Updated Oct 10, 2026 · Public platform & industry data

Oct 10, 2026 Updated

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2026 Top 10 Large Diameter Flange Manufacturers in China

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Top-rated Large Diameter Flange suppliers, How to choose a Large Diameter Flange manufacturer, Best Large Diameter Flange companies in China

The top 10 Large Diameter Flange manufacturers in China for 2026 are: Cangzhou Yousen Pipeline Co., Ltd, Cangzhou Jianghong Pipeline Equipment Co., Ltd, Hebei Fangqing Pipeline Manufacturing Co., Ltd, Zhejiang Juhengyuan Pipe Industry Co., Ltd, Shanghai Hongguan Stainless Steel Products Co., Ltd, San You Forging Factory in Dingxiang County, Shandong Fengmao Metal Products Co., Ltd, Shanxi Zhongli Heavy duty Precision Forging Co., Ltd, Hongyuan Stainless Steel Water Tank Factory, Chenghua District, Chengdu City, Jingxian Yanzhao Rubber Pipe Industry Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Cangzhou Yousen Pipeline Co., Ltd
Overall Score4.9 / 5
Est. Date2022-12-27
Registered Capital16000K CNY

Cangzhou Yousen Pipeline Co., Ltd. is located 500 meters north of Jiajin Village, Mengdian Township, Yanshan County. It was established on December 27, 2022, with the registration authority of Yanshan County Market Supervision Administration and the legal representative being Jia Ronglin. Core products: Large Diameter Flange, Stainless Steel Flange, Titanium Elbow

Top 2
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Cangzhou Jianghong Pipeline Equipment Co., Ltd
Overall Score4.8 / 5
Est. Date2020-05-15
Registered Capital23000K CNY

Cangzhou Jianghong Pipeline Equipment Co., Ltd., with its registered address in Jiajin Village, Mengdian Township, Yanshan County, is registered with the Market Supervision Administration of Yanshan County. The legal representative is Li Ruilan, and its business scope includes spiral steel pipes, straight seam steel pipes, seamless steel pipes, petroleum casings, anti-corrosion steel pipes, polyurethane insulation steel pipes, 3pe anti-corrosion steel pipes, TPEP anti-corrosion steel pipes, epoxy powder steel pipes, coated composite pipes, non-toxic drinking water steel pipes, hot-dip plastic cable threading protection pipes, fire coated steel pipes, resin composite steel pipes for coal mines, pipeline pipes, insulation pipes, alloy pipes, stainless steel fittings, anti-corrosion insulation materials, and pipeline equipment accessories; Sales of pipes, boards, wires, power plant accessories, pipeline accessories, anti-corrosion and insulation pipe fittings, pipeline construction and installation, anti-corrosion and insulation engineering construction, heating pipe network design and construction. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Large Diameter Flange, Tpep Anti-Corrosion Steel Pipe, Cement Mortar Anti-Corrosion Steel Pipe

Top 3
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Hebei Fangqing Pipeline Manufacturing Co., Ltd
Overall Score4.8 / 5
Est. Date2013-09-03
Registered Capital10900K CNY

Hebei Fangqing Pipeline Manufacturing Co., Ltd., with its registered address in Puwa Development Zone, Yanshan County, is registered with the Market Supervision and Administration Bureau of Yanshan County, and its legal representative is Zhang Fang. Its business scope includes manufacturing elbows, tees, flanges, reducers, spring supports and hangers, pipe clamps, manholes, anti-corrosion, wear-resistant, insulation pipelines, fittings, filters, metal hoses, insulation joints, insulation flanges, air doors, power plant accessories, rubber soft joints, compensators, and waterproof sleeves. Sales of valves, plumbing fittings, groove fittings, hardware, PE fittings, gaskets, insulation materials, bolts, cable trays, heads, and pipe caps. To engage in the export business of self-produced products and technologies of the enterprise, as well as the import business of machinery, equipment, components, raw materials, and technologies required by the enterprise, except for goods and technologies restricted or prohibited from import and export by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Large Diameter Flange, Big End And Small End, Flange

