China Products List

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Small cast iron sluice gates are water flow control devices primarily made of cast iron, widely used in hydraulic engineering, urban water supply and drainage, and industrial water treatment. Their core structure consists of a gate frame, gate leaf, guide rails, sealing device, and hoisting mechanism. The hoisting mechanism drives the gate leaf to lift or lower, enabling water level regulation or flow interception. Structural FeaturesMaterial: Made of HT250 gray cast iron or ductile cast iron, compliant with industry standards CJ/T3006-92 and DL/T5018-2004.Design: Gate leaf shapes are categorized into flat (PZ) and arched (PGZ) types, with arched designs reducing hydraulic pressure load.Sealing: Utilizes copper alloy or rubber sealing strips, achieving bidirectional water stoppage through wedge block devices, with leakage controlled at 0.03-0.07 L/m·s. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:A unidirectional cast iron sluice gate is a hydraulic control device made of cast iron that only allows water flow in one direction. It is primarily used for water level regulation and anti-backflow protection in water conservancy projects such as rivers and reservoirs. Structural FeaturesThe unidirectional cast iron sluice gate consists of a gate frame, gate leaf, guide rails, sealing strips, and a transmission device. It is mostly made of gray cast iron or ductile cast iron, featuring high structural strength, strong wear resistance, and excellent sealing performance. Its core component, the gate leaf, is manufactured using an integrated casting process to ensure rigidity and pressure-bearing capacity. The guide rails ensure stable movement of the gate leaf, while the sealing strips achieve bidirectional water-stop effects through wedge block devices. Function and ApplicationThis gate is driven by a hoist for opening and closing, allowing water flow in only one direction (e.g., from upstream to downstream). It is commonly used in river diversion, reservoir discharge, or anti-backflow protection in wastewater treatment. For example, in urban water supply and drainage systems, it prevents sewage from flowing back into water source pipelines, ensuring water supply safety. Installation and MaintenanceDuring installation, the gate must be hoisted into the groove as a whole, and the sealing surface gap must be adjusted to within 0.1mm through secondary concrete pouring. Regular maintenance involves lubricating transmission components and checking sealing performance to ensure effective water-stop functionality. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The arc-shaped cast iron gate is a curved water flow control device primarily made of cast iron, widely used in water conservancy projects such as reservoirs, rivers, and hydropower stations. It regulates water levels and intercepts flow by driving the gate plate to rotate via a hoist. Structural FeaturesThe arc-shaped cast iron gate adopts an external arc design, offering high structural strength and uniform stress distribution. The main materials are typically gray cast iron or ductile cast iron. The gate consists of components such as the frame, gate plate, guide rails, and sealing strips. The sealing surface is inlaid with copper strips or rubber, achieving bidirectional water sealing through a wedge block device, with gaps controllable within 0.1 mm. Function and ApplicationThis gate is suitable for working conditions requiring bidirectional pressure resistance, such as urban water supply and drainage, agricultural irrigation, and flow interception in hydropower stations. Its external arc design optimizes hydraulic performance, reduces the hoisting force, and minimizes operational noise. Installation and MaintenanceInstallation requires embedding steel plates or bolts to secure the base and synchronizing with the hoist for control. Regular daily inspections of sealing strip wear are necessary, and adjustments to the wedge block device should be made to restore water sealing performance. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The inclined pull-type cast iron gate is a flow control device used in water conservancy projects such as reservoirs, rivers, and hydropower stations. It regulates water levels and intercepts flow by driving the gate plate to lift or lower via a hoist. Its structural features are as follows:Structural CompositionIt mainly consists of a gate frame, gate plate, lifting seat, tight inclined iron, and rod system. The gate frame serves as the supporting component, fixed to the gate pier and secondary concrete of the gate base with anchor bolts, transferring water pressure to the main structure. The gate plate is the water-retaining component directly bearing water pressure, made of cast iron (such as HT250 gray cast iron or ductile iron), complying with industry standards CJ/T3006-92 and DL/T5018-2004.Sealing DesignThe sealing structure uses bronze or copper alloy facings, combined with a wedge block device and water pressure to achieve bidirectional water stoppage. Water seepage can be controlled within 0.03-0.07 L/m·s. The gate plate closely fits the slide track of the gate frame to ensure smooth operation.Installation RequirementsDuring installation, it must be hoisted into the slot as a whole, and the sealing surface gap adjusted to within 0.1 mm through secondary concrete pouring. A matching hoist, such as a manual screw hoist or winch-type hoist, is required to meet different water head pressure needs (e.g., 15-50 m water head).Applicable ScenariosSuitable for water conservancy projects like reservoirs, rivers, and hydropower stations, it offers strong corrosion resistance and can adapt to environments such as sewage and seawater. Its inclined pull-type design optimizes water stoppage effectiveness, reduces sealing surface wear, and simplifies maintenance. