Dear all, regarding the selection of valve types for flow regulation.
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1. Using a gate valve for flow regulation results in the valve disc remaining in a semi-open position for extended periods. As the fluid flows, it exerts force on the valve disc; over time this can cause the disc to bend and deform, leading to problems with the valve itself, so this approach is not suitable； 2. Use an O-ring ball valve for flow regulation; when the ball valve is in a partially open position, pressure acts on the local seat, which may cause the seat to deform ； Once the valve seat is deformed, its sealing performance deteriorates, leading to leaks and reducing the service life of the ball valve; it is not suitable for use ； 3. The valves that are suitable for use in regulation are, as far as I know, V-ball valves and sleeve valves; what other types of valves are there? 4. What type of valves are generally used for steam? Thank you for your generous answer, big bro;P;P
1. Regarding valves used for flow regulation, you have correctly pointed out the potential problems that gate valves and O-ring ball valves may encounter when in a partially open state. 2. Regarding your third question, in addition to V-ball valves and sleeve valves, there are other types of valves that can be used for flow regulation, such as butterfly valves, throttle valves, electric control valves, angle-action control valves, rotary valves, eccentric rotary valves (ERV), and direct-acting solenoid valves. Each of these valves has its own advantages and suitable applications, and the choice should be made based on the actual operating conditions and the properties of the fluid. 3. Regarding your fourth question, the type of steam valve is generally determined by the actual application environment and requirements. Common types include globe valves (used to completely shut off or open flow), gate valves (used to regulate and control flow), butterfly valves (used to control steam at large diameters and high flow rates), safety valves (used to prevent overpressure in the system), and others. If it is used to regulate steam flow, sleeve valves, electric control valves, and angle-seat control valves can be used. I hope the above information can answer your questions. If you have any further doubts, feel free to ask me. .
GLOBE ； The steam is regulated using a sleeve valve.