Closures are used for various large-scale water supply and drainage, as well as hydraulic and water conservancy projects. They are designed to control the lifting and lowering of large and medium-sized cast iron and steel gates to achieve the purpose of opening and closing.
The Screw Actuated Gate Valves are one of Zhahuahua Hydropower Machinery's leading products, primarily used in hydroelectric power and water conservancy, municipal construction, water supply and drainage, aquaculture, and agricultural water conservancy projects. This product line includes both screw-type and winch-type actuated gates.
Among the screw-type gate valves, we offer: LQ Hand Crank Screw Gate Valves (2T-20T), LQ Electric Hand Screw Gate Valves (3T-50T), LQ Side Swing Screw Gate Valves (0.5T-3T), LQ Hand Push Screw Gate Valves (0.5T-2T), LQ Hand Wheel Screw Gate Valves (0.5T-2T), and LQ Dual Hoist Electric Two-in-One Gate Valves (2-50T).
Screw Actuated Gate Valves: Utilizing helical screw transmission, these valves can control the vertical movement (such as sluice gates, weirs, and gate valves) or rotational movement (like butterfly valves and rotary weirs) of the actuated gates, thereby enabling the opening and closing of valves or gates. The mechanism is compact and rational, with high lifting force, a full range of series, and is widely used in waterworks, sewage treatment plants, various supply and drainage projects, and hydraulic and hydroelectric projects for the lifting and adjustment of gates, weirs, and sludge valves, etc.
Manual (handwheel, hand-crank) and electric (hand-electric dual) control types are available. Using a screw thread drive, it can control the up and down movement (such as sluice gates, weir gates, valves, etc.) or rotational movement (such as butterfly valves, rotating weir gates, etc.) of the actuated equipment, thereby achieving the opening and closing of valves or gates. The mechanism is compact and rational with high lifting force, a complete series, and is widely used in waterworks, sewage treatment plants, various water supply and drainage projects, and hydraulic and hydroelectric projects for the lifting and adjustment of gates, weir gates, sludge valves, and other equipment.
Handheld Flashlight Two-in-One On/Off Machine Operation Procedure:
1. Inspect the dual-purpose switchgear's power distribution equipment for operational status, close the main power switch, and immediately activate the backup power supply in case of a power outage, and perform the power switch as required.
2. Check for phase loss in the three-phase power supply and ensure the voltage meets the requirements.
3. Inside the switch box, check the power switch and the power indicator. Open and close the gates in sequence, ensuring the operation aligns with the indicated direction.
4. For situations such as door lock failure, difficulty in opening or closing, overloading, stalling, or abnormal noises from the gate or opening/closing mechanism, it is imperative to stop immediately and inspect to eliminate any issues.
5. When stopping at a certain height and encountering brake slippage, take emergency measures to force the brake.
6. During the operation of the two-way flashlight switch, when the lifting height exceeds 20m, oil should be added by tightening and refilling the oil level of the lubrication parts such as the bearing sleeve and shaft liner once.
7. In case of an unexpected halt, first disconnect the power source, identify the cause, rectify the fault, and then resume operation.
8. When the gate is in the open position, it is prohibited to adjust the braking equipment or loosen the fixing screws.