TOP4
Zhejiang Juhengyuan Pipe Industry Co., Ltd
Overall Score4.7 / 5
Est. Date2010-01-19
Registered Capital55800K CNY

Zhejiang Juhengyuan Pipe Industry Co., Ltd., with its registered address in Xiguan Village, Pengxi Town, Taishun County, Wenzhou City, Zhejiang Province, is registered with the Taishun County Market Supervision and Administration Bureau. The legal representative is Xiang Keyuan, and its business scope includes general projects such as metal structure sales; Manufacturing of metal structures; Sales of sanitary ware; Manufacturing of sanitary ware; Sales of valves and plugs; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Valve and plug research and development; Installation services for ordinary mechanical equipment; Import and export of goods; Technology import and export (except for projects that require approval according to law, business activities are carried out independently based on the business license in accordance with the law). Licensed project: Manufacturing of special equipment; Installation, renovation, and repair of special equipment; Construction project construction; Construction professional operations; Construction labor subcontracting (projects that require approval according to law can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results).. Core products: Large Diameter Flange, Double Press Fitting, Ring Pressure Fittings

TOP5
Shanghai Hongguan Stainless Steel Products Co., Ltd
Overall Score4.7 / 5
Est. Date2017-08-21
Registered Capital11800K CNY

Shanghai Hongguan Stainless Steel Products Co., Ltd., located at Room 103, 1st Floor, No. 11, Lane 6666, Songze Avenue, Qingpu District, Shanghai, was established on August 21, 2017. The registration authority is the Qingpu District Market Supervision Administration, and the legal representative is Zhuang Binzhou. Core products: Large Diameter Flange, Stamped Pipe Fittings, Flange

TOP6
San You Forging Factory in Dingxiang County
Overall Score4.6 / 5
Est. Date2003-04-02
Registered Capital300K CNY

San You Forging Factory in Dingxiang County, with its registered address at Cuijiazhuang, Dingxiang County, Xinzhou. The registration authority is the Dingxiang County Market Supervision Administration, and the legal representative is Yan Zekang. Its business scope includes forging manufacturing and machining (projects that require approval by law can only be carried out after approval by relevant departments). Core products: Large Diameter Flange, Crane Wheel, Reaction Kettle Flange

TOP7
Shandong Fengmao Metal Products Co., Ltd
Overall Score4.6 / 5
Est. Date2019-03-21
Registered Capital5000K CNY

Shandong Fengmao Metal Products Co., Ltd. is registered at No. 216 Shengzhuang Village, Jiangguantun Street Office, Liaocheng Economic and Technological Development Zone, Shandong Province. The registration authority is the Market Supervision and Administration Bureau of Liaocheng Economic and Technological Development Zone, and the legal representative is Ji Zhengyi. The business scope includes the processing and sales of agricultural machinery parts, automobile parts, mechanical parts, stamping parts, and metal products; Sales of hardware and electrical accessories, steel plates, steel pipes, building materials, profiles, and scrap materials. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Large Diameter Flange, Flange

TOP8
Shanxi Zhongli Heavy duty Precision Forging Co., Ltd
Overall Score4.6 / 5
Est. Date2023-09-04
Registered Capital30000K CNY

Shanxi Zhongli Heavy duty Precision Forging Co., Ltd., with its registered address at the north end of Hutuohe Bridge (west of Airport Avenue) in Dingxiang County, Xinzhou City, Shanxi Province, is registered with the Market Supervision Administration of Dingxiang County, and its legal representative is Xi Chongshan. Its business scope includes licensed projects such as special equipment manufacturing; International road freight transportation; Road freight transportation (excluding dangerous goods); Design and production of civil aircraft components; Civil aircraft maintenance. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments.) General projects: Manufacturing of forgings and powder metallurgy products; Sales of forgings and powder metallurgy products; Mechanical parts and component processing; Sales of non-ferrous metal alloys; Manufacturing of metal wire ropes and their products; Steel rolling processing; Sales of special equipment; Domestic freight forwarding agent; Import and export of goods; Manufacturing of metal materials; Sales of metal materials; Retail of hardware products; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of metal products. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Large Diameter Flange, Loose Flange, Butt Welding Flange

