What are the advantages and disadvantages of high platform ball valves?

What are the advantages and disadvantages of high platform ball valves? The high platform ball valve is a relatively new type of ball valve.
It has some advantages of its own structure, such as no friction on the switch, the seal is not easy to wear, and the opening and closing torque is small
.

This reduces the size of the fitted actuator
.

Coupled with a multi-turn electric actuator, it can realize the adjustment and strict cutting of the medium
.

It is widely used in petroleum, chemical industry, urban water supply and drainage and other working conditions that require strict cut-off
.

So do you know what are the advantages and disadvantages of high platform ball valves? 1.
The advantages of high platform ball valve: 1.
The high platform ball valve has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure
.

2.
The high platform ball valve has simple structure, small volume and light weight
.

3.
Tight and reliable.
At present, the sealing surface material of the ball valve is widely used in plastic, which has good sealing performance, and has also been widely used in vacuum systems
.

　　4.
The high platform ball valve is easy to operate, opens and closes quickly, and only needs to rotate 90° from fully open to fully closed, which is convenient for long-distance control
.

　　5.
It is easy to maintain, the structure of the ball valve is simple, the sealing ring is generally movable, and it is more convenient to disassemble and replace
.

　　6.
When the high platform ball valve is fully opened or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the sealing surface of the valve will not be eroded when the medium passes through
.

　　7.
The fluid resistance of the high platform ball valve is small, and its resistance coefficient is equal to that of the pipe section of the same length
.

　　2.
Disadvantages of high platform ball valve: 1.
Its adjustment performance is worse than that of globe valve, especially pneumatic valve (or electric valve)
.

　　2.
Because the main seat sealing ring material of the ball valve is polytetrafluoroethylene, it is inert to almost all chemical substances, and has a small friction coefficient, stable performance, not easy to age, wide temperature range and excellent sealing performance.
comprehensive characteristics
.

　　The high platform ball valve is an ordinary ball valve with a high platform pre-installed at the time of design and manufacture, so according to the different classification of the ball valve, the high platform ball valve can be divided into many types
.