1. According to the requirements of different flow characteristics, the electric sleeve control valve can be easily replaced with a linear flow characteristic sleeve or an equal percentage of flow characteristic sleeve, and can replace the sleeve with different flow capacity according to the different requirements of flow size.
2. The electric sleeve control valve has less impact on the leakage under high temperature working conditions, and will not increase the leakage more under high temperature conditions like the double-seat control valve, because the sleeve and the valve core are made of the same material, the shape is close, the expansion coefficient is the same, and the deformation is close at high temperature, so the leakage amount changes little. (Generally, the spool and seat of the control valve are not made of the same material, so the leakage will increase with the increase of temperature)
3. Its stability is better than that of the double-seat control valve, when the opening of the double-seat control valve exceeds 60-70%, there will be an unstable area, causing the valve core to oscillate, the electric sleeve control valve has no unstable area, and the unbalanced force reversal phenomenon will not occur, and the guiding part of the valve core and the sleeve is very large, which will not cause shock.
4. The set is pressed on the valve rest through the upper valve cover, unlike the single and double seat valves, the valve seat is connected with the valve body through threads, so it is very convenient to disassemble and assemble, and the valve body can not be removed from the pipeline when disassembling and assembling the set of simple valves, which is the most outstanding advantage for instrument maintenance workers.
5. Because the bottom of the valve plug is flat, when cavitation occurs, the shock wave effect of bubble rupture is in the sound below the valve race, and the impact energy has no effect on the valve plug, but is absorbed by the medium itself, while the impact energy of the single and double seat valves has a direct effect on the head of its spool, so the damage of cavitation of the sleeve valve is smaller than that of the single and double seat valves. On the other hand, the sleeve sealing surface is separated from the throttle surface (window), and the high-speed flow of the medium through the seal and then scouring is also greatly reduced, so the service life of the sleeve valve is longer than that of single and double seat valves.
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