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Copper-inlaid cast iron round gates are widely used in municipal, water conservancy, industrial, and other fields as flow control devices. Their main features are as follows:Structure and MaterialMade of gray cast iron or ductile iron, the main body features a circular structure with copper alloy strips or rubber embedded in the sealing surface. The guide rail length accounts for 1/2 to 1/3 of the total height, and the external arc design ensures uniform stress distribution. The gate and frame employ a bidirectional pressure-bearing structure, supporting wedge adjustment for sealing to compensate for gaps.Technical ParametersPressure Rating: Nominal pressure ≤ 0.1 MPaSealing Performance: Forward leakage ≤ 0.7 L/min·m, sealing surface gap ≤ 0.1 mmTemperature Range: -20°C to 120°CMaximum Head: Typically 10 meters (higher with special customization)Installation and MaintenanceSupports embedded steel plate or bolt installation and requires linkage with a hoist for control. Routine maintenance involves checking the precision of transmission components and the sealing condition.Application ScenariosPrimarily used in municipal water supply and drainage, sewage treatment, hydraulic hubs, and industrial water treatment projects, such as urban pipeline network junction wells, pump station inlets, and river flow interception. They enable remote or on-site control for water flow cutoff and water level regulation. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Copper-inlaid cast iron gates are devices used in hydraulic engineering for flow interception and water level regulation, primarily applied in water supply and drainage, flood control, irrigation, sewage treatment, and other fields. They comply with the general standards of the Ministry of Construction and the American AWWA standards. Structural FeaturesManufactured from gray cast iron or ductile iron, equipped with stainless steel bolts and copper alloy/rubber sealing structures, they feature high pressure-bearing capacity (forward/bidirectional 10-meter water head) and corrosion resistance (-20°C to 120°C). The external arc design optimizes stress distribution, achieving planar contact sealing through wedge devices and copper strip seals, with a gap ≤0.1 mm. The guide rail length is 1/2 to 1/3 of the gate’s full opening height to enhance stability. Performance ParametersSealing Performance: Forward leakage ≤0.7L/m·min, reverse ≤1.25L/m·minDrive Method: Supports manual, electric, and hydraulic hoistsApplicable Media: Sewage, seawater, clean water, and other media with pH 5-10Installation Method: Embedded steel plate or bolt fixation Application ScenariosSuitable for municipal engineering (water supply and drainage pipelines, pump stations), hydraulic engineering (river flow interception), industrial sectors (metallurgy, chemical, power), and other occasions requiring concealed installation. The non-rising stem design is particularly suitable for scenic area landscapes and road infrastructure. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Cast iron flap gate is a type of check valve that automatically controls opening and closing using the pressure difference inside and outside the pipeline. It is primarily used to prevent backflow of external water and is widely applied in fields such as water conservancy and municipal sewage. Structural CompositionIt consists of four parts: valve seat, valve plate, sealing ring, and hinge. Made of cast iron, it features a tight and reliable structure. The valve plate closes with the assistance of its own weight or buoyancy, while the sealing ring ensures leak-proof performance. Working PrincipleIt automatically opens for discharge when the internal water pressure of the pipeline exceeds the external pressure, and closes automatically when the external water level is higher than the internal level. This check valve characteristic effectively prevents tidal water from rivers from flowing back into drainage pipelines. Applicable ScenariosSuitable for media such as water, sewage, and seawater. Installation methods include flange connection or concrete embedding, supporting both circular and square outlets. Performance AdvantagesEnergy Efficiency: No manual operation required; it opens and closes automatically based on water pressure, reducing energy consumption. Durability: Cast iron material ensures a long service life with simple maintenance. Convenience: Simple structure, no external force needed for switching, making it suitable for applications in water conservancy, municipal sewage, urban flood control, and drainage. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Ductile iron gates are water flow control devices made from ductile iron, featuring high strength, high wear resistance, and excellent sealing performance. They are widely used in hydraulic engineering, water supply and drainage systems, and other fields.Material and StructureManufactured from HT250 or ductile iron, complying with CJ/T3006-92 and DL/T5018-2004 standards. Key components have reserved corrosion allowances and undergo stress relief through aging treatment. The structure includes gate frames, gate leaves, lifting seats, etc., categorized by shape into flat (PZ) and arched (PGZ) types. The PGZ type employs a 60-degree central angle design to reduce water pressure load.Sealing and Water StoppageThe sealing structure uses inclined iron or copper alloy facings, combined with wedge devices to achieve bidirectional water stoppage. Water leakage can be controlled within 0.03-0.07 liters per minute per meter. The gate leaf periphery is equipped with cast iron borders and transverse stiffeners to enhance rigidity, ensuring smooth operation.Installation and MaintenanceRequires overall hoisting into the slot and adjustment of the sealing surface gap to within 0.1 mm through secondary concrete pouring. Regular lubrication and anti-corrosion maintenance are necessary. Suitable for small and medium-sized hydraulic engineering, can be manufactured in segments and assembled on-site. