China Products List

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, primarily used in reservoirs, rivers, and hydraulic engineering projects. It features bidirectional sealing and bidirectional opening/closing functions. Structural FeaturesMade of cast iron materials (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 rib plates around the edges to enhance rigidity. The sealing system uses inclined iron or copper alloy facings, combined with wedge devices to achieve bidirectional water-stop, with leakage controlled within 0.03-0.07 L/m·s. Functions and ApplicationsSuitable for water release control at 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 of 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 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预留 corrosion allowance, regular lubrication, and anti-corrosion maintenance more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:High-pressure cast iron gates are critical equipment used in hydraulic engineering, primarily for controlling water flow, opening and closing operations, and regulating water levels. Their core features are as follows:Structural Characteristics‌Material‌: Manufactured from HT250 gray cast iron or ductile iron, complying with industry standards CJ/T3006-92 and DL/T5018-2004. Critical sections include corrosion allowances and undergo stress relief through aging treatment. ‌Structure‌: Composed of gate frame, gate leaf, lifting seat, and tight-closing inclined iron components. The gate leaf directly withstands water pressure, while the gate frame serves as a support structure and ensures proper alignment of sliding tracks. ‌Function and Application‌Sealing Design‌: Utilizes inclined iron or copper alloy facings, combined with wedge mechanisms and water pressure to achieve bidirectional sealing, with leakage controlled within 0.03-0.07L/m·s. ‌Applicable Scenarios‌: Widely used in reservoirs, rivers, hydropower stations, and other hydraulic engineering projects, supporting water level regulation, flow interception, and directional water flow control. ‌Installation and Maintenance‌Installation Requirements‌: Requires hoisting as a whole into the slot, followed by secondary concrete pouring to adjust sealing surface gaps to within 0.1mm. Regular lubrication and anti-corrosion maintenance are essential. more>

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

Product Description: more>

Category:Hardware & Tools/Castings/Iron Castings

Product Description:PZ Plane Cast Iron Gate is a 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 up and down via a hoist. Structural CompositionIt consists of components such as the gate frame, gate plate, lifting seat, and tight sealing inclined iron. The gate frame serves as a support and sliding track, fixed in the secondary concrete of the gate pier and base slab with anchor bolts, evenly transferring water pressure to the gate chamber structure. The gate plate is the water-retaining component directly bearing water pressure, with cast iron borders around its periphery and transverse stiffeners to enhance rigidity. Types and SpecificationsCategorized by shape into flat (PZ) and arch (PGZ) types. The PZ type is suitable for small to medium-sized projects, while the PGZ type, with its 60-degree central angle design, reduces water pressure load. Common specifications range from width × height: 300×300 to 800×800 mm, with nominal diameters covering DN200×200 to DN3000×3000. Sealing and Water StoppageUtilizes inclined iron or copper alloy facing structures, achieving bidirectional water stoppage through wedge devices and water pressure. Water leakage can be controlled within 0.03-0.07 liters/meter·second. The sealing surface gap is adjusted to within 0.1 mm to ensure tight contact between the gate plate and the sliding track. Materials and StandardsThe main materials are mostly HT250 gray cast iron or ductile cast iron. Manufacturing complies with CJ/T3006-92 and DL/T5018-2004 standards, with corrosion allowances reserved for key parts and stress relieved through aging treatment. more>

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

Product Description:ColorBlackOperating Temperature ℃-10~318Hardness (Shore A)75Tensile Strength (MPa)21.2Elongation (%)225Modulus (100% Modulus)5.7Compression Set % (200℃ /70h)15Characteristics"Wide chemical resistance High temperature resistance Low compression set"ApplicationsHigh-temperature furnaces, various valves, pumps, components with high corrosion resistance requirements, etc. more>

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

Product Description:ColorWhiteOperating Temperature ℃-10~200Hardness (ShoreA)80Tensile Strength (Mpa)15Elongation (%)155Modulus (100% Modulus)Compression Set % (200℃ /70h)22Characteristics"Excellent chemical resistance, no metal ion release, no indentation"ApplicationsWet process, partial dry process, MOCVD, etc. more>

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 Material‌Material‌: 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 Scenarios‌Specifications‌: 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预留 corrosion allowance, regular lubrication, and anti-corrosion maintenance  more>