The side摇式 screw gate valves are mechanical devices that lift and lower gates through screw transmission. The models include the QL type screw gate valves, QD type electric gate valves, and QP type winch gate valves. Those in the water conservancy and hydropower industry are well-acquainted with them. The structure of the gate valves is simple, and the operation is convenient. By following the operation manual or technical guide provided by the manufacturer, a little practice and trial operation will enable you to master it quickly. The manual gate valves have closing forces of 0.5 tons, 1 ton, 2 tons, 3 tons, and 5 tons. Align the screw with the nut on the gate valve, and simply rotate the handle clockwise to lift or lower the gate via the connected screw. Electric gate valves can achieve closing forces of up to 8 tons, 10 tons, 15 tons, 20 tons, 25 tons, and even 50 tons. Today's technology can also accommodate double-point gate valves, where two valves are connected by levers and operate simultaneously at the same speed.