At Grafton Pipe Fittings, we take pride in manufacturing and supplying premium-quality Blind Flanges that meet global industrial standards. These flanges are primarily used to seal the ends of piping systems or pressure vessel openings, ensuring the safe and efficient transport of fluids and gases across a wide range of industries. The ASTM A105 standard, which covers carbon steel forged fittings suitable for high-temperature service, and the UNS K03504 material grade, make our blind flanges an optimal choice for demanding operational conditions.

Blind flanges are designed without a bore, making them essential for blanking off pipelines, valves, or pressure vessel openings. They can also be used to isolate a section of pipe for maintenance or expansion. Our Blind Flanges offer excellent strength, pressure resistance, and leak-proof sealing, even under extreme temperatures. Grafton Pipe Fittings ensures that each flange is precision-manufactured using superior raw materials and cutting-edge forging techniques to meet international specifications such as ANSI B16.5, ASME B16.47, DIN, EN, and ISO standards.

The use of ASTM A105 Blind Flanges is widespread in industries including oil and gas, petrochemical, water treatment, and marine engineering. These flanges are compatible with both welded and threaded systems and are ideal for both high-pressure and high-temperature environments. The UNS K03504 grade ensures excellent mechanical properties and toughness. Our blind flanges undergo rigorous quality control, including hydrostatic testing, ultrasonic examination, and third-party inspection, ensuring consistent compliance with customer and project requirements.

Grafton Pipe Fittings supplies Blind Flanges in a wide range of sizes, pressure ratings (Class 150 to 2500), and face types such as Raised Face (RF), Flat Face (FF), and Ring-Type Joint (RTJ). We also offer custom fabrication and machining based on client drawings or special requirements. To guarantee quality and traceability, each product is accompanied by a Material Test Certificate (MTC) as per EN 10204 3.1 or 3.2 standards.

Specification Of Blind Flanges

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