Category:Hardware & Tools/Castings/Iron Castings

Product Description:A unidirectional cast iron sluice gate is a type of cast iron gate designed with a sealing mechanism only on the upstream side for water flow control, primarily used to prevent backflow and regulate water levels. Its structural features include:Structural CompositionComposed of a gate frame, gate leaf, guide rails, sealing strips, and other components. The gate leaf is made of cast iron (such as HT250 gray cast iron or ductile cast iron), with surface treatments including copper inlay or rubber sealing surfaces.Functional CharacteristicsUnidirectional Sealing: A sealing device is installed only on the upstream side (i.e., the water inlet side), achieving bidirectional sealing through wedges and water pressure, with leakage controlled within 0.03-0.07 L/m·s.Pressure-Bearing Capacity: The designed water head typically does not exceed 5 meters, making it suitable for small to medium-sized hydraulic projects (such as rivers, reservoirs, hydropower stations, etc.).Installation Requirements: Requires hoisting into the groove as a whole unit, with adjustments made during secondary concrete pouring to ensure sealing surface gaps are within 0.1mm for effective sealing.Application ScenariosPrimarily used in scenarios requiring backflow prevention, such as pressure outlet wells in stormwater pumping stations and municipal water supply and drainage pipelines, to avoid river water backflow during high water levels. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Cast iron flap gate is a type of check valve installed at the end of drainage pipelines to prevent backflow of external water. Its core structure consists of four parts: valve seat, valve plate, sealing ring, and hinge, suitable for both circular and square outlets. Structure and Working PrincipleThe cast iron flap gate operates automatically based on the pressure difference inside and outside the pipeline: it opens for discharge when the internal water pressure exceeds the external pressure and closes automatically when the external water level is higher than the pipeline level. This design requires no manual operation and is highly energy-efficient. Materials and TypesMaterials: Traditionally made of cast iron, stainless steel, or structural steel, there is now a gradual shift toward composite materials (such as fiberglass reinforced plastic and high-density polyethylene). Types: Includes floating box type, flat plate type, sleeve type, hanging type, single/double door type, and energy-saving type, suitable for various media including water, sewage, and seawater. more>

Category:Hardware & Tools/Seals & Gaskets/Other Seals

Product Description:The YT® FEPM AFLAS O-ring is a fluororubber with a peroxide curing system, featuring a unique monomer structure that resists aggressive oils and provides excellent resistance, including to alkalis and steam. YT® FEPM AFLAS O-rings exhibit outstanding durability against strong chemicals such as acids, alkalis, and amines. This is an exceptional characteristic not found in general vinylidene fluoride rubbers like FKM. Moreover, they maintain this superiority even under high concentrations or temperatures of these chemicals, particularly demonstrating excellent durability against amine-based chemicals. The superior chemical resistance of the YT® FEPM AFLAS series includes: • ATF transmission fluid • Low-temperature steam • Amine-based fluids • Optimal mechanical properties • Optimal cost-performance ratio • Etching solutions • Petroleum drilling production more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Planar arch cast iron gates are widely used flow control devices in water conservancy, municipal, water supply, and drainage projects, with the following key features:Structure and MaterialManufactured from HT250 gray cast iron or ductile iron, compliant with CJ/T3006-92 and DL/T5018-2004 standards. The main structure is categorized as integral or assembled types; small and medium-sized gates can be segmented for on-site assembly. The gate frame employs a lattice-section design to optimize pressure-bearing performance, with cast iron borders around the gate leaf and transverse stiffeners to enhance rigidity.Sealing and WatertightnessEquipped with inclined iron or copper alloy facings, utilizing wedge mechanisms and water pressure to achieve bidirectional sealing. Water leakage can be controlled within 0.03-0.07 L/m·s. The wear-resistant sealing rubber ensures long-term performance; normal operation can be maintained by replacing sealing components after prolonged use.Specifications and ApplicationsSize range spans from 0.2×0.2 to 6.5×6.5 meters; double lifting points are adopted for outlets ≥3 meters. Suitable for forward pressure sealing, reverse sealing gates can be customized as needed. Installation requires hoisting the entire gate into the slot, with secondary concrete pouring to adjust sealing surface clearance to within 0.1mm.Performance and MaintenanceHigh corrosion resistance (pH=6-8 environments), easy operation, and low maintenance costs. Regular lubrication and anti-corrosion treatments are necessary; mortar residue should be avoided to prevent hindrance to opening and closing. