Sluice Gates

YINI offers a wide range of gates to meet your water management needs.

01 / Sluice Gates

Cast Iron Sluice Gate
with Copper Seals

Applications

Designed for water supply, drainage, water diversion, flood control, and other water management projects. The gate provides flow shut-off, flow regulation, and control of water flow direction.

Design and Construction

  • Type: Orifice-type cast iron sluice gate with copper sealing strips.
  • The assembly includes a gate frame, gate plate, gate stem, wedging mechanism, sealing seat, and lifting lugs. It can be operated using a manual hoist or a combined electric and manual hoist.
  • Copper strips fitted to the sealing surfaces provide reliable sealing and durability. The adjustable wedge mechanism allows compensation for wear over time, helping maintain proper operation and sealing performance.
  • The gate features a practical design, reliable closure, and convenient installation, adjustment, operation, and maintenance.

Technical Specifications

ParameterSpecification
Operating environmentOutdoor
Ambient temperature−40°C to +80°C
Suitable mediaWastewater and sludge
Medium pH range4–10
InstallationWall-mounted

02 / Sluice Gates

Channel Slide Gate

Applications

These gates are widely used in water treatment plants, wastewater treatment plants, irrigation and drainage systems, flood control projects, and river management. They are also suitable for petroleum, chemical, metallurgical, environmental protection, and power industry applications.

They are designed to isolate flow, regulate flow rates, and control water levels in open channels.

Design and Construction

  • Type: Channel slide gates fabricated from stainless steel or epoxy-coated carbon steel and fitted with resilient rubber seals.
  • Lightweight construction with smooth operation, corrosion resistance, reliable sealing, and easy installation and maintenance.
  • Designed for water supply and drainage systems, handling raw water, clean water, and wastewater at ambient temperature.
  • Full-width opening: The gate opening matches the channel width and can be adapted to a wide range of channel depths.
  • Flexible operation: Available with manual or combined electric and manual operation. Manual hoists are suitable for remote locations.

Technical Specifications

ParameterSpecification
MaterialsStainless steel or epoxy-coated carbon steel
SealsResilient rubber
Suitable mediaRaw water, clean water, and wastewater
OpeningFull-width, matching the channel
OperationManual or combined electric and manual

03 / Sluice Gates

Flap Gate

Applications

A flap gate is a non-return valve installed at the end of a drainage pipe to prevent backflow from the receiving water body. Flap gates are commonly installed at drainage outfalls along rivers and tidal waterways.

When the receiving water level rises above the pipe outlet and the external pressure exceeds the pressure inside the pipe, the flap closes automatically, preventing river or tidal water from flowing back into the drainage system.

Design and Construction

  • Type: Non-return flap gate with a seat, flap disc, watertight sealing ring, and hinge.
  • Available in circular and rectangular configurations, and can be manufactured from metal or composite materials.
  • Materials include stainless steel, cast iron, structural steel, and composites such as glass-fiber-reinforced plastic (GRP).
  • Design options include buoyant, flat-plate, sleeve-type, top-hinged, single-leaf and double-leaf, and energy-saving models.

Technical Specifications

ParameterSpecification
FunctionAutomatic backflow prevention
ShapeCircular or rectangular
MaterialsStainless steel, cast iron, structural steel, GRP
ConfigurationSingle-leaf or double-leaf; top-hinged
InstallationDrainage outfalls on rivers and tidal waterways

04 / Sluice Gates

Flat Slide Gate

Applications

Flat slide gates are widely used in reservoirs, pumping stations, wastewater treatment plants, and other hydraulic structures for routine operation, emergency closure, and isolation during maintenance.

Design and Construction

  • Type: Flat gate leaf that moves linearly within guide slots to open or close a water passage.
  • The assembly consists of the gate leaf, the gate frame, and the operating mechanism. Straightforward construction allows easy fabrication and maintenance.
  • Welded construction: Available in various configurations. Rubber seals provide watertight closure while accommodating slight elastic deformation of the gate body.
  • Operation: Compatible with wire rope hoists, hydraulic actuators, screw hoists, and mobile hoisting equipment.

Technical Specifications

ParameterSpecification
ComponentsGate leaf, gate frame, operating mechanism
ConstructionWelded structure
SealsResilient rubber
FunctionsService, emergency closure, maintenance isolation
OperationWire rope, hydraulic, screw, or mobile hoist

05 / Sluice Gates

Motorized Adjustable
Weir Gate

Applications

The motorized gate allows the water level to be adjusted to the desired setting within its operating range. Controls are integrated into the electric actuator, eliminating the need for a separate control cabinet.

Design and Construction

  • Type: Adjustable weir gate supplied as a complete, compact assembly.
  • The supply includes the operating mechanism, threaded stem, stem protection cover, and all accessories, fasteners, and spare parts required for safe, efficient, and reliable operation.
  • The stainless steel gate features seals on all four sides and is designed for water pressure acting from one side only, unless otherwise specified.
  • Actuator-mounted controls remove the need for a separate control cabinet.

Technical Specifications

ParameterSpecification
SupplyComplete assembly with actuator, stem, cover and accessories
MaterialStainless steel
SealingFour-sided seals
Pressure directionOne side, unless otherwise specified
ControlsIntegrated in the electric actuator

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