Product Description: This large diameter weld neck flange is made of high-quality Incoloy 800 nickel alloy steel, strictly complying with ASME B16.5 standard, with a pressure rating of 300lbs and FF (Flat Face) design. It features excellent high-temperature resistance, corrosion resistance and high pressure-bearing capacity, specially designed for industrial pipeline connections. The weld neck structure ensures firm connection and good sealing performance, suitable for harsh working environments requiring large-diameter pipeline connections.
Key Parameters: Material: Incoloy 800 Nickel Alloy Steel; Standard: ASME B16.5; Type: Weld Neck Flange; Pressure Rating: 300lbs; Face Type: FF (Flat Face); Diameter: Large Diameter (customizable); Connection Type: Welded; Surface Treatment: Anti-corrosion Coating, Polishing (optional); Working Temperature: -50℃ to 800℃; Applicable Medium: High-temperature fluids, corrosive media, industrial gases.
Application: Widely used in industrial pipeline systems requiring large-diameter connections, including petroleum refining, chemical processing, power generation, metallurgy, and offshore oil and gas platforms. It is especially suitable for high-temperature, high-pressure and corrosive working conditions, such as boiler systems, heat exchangers, and large-scale pipeline transmission projects.
Product Advantages: High-quality Incoloy 800 nickel alloy steel provides excellent high-temperature resistance and corrosion resistance, adapting to harsh industrial environments; strictly complies with ASME B16.5 standard, stable quality and meets international industrial flange requirements; 300lbs pressure rating ensures strong pressure-bearing capacity; FF flat face design enhances sealing performance, preventing media leakage; weld neck structure ensures firm connection and good load-bearing capacity; large-diameter design fits various large-scale pipeline connection needs.
Product Functions: Realizes firm and sealed connection of large-diameter industrial pipelines, ensuring safe transmission of media; withstands high temperature and high pressure, maintaining stable performance in harsh working conditions; resists corrosion of various industrial media, prolonging service life; FF flat face design ensures tight sealing, avoiding media leakage and ensuring production safety; provides reliable connection support for long-term operation of industrial pipeline systems.
User Manual: Before installation, check the flange surface, sealing face and welding neck for scratches, corrosion, deformation or defects; clean the flange sealing face and welding end to remove impurities, oil stains and oxide layers; align the flange with the pipeline accurately, and weld firmly according to welding standards; tighten bolts evenly to ensure tight sealing; conduct pressure test and leakage test after installation to confirm compliance.
Precautions: Strictly use within the specified pressure (300lbs) and temperature range to avoid flange damage and media leakage; avoid collision and scratch during transportation and installation to protect the sealing face and anti-corrosion layer; store in a dry, ventilated place, away from moisture, high temperature and corrosive substances; regular inspection for corrosion, looseness or damage, and maintain or replace in time; professional welding and installation are required to ensure connection accuracy and safety.
Delivery Issues: We will arrange delivery within 7-15 working days after receiving the order; delivery methods include sea, air and express, optional according to customer needs (sea transportation is recommended for bulk large-diameter flanges); a tracking number will be provided for you to check the delivery status at any time.
Payment Issues: Acceptable payment methods: T/T, L/C, Western Union, PayPal; Payment terms: 30% advance payment, 70% balance before delivery; For large orders of large-diameter flanges, flexible payment terms can be negotiated.
Packaging Issues: Packaging: Wooden cases, anti-corrosion and anti-collision packaging; Each flange is wrapped with anti-scratch, anti-rust film to protect the sealing face and surface; The packaging is sturdy, shockproof and moisture-proof, suitable for long-distance sea transportation and industrial flange storage, especially for large-diameter products to prevent deformation.
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