The characteristics of program control valve and pneumatic globe valve are different and compared

Programmed valve is controlled through the program, the use of electric actuator to control the valve switch, generally through remote communication to the actuator issued instructions to achieve remote control valve switch. The pneumatic globe valve is the globe valve of the compressed gas control valve switch, and the switch is executed by the supply of compressed gas.

Programmed valve features:

1, the valve stem and piston rod are combined into one to ensure that the upper and lower are neutral; Make the valve online maintenance easy, improve the maintenance efficiency;

2, the use of the world's advanced low flow resistance valve body, streamlined flow channel design, precision casting surface, special function of the guide plate, so that the flow resistance is greatly reduced;

3, the principle of internal balance: the use of internal balance structure, offset the medium pressure, so that the use of the valve pressure difference is improved, with good two-way pressure capacity. When the valve is in positive and reverse use, it has the same specific pressure of the seal pair, which improves the life of the seal disc, reduces the actuator, and reduces the overall volume of the valve.

4, intuitive and reliable valve position status field indication, equipped with valve position detection signal device, can achieve signal remote transmission function.

Pneumatic globe valve Features:

1, small working trip, short opening and closing time.

2, good sealing, small friction between the sealing surface, long life.

3, the shortcomings of the globe valve are as follows:

4, the fluid resistance is large, the required force is large when opening and closing.

5, not suitable for media with particles, large viscosity and easy coking.