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Product Name | Sanheng Hydraulic DIN 20411 20412 Metric Female 24° Cone O-ring Hose Fitting |
Code | 20411 20412 |
Material & Surface Treatment | Carbon steel (zinc plated Cr3+); Stainless steel (passivation) |
Application | Pipe connection（oil,water,gas） |
Technology | CNC machining |
Package | All adapters equipped with thread protective end caps, inside plastic bags, and then inside standard blank carton boxes. |
Custom Service | OEM & ODM available |
The Sanheng 20411 / 20412 Metric Female 24° Cone O-ring Hose Fitting serves as a critical connection component for demanding hydraulic fluid transmission systems. Engineered to strictly comply with ISO 12151-2 and DIN 3865 international standards, this fitting ensures flawless interchangeability with global hydraulic components. The design incorporates a precise 24° conical sealing surface paired with a resilient O-ring, engineered to prevent fluid loss in oil, water, and gas pipelines under varying pressure conditions.
The product line includes the 20411 series, specifically calibrated for 1SN and 2SN steel wire braided hoses, and the 20412 series, tailored for 4SP and 4SH steel wire spiral hoses. Covering common metric female thread specifications for industrial hydraulic systems, the series also extends beyond standard straight configurations to include 45° and 90° elbows, alongside specialized Light (L.T.) and Heavy (H.T.) series to accommodate complex routing requirements.
Part No. | Thread E | Hose Bore DN | Dash | Tube O.D | O Ring | A (mm) | C (mm) | S2 (mm) |
20411-12-04 | M12×1.5 | 6 | 04 | 6 | 4.5×1.5 | 26 | 1 | 17 |
20411-16-06 | M16×1.5 | 10 | 06 | 10 | 8.0×1.5 | 28 | 2 | 22 |
20411-22-08 | M22×1.5 | 12 | 08 | 15 | 12.0×2.0 | 32 | 2.5 | 27 |
20411-30-12 | M30×2 | 20 | 12 | 22 | 20.0×2.0 | 39 | 4 | 36 |
20411-52-24T | M52×2 | 40 | 24 | 42 | 38.0×2.5 | 38.5 | 4 | 60 |
Note: 20412 series for spiral hoses with the same thread and dimension parameters as 20411 series. | ||||||||
Designed with a highly precise 24° cone and O-ring double-sealing mechanism, this component is tailored for metric hydraulic connection systems requiring absolute leak-free performance. The dual-barrier approach ensures that even under severe pressure spikes or continuous mechanical vibration, the fluid remains completely contained. This structural geometry distributes mechanical stress evenly across the connection interface, preventing premature wear and extending the lifespan of the entire assembly.
Compatible with standard metric female threads, this fitting allows secure and stable connections with critical hydraulic components such as directional control valves, rigid pipes, and heavy-duty cylinders. The threads are cut with exacting tolerances, providing a smooth, tactile engagement during assembly that minimizes the risk of cross-threading or galling. This universal metric compatibility simplifies procurement and maintenance for global industrial operations.
The straight hose fitting design provides an optimized flow path for common hydraulic hose connections, minimizing fluid turbulence and pressure drops across the joint. The swaged construction ensures a permanent, tamper-resistant bond between the fitting and the hose, delivering exceptional pull-off resistance. The interior surface is machined to a mirror-like finish, reducing friction and preventing the accumulation of particulate matter within the fluid stream.
Manufactured from premium 45# carbon steel and finished with an environmentally compliant Cr3+ zinc plating, this option is engineered for general hydraulic system environments. The surface treatment provides a uniform, bright metallic sheen that is smooth to the touch, acting as a formidable barrier against ambient moisture and mild industrial contaminants. This material choice delivers excellent tensile strength, ensuring the fitting maintains its structural integrity under heavy mechanical loads.
For operations exposed to severe environmental stressors, the stainless steel variant undergoes a specialized passivation treatment to maximize its inherent corrosion resistance. This process removes free iron from the surface, creating a passive oxide layer that withstands prolonged exposure to salt spray, aggressive chemicals, and extreme temperature fluctuations. The visually distinct, matte-finished stainless steel provides unparalleled longevity in marine, petrochemical, and offshore applications, significantly reducing the frequency of component replacement.
This hydraulic hose fitting is deployed across a wide spectrum of medium and high-pressure fluid systems where strict sealing requirements are non-negotiable. The component's ability to maintain a secure connection under dynamic physical stress makes it an essential asset for demanding operational environments.
Construction Machinery: Utilized in the hydraulic pipeline connections of excavators, wheel loaders, and heavy-lift cranes. The fitting's vibration-resistant profile ensures continuous power transmission despite the severe mechanical shocks typical of earthmoving operations.
Industrial Equipment: Integrated into hydraulic presses, injection molding machines, and automated machine tools. The component adapts effortlessly to continuous, rapid-cycle working conditions, maintaining fluid pressure stability for precise machinery control.
Marine & Offshore: Applied within ship steering hydraulic systems and offshore drilling platform equipment. The specialized anti-corrosion surface treatments protect the structural integrity of the fitting against the relentless exposure to marine saltwater and harsh atmospheric conditions.
Fluid Transmission: Essential for oil, water, and gas pipeline transportation within the petrochemical, municipal water supply, and industrial drainage sectors. The leak-free design prevents hazardous environmental contamination and ensures efficient resource delivery.
The manufacturing process for this fitting relies on 100% CNC precision machining to guarantee an absolutely stable physical structure and exceptionally accurate thread dimensions. Every cut and contour is executed with microscopic precision, resulting in a component that feels substantial and meticulously crafted in hand. The threads exhibit a clean, burr-free profile that facilitates fluid, unbinding rotation during the assembly process.
During production, rigorous quality control protocols are enforced. Calibrated thread plug and ring gauges are systematically used to inspect thread sizing, ensuring guaranteed compatibility with standard threaded connections across global markets. To protect this precision engineering during transit, all adapters are equipped with durable thread protective end caps. The components are then sealed inside moisture-resistant plastic bags and packed into standard blank carton boxes, ensuring they arrive at the facility in pristine, ready-to-install condition. Furthermore, comprehensive OEM and ODM customization services are available, alongside complete hydraulic hose assembly solutions tailored to specific project blueprints.
The primary distinction lies in their precise hose compatibility. The 20411 series is engineered specifically for 1SN and 2SN steel wire braided hydraulic hoses, accommodating standard pressure requirements. Conversely, the 20412 series is purpose-built for 4SP and 4SH steel wire spiral hoses, designed to handle significantly higher pressure thresholds and severe mechanical demands. Selecting the correct series ensures exact matching for specific operational pressures.
It utilizes a metric female thread integrated with a 24° cone sealing structure and an O-ring. This specific geometry strictly conforms to ISO 12151-2 and DIN 3865 international standards, guaranteeing seamless interchangeability with global hydraulic system components. The metric threading ensures standardized installation, while the conical seal provides a reliable, mechanical barrier against fluid leakage under fluctuating pressure cycles.
Yes, we provide extensive customization options to meet specialized routing requirements. Beyond the standard straight design, the fittings can be manufactured in 45° and 90° elbow configurations, as well as Light (L.T.) and Heavy (H.T.) series. Additionally, we offer complete, ready-to-install hydraulic hose assemblies based on your specific operational parameters.
