Hydraulic Slide Gate Valve
A Hydraulic Slide Gate Valve is a heavy-duty linear-motion industrial valve that uses hydraulic power to drive a sliding gate plate,delivering high-thrust,precise on/off control for heavy-duty dry bulk solids,high-viscosity slurries,and hig...
A Hydraulic Slide Gate Valve is a heavy-duty linear-motion industrial valve that uses hydraulic power to drive a sliding gate plate,delivering high-thrust,precise on/off control for heavy-duty dry bulk solids,high-viscosity slurries,and high-pressure fluids.It excels in harsh,heavy-load conditions where pneumatic power is insufficient.
Hydraulic Slide Gate Valve
Working Principle
Driven by a hydraulic actuator(hydraulic cylinder+power unit,working pressure 0.6–16 MPa),the valve converts high-pressure hydraulic oil into linear thrust(up to 10,000 N).The actuator pushes/pulls the gate plate to slide in guide rails,fully opening or closing the passage in 2–5 seconds.A built-in buffer decelerates the gate near the closed position,avoiding impact damage to seals.When closed,high hydraulic pressure ensures tight,dust-tight sealing even under high medium pressure.
Key Components
Valve Body:Carbon steel(WCB),stainless steel(304/316),or cast steel;full-bore design with minimal flow resistance(coefficient≤0.1).
Gate Plate:Flat/parallel(for abrasives)or wedge-shaped(for high-pressure sealing);optional ceramic/Stellite coating for wear resistance.
Hydraulic Actuator:Double-acting(hydraulic open/close)or single-acting(spring return for fail-safe);includes cylinder,pump station,solenoid valve,and limit switches.
Sealing System:FKM,RPTFE,or polyurethane seals;wear-compensating,heat/corrosion-resistant.
Guide Rails&Stem:Reinforced alloy steel;ensures stable linear movement,prevents jamming from heavy materials.
Core Features
High Thrust&Heavy Load:Delivers consistent high force for large-diameter(DN50–DN1000)and high-pressure(PN10–PN100)applications.
Precise&Stable Operation:Hydraulic control enables accurate speed/position adjustment;no pressure drop-related performance loss.
Durable for Harsh Media:Handles abrasive solids,high-viscosity slurries,and corrosive fluids with wear-resistant coatings.
Fail-Safe Options:Spring-return actuators close the valve on power loss;hydraulic accumulators for emergency operation.
Remote&Local Control:Supports PLC remote control and on-site manual override;suitable for long-distance/high-altitude installations.
Low Maintenance:Robust structure with sealed components;minimal downtime for replacement.
Technical Specifications
Size Range:DN50–DN1000(2"–40"),custom sizes available.
Pressure Rating:PN10–PN100,ANSI 150#–600#.
Temperature Range:-20°C to+250°C(depends on seal material).
Material Options:
Body:Carbon steel(WCB),stainless steel(304/316),cast iron.
Seal:FKM,RPTFE,food-grade silicone.
Actuator Pressure:0.6–16 MPa(hydraulic power unit).
Applications
Mining&Metallurgy:Ore,slag,and concentrate handling;high-pressure slurry pipelines.
Power&Cement:Clinker,pulverized coal,and ash isolation in silos/hoppers.
Chemical&Petrochemical:Corrosive powders,high-viscosity fluids,and toxic media control.
Water&Wastewater:Sludge,grit,and heavy sediment isolation in treatment plants.
Heavy Industry:Steel mills,port terminals,and large material handling systems.
