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API 6A Type 6BX Flange

API 6A Type 6BX Flange is a heavy‑duty high‑pressure sealing connector for critical wellhead and fracturing manifold applications, built for extreme pressure and harsh corrosive service, fully compliant with API 6A and NACE MR0175 standards. Compared with standard 6B flanges that rely only on ring gaskets, this high‑performance flange features an integral metal‑to‑metal sealing design and reinforced flange body, reliably handling working pressure up to 25,000 psi. Its precisely machined sealing faces and rigid structural design deliver superior sealing stability under pressure fluctuation, adapting to offshore and high‑pressure fracturing environments, whereas ordinary 6B flanges cannot maintain long‑term sealing integrity under such demanding operating conditions.

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Jiangsu Hongtai Petrochemical Machinery Co., Ltd. is located in Funing Economic Development Zone beside the Yellow Sea. Founded in 2006, it has grown into a nationally recognized high-tech enterprise specializing in R&D, manufacturing and technical services of petroleum machinery.

Covering nearly 100,000 square meters with over 200 professional staff, the firm is equipped with more than 300 core production machines and 1,000 testing instruments. It annually produces 3,000 sets of high-pressure wellhead assemblies with an annual output value exceeding RMB 300 million.

Boasting a provincial R&D team and long-term university-industry cooperation, the company owns over 100 national patents. Its CNAS & CAL-certified lab and imported facilities guarantee reliable product performance. It holds API 6A, API 16C, API 5CT, API Q1, ISO 9001 and special equipment manufacturing licenses, and participates in drafting national industrial standards. Over 20% of staff hold intermediate or higher technical titles. Upholding integrity, innovation and professionalism, we deliver full-lifecycle solutions and seek win-win partnerships worldwide.

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