Gate valves are normally used for on-off service and are not recommended for throttling service.
Gate valves are normally used for on-off service and are not recommended for throttling service.
闸阀通常应用于开启-关闭场合，不推荐用于节流应用。
Gate valves are normally used for on-off service and are not recommended for throttling service.
闸阀通常应用于开启-关闭场合，不推荐用于节流应用。