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The bidirectional water-stop cast iron copper-inlaid gate is a key equipment used in water supply and drainage, flood control, sewage treatment, and other engineering projects. It features bidirectional pressure-bearing and bidirectional water-stop functions, preventing media backflow. Its core structure includes a gate frame, gate plate, sealing strip, guide rail, and adjustment mechanism, made of cast iron to ensure strength and corrosion resistance. Structural FeaturesMaterial: The main body uses gray cast iron or ductile iron, with copper or rubber inlaid on the sealing surface. The outer arc design enhances uniform stress distribution. Sealing Performance: The sealing gap is adjusted to ≤0.1mm via a wedge device, with forward leakage ≤0.7L/m·min and reverse leakage ≤1.25L/m·min. Installation: Supports embedded steel plate or bolt fixation, compatible with manual/electric/hydraulic hoists. Performance ParametersPressure-Bearing Capacity: Maximum forward/reverse head of 10 meters, nominal pressure ≤0.1MPa. Operating Temperature: -20℃ to 120℃, suitable for various media such as sewage and seawater. Opening/Closing Speed: 0.2-1.5 meters per minute, supports remote control. Application ScenariosPrimarily used in municipal water supply and drainage, river cutoff, sewage treatment, industrial water treatment, and other scenarios requiring bidirectional water-stop to avoid sewage backflow risks. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The copper-inlaid cast iron square gate is a hydraulic engineering device that combines a cast iron main body with copper sealing elements, primarily used for flow interception, water level regulation, and medium control. It features high strength and corrosion resistance. Structural CompositionIt consists of a gate frame, gate leaf, guide rails, sealing strips, transmission screw rod, and wedge adjustment mechanism. The gate frame and leaf are made of gray cast iron or ductile iron, with guide rails fixed by stainless steel bolts. The sealing surface is inlaid with copper alloy or rubber strips, achieving planar contact sealing through precision machining. Core Functions‌Bidirectional Pressure Resistance‌: Forward pressure resistance of 10 meters water head, reverse pressure resistance of 10 meters water head;‌Sealing Performance‌: Sealing gap ≤0.1mm, forward leakage ≤0.7L/m·min, reverse leakage ≤1.25L/m·min;‌Corrosion Resistance‌: Suitable for environments from -20°C to 120°C, applicable to media such as sewage and seawater;‌Installation Method‌: Supports embedded steel plate or bolt fixation, compatible with manual, electric, or hydraulic hoists. Application ScenariosWidely used in municipal water supply and drainage, flood control and drought relief, hydraulic hubs, industrial pipelines, and wastewater treatment, particularly suitable for concealed installation scenarios (such as scenic areas and road infrastructure). more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Cast iron spiral gates are devices used to control the flow of solid particles or powdered materials, primarily composed of a frame, gate plate, screw rod, and other components. The opening and closing action is achieved by manually rotating the screw rod to drive the horizontal movement of the gate plate. ‌Structural Features‌‌Frame and Material‌: Made of carbon steel with anti-corrosion surface coating, capable of withstanding impacts from non-viscous solid materials. ‌Opening and Closing Mechanism‌: The gate plate is driven horizontally by rotating the screw rod, featuring a simple structure and flexible operation. ‌Sealing Design‌: Some models are equipped with a bidirectional sealing structure, effectively cutting off material flow. ‌Application Scenarios‌Mainly used in industries such as building materials, metallurgy, mining, power, chemical, and glass manufacturing. Suitable for flow regulation at the top or bottom of storage bins and in conveying pipelines, allowing real-time adjustment of opening degree and adaptation to various installation angles. more>

Category:Hardware & Tools/Fasteners & Connectors/Other Fasteners & Connectors

Product Description:The side-crank screw hoist is a manually operated flat gate hoisting device, driven by human-powered cranking. It features anti-theft water functionality and a self-locking mechanism, making it suitable for small to medium-sized hydraulic engineering projects.Structural FeaturesComposed of a housing, support frame, screw rod, hand crank, and other components, it achieves gate opening and closing through manual cranking. Its core component is the threaded rod structure, which converts rotational motion into linear motion to drive the gate's lifting and lowering.Applicable ScenariosPrimarily used in areas without power supply, such as water conservancy and hydropower, municipal construction, and agricultural water conservancy. It meets gate control requirements in special environments like plains and mountainous regions.Installation RequirementsDuring installation, the foundation plane must be level at 180°, with the screw axis perpendicular to the horizontal plane of the gate platform beam. The deviation of the longitudinal and transverse centerlines should not exceed ±3mm.Performance ParametersCapacity Range: 0.3T–100T (varies significantly by model)Operation Method: Manual side-crank