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The integrated cast iron gate with hoist is a hydraulic device that combines the gate and the hoist into one unit. It is primarily used in water conservancy projects, municipal construction, and water supply and drainage systems, controlling water flow by driving the gate plate to lift or lower. Structural FeaturesMaterial: Mostly made of gray cast iron or ductile iron, offering wear resistance and corrosion resistance. Sealing Design: Utilizes an inclined iron or copper alloy-faced sealing structure, with water leakage controlled at 0.03-0.07 liters per meter per second, ensuring effective water retention. Drive Method: Supports manual, electric, or pneumatic operation. When used in conjunction with the hoist, it enables remote control. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Cast iron swing gate covers are hydraulic mechanical devices primarily used for flow control and water level regulation in hydraulic engineering, featuring bidirectional rotation capability. The following is a detailed introduction:Structure and Material?Material?: Made of gray cast iron or ductile iron, offering strong wear resistance and corrosion resistance. ?Components?: Includes gate frame, gate plate, guide rails, sealing strips, and other parts. Some models use bronze or stainless steel materials to enhance sealing performance. ?Drive MethodsOptional manual, electric, or pneumatic drives, used in conjunction with hoists, supporting remote control or automated operation. ?Specifications and Applicable Scenarios?Specifications?: Common sizes range from DN200 to DN400 (e.g., 200/300/400 series), with maximum dimensions up to DN3000×3000mm. ?Applications?: Widely used in hydraulic engineering such as rivers, reservoirs, urban water supply and drainage, and wastewater treatment, for regulating flow, controlling water levels, or diverting and combining flows. ?FeaturesSealing Performance?: Utilizes a wedge-shaped pressure block design, allowing adjustable sealing surfaces to ensure long-term stable water retention. ?Durability?: Features an integrally cast structure, long service life, and low maintenance costs. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The bidirectional water-stop cast iron gate is a flow control device used in scenarios such as sewage treatment and urban drainage. Its core features include:Structural CharacteristicsMade of cast iron materials (such as HT250 gray cast iron or ductile iron), complying with hydraulic industry standards. The gate consists of a gate frame, gate plate, guide rails, sealing strips, and other components. It achieves bidirectional water-stop through a wedge block device, with leakage controlled within 0.03-0.07 L/m·s.Sealing DesignUtilizes copper alloy or rubber soft sealing rings, combined with a metal water-stop pair, ensuring effective water-stop on both the upstream and downstream sides. Suitable for bidirectional flow scenarios such as sewage backflow.Installation and MaintenanceRequires overall hoisting followed by secondary concrete pouring, with the sealing surface gap adjusted to within 0.1 mm. Routine maintenance includes regular lubrication and anti-corrosion treatment. The lightweight design (weighing only one-third of conventional gates of the same specification) reduces maintenance costs.Applicable ScenariosCommonly used in sewage treatment plants, urban drainage pipelines, culverts, and other scenarios with high anti-backflow requirements. It can also be used for bidirectional flow control in rivers and reservoirs. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:A sliding cast iron gate is a type of cast iron gate that operates through slide channels and sliders to control the movement of the gate leaf. It is primarily used in hydraulic engineering to regulate water flow. Its structural features include:Structural CompositionIt consists of a gate frame, gate leaf, slide channel, sealing wedge, and other components. The gate leaf is made of cast iron materials (such as HT250 gray cast iron or ductile iron), with precisely machined surfaces to ensure sealing performance. The slide channels are embedded in the secondary concrete of the gate pier and base slab, evenly transferring water pressure to the main structure.Working PrincipleDriven by a hoist, the gate leaf slides along the slide channels to open or close the orifice. Sliders are installed on the side beams of the gate, moving along embedded tracks to ensure stable operation. Under the combined action of water pressure and the sealing wedge, the gate leaf tightly fits against the slide channels, achieving effective water sealing.Classification and ApplicationsBased on shape, it is categorized into PZ flat gates and PGZ arched gates. The PGZ type features a 60-degree central angle design to reduce hydraulic load. Sliding cast iron gates are suitable for hydraulic projects such as rivers, reservoirs, and hydropower stations, as well as urban water supply and drainage, wastewater treatment, and other scenarios.Materials and MaintenanceMade of highly corrosion-resistant cast iron materials, surface treatment complies with CJ/T3006-92 and DL/T5018-2004 standards. Routine maintenance requires regular inspection of lubrication, anti-corrosion measures, and fastener conditions to ensure sealing gaps are controlled within 0.1mm. