined, elegant, occupy less space, and have a more compact structure than ordinary ball valves in terms of shape. The disadvantages are that they are not resistant to high temperatures, and the temperature is transmitted to the cylinder. The rubber rings in the cylinder are prone to aging, and are generally suitable for pipelines with a medium temperature below 80 degrees Celsius.
Description, advantages and disadvantages of pneumatic ball valve with bracket:
The use and functions of pneumatic ball valves with supports are consistent with those of high platform ball valves. The difference is that there is a support between the actuator of pneumatic ball valves with supports and the valve body of the ball valve. Generally speaking, the purpose of the support is to extend the service life of the valve. Generally speaking, if the medium temperature is high, the support is required to avoid damaging the actuator due to high temperatures.
The advantage of pneumatic ball valve with bracket is that its heat dissipation function is relatively strong. For example, if the medium temperature of the pipeline is above 300 degrees Celsius, it is recommended that the valve rod of the pneumatic ball valve be lengthened accordingly, and the bracket should also be provided. The reason why the valve rod is lengthened with a bracket is to separate the valve body and the actuator of the ball valve, and to prevent the medium temperature of the valve body from being too high, thereby affecting the service life of the actuator. For example, when the valve body of a ball valve is immersed in liquid medium and the liquid medium contains strong corrosivity, which is inaccessible to operators, and the actuator is outside the liquid level, the actuator requires staff to operate. In this case, it is necessary to select a ball valve with a lengthened valve stem and a support bracket. Moreover, if the liquid has strong corrosivity, the material of the ball valve must also be standard stainless steel, This can ensure the normal operation of the pneumatic ball valve.