type (human-powered operation)Anti-Theft Design: Equipped with an anti-theft nozzle and specialized tools to prevent water leakage more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Flat cast iron gates are planar structural water flow control devices primarily made of cast iron, widely used in hydraulic engineering and municipal facilities. Structural CompositionMainly composed of gate frame, gate leaf, lifting seat, and sealing inclined iron. The gate frame serves as the supporting structure and sliding track for the gate leaf, fixed in the secondary concrete of the gate pier and base slab via anchor bolts, evenly transferring water pressure to the main structure. The gate leaf is the water-retaining component directly bearing water pressure, driven by hoisting machinery to adjust water levels through lifting and lowering. Function and ApplicationPrimarily used for flow control, water level regulation, and water retention, commonly seen in hydraulic projects such as rivers, reservoirs, and hydropower stations, as well as in municipal water supply and drainage, and agricultural irrigation. Its planar structure minimizes flow resistance, making it suitable for small to medium-sized hydraulic projects. Material and SealingManufactured from gray cast iron or ductile cast iron, the sealing structure employs inclined iron or copper alloy facings. A wedge block mechanism, combined with water pressure, enables bidirectional sealing, with leakage controlled within the range of 0.03–0.07 L/m·s. Installation and MaintenanceInstallation requires overall hoisting into the slot followed by secondary concrete pouring, adjusting sealing surface gaps to within 0.1 mm. Regular lubrication and anti-corrosion treatment are necessary to ensure smooth operation and extend service life. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Flanged cast iron gate valves are a type of cast iron gate valve that uses flanged connections, primarily used for blocking or connecting pipeline media. They feature a compact structure, reliable sealing, and are suitable for controlling media such as water, steam, and oil. Structural FeaturesMaterial: The valve body is made of gray cast iron or ductile cast iron, with some models using cast steel to enhance pressure-bearing capacity. Sealing Design: The sealing surface employs stainless steel and hard alloy materials, combined with flexible graphite packing to ensure sealing performance. The gate is surrounded by a cast iron frame and transverse ribs to improve rigidity and wear resistance. Drive Methods: Supports manual, electric, pneumatic, and other drive methods for flexible operation. Application ScenariosSuitable for blocking control of industrial pipeline media in petroleum, chemical, and thermal power plants. Used in water conservancy, flood control, water supply, and drainage projects for water level regulation and flow control. Technical ParametersWorking Pressure: Up to 1.0 MPaWorking Temperature: Generally ≤200°C, with some models capable of withstanding higher temperatures (e.g., cast steel models can withstand up to 600°C). Applicable Media: Water, steam, oil, and some corrosive media (such as coal gas). This valve complies with national standards such as GB/T12234, with a nominal diameter range of DN50 to DN700, suitable for various pipeline specifications. more>

Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:A hydraulic steel dam is a hydraulic engineering facility that uses a hydraulic drive system to control the rotation or lifting of steel gates, combining both water retention and flood discharge functions. Its core structure includes a steel gate body, a hydraulic drive system, and embedded components, with lifting or rotating actions achieved through direct hydraulic cylinder actuation. Structure and Working PrincipleThe hydraulic steel dam consists of a steel plate welded gate body, a hydraulic drive system (including oil cylinders and pump stations), and embedded fixtures. The gate body is continuously arranged along the dam axis without intermediate support piers. The hydraulic system drives the gate body to rotate or lift by controlling the extension and retraction of the oil cylinders, enabling precise water level regulation. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Ductile iron gates are flow control devices primarily made from ductile iron, widely used in water conservancy projects, urban water supply and drainage, and industrial water treatment. They regulate water levels and intercept flow through the lifting and lowering of the gate plate driven by a hoist. Material and StructureManufactured from ductile iron, the material offers high strength and strong corrosion resistance, suitable for environments ranging from -20°C to 120°C and sewage media. The gate body consists of components such as the frame, gate plate, guide rails, and sealing strips. The sealing surface is made of copper alloy or rubber, achieving bidirectional water stoppage through a wedge mechanism with a gap ≤0.1 mm. Function and ApplicationPrimarily used for intercepting flow and regulating water levels in projects like reservoirs, rivers, and hydropower stations, they also serve functions such as diversion, confluence, and flow direction switching. In municipal engineering, they are used for water supply and drainage control, while in industrial settings, they are applied in sewage treatment, flood prevention, and other scenarios. Installation and MaintenanceRequires overall hoisting into the slot and adjustment of the sealing surface gap with secondary concrete pouring. Regular lubrication and anti-corrosion treatment are necessary for daily maintenance. Operation methods include manual, electric, or pneumatic, adaptable to various working condition requirements. more>