The EN1092-1 Type 12 Flange (Hubbed Threaded Flange) is a critical connection component designed to meet the rigorous safety and performance requirements of the EU Pressure Equipment Directive (PED). At Jiangyin Zhonghai Precision Machinery Co., Ltd., we leverage our extensive forging heritage to manufacture this series in strict compliance with EN1092-1 specifications.
Our Type 12 flanges integrate high-density forged structures with advanced CNC machining. Whether you require standard dimensions or custom components based on specific blueprints, Zhonghai provides a complete in-house production line—from raw material forging and heat treatment to precision finishing and rigorous testing—ensuring maximum reliability for demanding industrial applications.
Core Advantages
·Certified Authority: ISO 9001 certified with PED (European Pressure Equipment Directive) and TS (China Special Equipment License) credentials, ensuring our products meet the technical standards for premium global markets.
·Integrated Production Excellence: With full in-house capabilities for forging, heat treatment, and machining, we control the metal grain flow to provide Type 12 flanges with superior fatigue resistance compared to standard cut products.
·Extreme Scale Capability: Our production range spans from DN10 to extra-large sizes up to 4 meters in diameter, with single-component weights reaching 10 tons.
·Agile Customization: We support everything from small-batch prototypes to mass production. By submitting your drawings or key parameters (OD, ID, thickness, hole pitch), we can rapidly evaluate and provide an optimized manufacturing solution.
Key Features
·Optimized Mechanical Properties: Tailored heat treatment processes ensure that yield strength, tensile strength, and impact toughness meet or exceed EN standards and client-specific requirements.
·High-Precision Machining: Equipped with CNC turning and drilling centers, we guarantee the coaxiality and flatness of threaded hubs and sealing faces (e.g., Type B Raised Face) for leak-free performance.
·Versatile Compatibility: Covering pressure ratings from PN6 to PN100 and above, our flanges are designed to perfectly mate with piping and valves compliant with EN1092-1 standards.
·Rigorous Quality Control: An independent QA department monitors every stage, offering Non-Destructive Testing (NDT) including Ultrasonic (UT) and Magnetic Particle (MT) inspection.
Applications
·Zhonghai's EN1092-1 Type 12 flanges are extensively used in:
·European Industrial Networks: Chemicals, refining, and gas transport systems following EU standards.
·Pressure Vessel Integration: Interfaces for boilers, heat exchangers, and high-pressure containers.
·Mechanical Equipment: Power system interfaces for pumps, valves, and heavy-duty machinery.
·Custom Engineering Projects: Tailored piping architectures for extreme conditions (High temperature, High pressure, Corrosive environments).
| Item | Technical Specifications |
| Standard | EN 1092-1 (Type 12 - Hubbed Threaded Flange) |
| Size Range (DN) | DN10 – DN600 (Standard); Custom sizes up to 4,000 mm |
| Pressure Ratings (PN) | PN6, PN10, PN16, PN25, PN40, PN63, PN100 |
| Materials | Carbon Steel: P245GH, P250GH, S235JR; Stainless Steel: 1.4301, 1.4404, 1.4571, etc. |
| Manufacturing Process | Free Forging, Die Forging, Ring Rolling + CNC Machining + Heat Treatment |
| Facing Types | Type A (Flat Face), Type B (Raised Face), etc. |
| Testing Capability | Dimensional Inspection, Tensile/Impact Testing, Hardness, NDT (UT/MT/PT) |
| Surface Treatment | Anti-rust Oil, Painting, Electro-galvanized, Hot-dip Galvanized |
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