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Cast iron sluice gates are water flow control devices primarily made of cast iron, composed of components such as the gate frame, gate leaf, and lifting seat. They are widely used in water conservancy projects such as reservoirs, rivers, and hydropower stations. The gate leaf is driven by a hoist to rise and lower, enabling water level regulation and flow interception functions.Core Advantages of Choosing Cast Iron Copper-Embedded Sluice Gates1. Exceptional Structural Strength and DurabilityMaterial Advantages: The gate body is cast from high-strength gray iron or ductile iron, offering extremely high compressive and bending strength, capable of withstanding significant water and soil pressure without deformation.Integral Structure: Typically cast as a single unit, the structure is robust and stable, suitable for openings of various sizes.2. Outstanding Sealing Performance (Core Advantage)Copper-Embedded Seal Seat: This is the key feature that gives the gate its name and its greatest highlight. A corrosion-resistant copper alloy (usually brass or stainless steel) seal seat is embedded on the sealing contact surface of the cast iron gate frame.Combination of Hard and Soft for Excellent Sealing: The sealing surface of the gate leaf (cast iron) contacts the embedded copper seat. This "hard-to-soft" or "hard-to-hard" precision fit ensures excellent sealing when closed, with leakage rates far below national standards.Wear Resistance and Self-Lubrication: The copper alloy offers good wear resistance and some self-lubricating properties, ensuring reliable sealing even after long-term opening and closing friction.3. Strong Corrosion and Wear ResistanceDual Protection:Cast Iron Part: Typically treated with high-performance anti-corrosion coatings, such as epoxy asphalt paint, epoxy resin coating, or hot-dip galvanizing, significantly enhancing corrosion resistance in harsh environments like sewage and seawater.Copper Seal Seat: The copper alloy itself has excellent corrosion resistance, particularly against water and atmospheric corrosion.Wide Applicability to Media: Especially suitable for urban sewage, industrial wastewater, seawater, and mildly corrosive media, with a lifespan far exceeding that of ordinary steel gates.4. Long Service Life and Low Maintenance CostsThanks to its robust structure and exceptional corrosion resistance, cast iron copper-embedded sluice gates have a very long service life, often lasting decades.Due to their high reliability and durable seals, daily maintenance requirements are minimal, significantly reducing operational and maintenance costs over their lifecycle.5. Flexible Installation MethodsCast iron copper-embedded sluice gates offer various installation forms, including wall-pipe type (embedded in walls or pipes), wall-mounted type (installed in front of walls), or flanged type (connected to pipe flanges), making them highly adaptable to engineering needs.6. Smooth Operation with Low Operating ForceThe sealing surface is precision-machined, resulting in a low friction coefficient. When designed with a rising stem, the threaded transmission part is above the water level, allowing easy lubrication and reducing the risk of clogging by debris. This ensures smooth operation and requires minimal operating torque. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:A bidirectional water-stop cast iron sluice gate is a flow control device that achieves bidirectional sealing through a bidirectional water-stop structure. It is primarily used in reservoirs, rivers, and hydraulic engineering projects, featuring bidirectional sealing and bidirectional opening/closing functions. Structural FeaturesMade of cast iron (such as HT200 gray cast iron or ductile iron), the main structure includes the gate frame, gate leaf, lifting seat, and sealing components. The gate frame serves as a sliding support structure and is fixed via secondary concrete pouring. The gate leaf adopts a flat or arched design (e.g., PGZ type), with cast iron borders and transverse stiffeners around the edges to enhance rigidity. The sealing system uses inclined iron or copper alloy inlays, combined with wedge devices to achieve bidirectional water-stop, with leakage controlled within 0.03-0.07 L/m·s. Functions and ApplicationsSuitable for controlling water release from reservoir bottom outlets, bidirectional river cutoff, and bidirectional flow regulation in special geographical environments. It supports both manual and electric operation modes. Its bidirectional water-stop design meets the dual needs of irrigation and flood discharge. During installation, a slope within 30° must be maintained, and secondary pouring ensures tight sealing surface contact. Technical ParametersDrive Method: Supports manual screw or electric operationSealing Performance: Forward leakage ≤ 0.7 L/min·m, reverse water head up to 10 metersMaterial and Corrosion Resistance: Cast iron base with stainless steel or copper alloy sealing surfaces, resistant to acid and alkali corrosion, operating temperature range -20°C to 120°CInstallation Requirements: Requires overall hoisting into the slot with預留 corrosion allowance, regular lubrication, and anti-corrosion maintenance  more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The concealed stem copper-inlaid cast iron square gate is a type of gate used in hydraulic engineering for intercepting flow and regulating water levels. The main body is made of cast iron, with sealing surfaces inlaid with copper alloy or rubber, featuring corrosion resistance and high pressure-bearing capacity. Structural FeaturesMaterial: The gate frame and gate leaf are made of gray cast iron or ductile iron, with sealing surfaces inlaid with copper alloy or rubber, achieving planar contact sealing after precision machining. Design: The external arc-shaped structure ensures uniform stress distribution, with guide rail lengths ranging from 1/2 to 1/3 of the gate height to enhance stability. Sealing: The sealing gap is adjusted via a wedge device, with forward leakage ≤0.7 L/m·min and reverse leakage ≤1.25 L/m·min. