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Advantages of Hand Liquid Actuated Plate Gate Valve
Release Date:
2025-07-31
The manual hydraulic plate gate valve integrates a dual operation system of manual handwheel drive and hydraulic actuator.
The Five Core Advantages of Manual Hydraulic Flat Gate Valves
1. Dual Drive Mode Ensures Reliability
The manual hydraulic flat gate valve integrates a dual operation system of manual handwheel drive and hydraulic actuator. In case of power outage or automation failure, it can quickly switch to manual mode (achieving labor-saving operation through worm gear or gear transmission); under hydraulic drive mode, it can achieve rapid opening and closing under high-pressure conditions (response time <3 seconds). This redundant design significantly enhances system fault tolerance, suitable for places with strict safety requirements such as oil pipelines and chemical plants.
2. Low Flow Resistance Design Optimizes Energy Efficiency
The flat gate valve adopts a full bore structure, with the gate completely disengaged from the fluid channel when opened, and the flow passage diameter consistent with the pipeline (flow resistance coefficient only 0.05-0.1). Compared with traditional globe valves (flow resistance coefficient 0.3-0.5), it can reduce pumping energy consumption by 15%-30%. It is especially suitable for long-distance pipelines, large irrigation systems, and other scenarios requiring reduced power loss.
3. Bidirectional Sealing Adapts to Complex Conditions
The gate uses double-sided hard alloy overlay welding or embedded elastic sealing rings, combined with precisely machined valve seats (flatness ≤0.02mm), capable of withstanding 40MPa forward pressure and 15MPa reverse pressure. This design solves the reverse pressure leakage problem of ordinary gate valves and performs excellently in environments with pressure fluctuations such as LNG storage tanks and subsea pipelines.
4. Modular Maintenance Reduces Costs
The valve body adopts a split casting process (such as middle flange bolt connection structure), allowing replacement of the gate, sealing parts, and other wear parts without dismantling the pipeline. Coupled with the hydraulic system's online lubrication device, the major overhaul cycle is extended to 5-8 years, reducing maintenance man-hours by 60% compared to traditional gate valves.
5. Great Potential for Intelligent Upgrades
The hydraulic actuator can seamlessly interface with PLC control systems. By adding pressure sensors and positioners, it achieves precise opening control (error ±0.5°) and remote monitoring. This design provides standardized interfaces for new infrastructures such as smart pipe networks and digital oilfields.
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