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:High-pressure cast iron gates are control devices used for deep-hole intakes to withstand high water head pressure, primarily applied in water conservancy and hydropower, municipal engineering, and water supply and drainage systems. Their core features include:Structural CharacteristicsDesigned with curved panels and primary-secondary beam grids, the gate body is made of cast iron or zinc-sprayed steel plates. The sealing surface can be inlaid with copper or stainless steel to enhance corrosion resistance. The sealing system uses P-type rubber water stops, with a designed forward water head capacity of up to 50 meters and a reverse pressure resistance of 20 meters. The leakage rate is ≤1L/h·m.Installation and MaintenanceInstallation requires thorough cleaning of the gate slot and strict control of welding quality. Maintenance involves regular lubrication of rotating components and adjustment of the braking stroke.Applicable ScenariosSuitable for deep-water holes in hydropower stations, municipal water supply and drainage pipelines, and hydraulic engineering projects requiring high pressure resistance. They effectively regulate water flow direction and pressure. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:The integrated cast iron gate with a hoist is a water control device that combines the hoist and the gate body, primarily used for water flow cutoff and regulation in water supply and drainage, flood control, and hydraulic engineering construction. Its core features include:Structural CharacteristicsIt adopts an external arc design with a rational structure and uniform stress distribution. It consists of two parts: the gate leaf and the gate frame, with the main material being gray cast iron or ductile iron, featuring a precision-machined planar contact sealing structure. The gate body can be designed as flat or arched, and larger-sized gates can adopt a segmented assembly structure.Function and ApplicationIt is used to block or facilitate water flow, with the hoist driving the gate plate to rise or lower for water level regulation and flow control. It is suitable for fields such as water conservancy and hydropower, municipal construction, and water supply and drainage. The normal leakage rate is ≤0.07 liters per meter per second, and it can withstand a certain reverse water head pressure.Sealing and AdjustmentIt uses bronze or rubber sealing strips, with the gap of the sealing surface adjusted (≤0.1 mm) via a wedge block device to ensure water retention. When sealing performance declines, it can be restored through wedge block adjustment.Drive MethodIt comes standard with a manual or electric screw hoist, supports remote control, and features an integrated design of the hoist and gate body, offering compact space usage and convenient maintenance. more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:Flat cast iron gates are small flat gates primarily used for regulating flow and controlling water levels, commonly found in municipal construction, agricultural irrigation, and water supply and drainage projects. Their structure consists of two parts: the gate leaf and the gate frame, made of cast iron, typically cast and machined as a single unit. Structural FeaturesMaterial and Processing: The gate body is made of cast iron materials (HT250 gray cast iron or ductile iron), cast as a single unit and precision-machined to ensure flatness and sealing performance. Sealing Design: Metal water stops or rubber sealing strips are used, with wedge block devices adjusting the sealing gap to ≤0.1mm, achieving bidirectional water retention. Gate Body Form: The panel can be designed as flat or arched to accommodate different water pressure requirements; for larger sizes, a segmented assembly structure can be adopted. Function and ApplicationTypically installed at channel or culvert inlets, they serve as working gates to regulate flow or as maintenance gates to close openings and block water. Compatible with manual, electric, hydraulic, and other hoisting methods, the drive mechanism connects the gate to the hoist via a transmission screw. more>

Category:Hardware & Tools/Seals & Gaskets/Other Seals

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Category:Hardware & Tools/Pipe Fittings/Tee Fittings

Product Description:The mobile hydraulic grab-type trash cleaning machine is primarily used for removing impurities and debris from water. It is suitable for the inlet and outlet of large and medium-sized structures such as water intakes at thermal and hydroelectric power plants, flood control and drainage pumping stations, and sewage and rainwater lifting pumping stations. Its core function is to block floating objects like construction waste and domestic garbage, ensuring the normal operation of pump impellers and reducing the load on subsequent treatment processes.Core FeaturesWide Applicability: Suitable for wide-channel intake screens or channel slag cleaning, with a cleaning depth of up to 50 meters.Compact Structure: Utilizes a hydraulic system to control the opening and closing of the grab, ensuring stable and reliable operation with low energy consumption.Easy Maintenance: The open structure facilitates inspection and repair, and with no submerged components, it extends the equipment's service life.Efficient Debris Removal: The grab design ensures no residue of debris, short annual maintenance cycles, and low operational noise. more>