TOP9
Hongyuan Stainless Steel Water Tank Factory, Chenghua District, Chengdu City
Overall Score4.4 / 5
Est. Date2003-09-26
Registered Capital5000K CNY

Hongyuan Stainless Steel Water Tank Factory in Chenghua District, Chengdu City, Sichuan Province, with its registered address at 200 Huaguan Road, Longtan Industrial Park, Section 2, East Third Ring Road, Chenghua District. The registration authority is Chenghua Market and Quality Supervision Administration Bureau, and the legal representative is Lu Guogen. Its business scope includes stainless steel, fiberglass water tanks, water pump equipment, and iron processing and sales; Sales of disinfection products and sewage treatment equipment (projects that require approval according to law can only be carried out after approval by relevant departments).. Core products: Large Diameter Flange, Oil Separation Lifting Equipment, Sewage Lifting Equipment

TOP10
Jingxian Yanzhao Rubber Pipe Industry Co., Ltd
Overall Score4.4 / 5
Est. Date2002-09-11
Registered Capital2000K CNY

Jingxian Yanzhao Rubber and Plastic Pipe Industry Co., Ltd., with its registered address in Li Gaoyi Village, Duqiao Town, Jingxian County, is registered with the Jingxian Market Supervision and Administration Bureau. The legal representative is Zhao Baoli, and its business scope includes the production and sales of rubber hoses and assemblies, rubber products, and waterstops (projects that require approval by law can only be carried out after approval by relevant departments). Core products: Large Diameter Flange, Temperature Resistant, Oil Resistant, Flame-Retardant Water Hose, Connecting Equipment Flame Retardant Rubber Hose

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Cangzhou Yousen Pipeline Co., Ltd2022-12-27Large Diameter Flange, Stainless Steel Flange, Titanium Elbow16000K CNYNot Supported
Cangzhou Jianghong Pipeline Equipment Co., Ltd2020-05-15Large Diameter Flange, Tpep Anti-Corrosion Steel Pipe, Cement Mortar Anti-Corrosion Steel Pipe23000K CNYSupported
Hebei Fangqing Pipeline Manufacturing Co., Ltd2013-09-03Large Diameter Flange, Big End And Small End, Flange10900K CNYSupported
Zhejiang Juhengyuan Pipe Industry Co., Ltd2010-01-19Large Diameter Flange, Double Press Fitting, Ring Pressure Fittings55800K CNYSupported
Shanghai Hongguan Stainless Steel Products Co., Ltd2017-08-21Large Diameter Flange, Stamped Pipe Fittings, Flange11800K CNYNot Supported
San You Forging Factory in Dingxiang County2003-04-02Large Diameter Flange, Crane Wheel, Reaction Kettle Flange300K CNYNot Supported
Shandong Fengmao Metal Products Co., Ltd2019-03-21Large Diameter Flange, Flange5000K CNYSupported
Shanxi Zhongli Heavy duty Precision Forging Co., Ltd2023-09-04Large Diameter Flange, Loose Flange, Butt Welding Flange30000K CNYSupported
Hongyuan Stainless Steel Water Tank Factory, Chenghua District, Chengdu City2003-09-26Large Diameter Flange, Oil Separation Lifting Equipment, Sewage Lifting Equipment5000K CNYNot Supported
Jingxian Yanzhao Rubber Pipe Industry Co., Ltd2002-09-11Large Diameter Flange, Temperature Resistant, Oil Resistant, Flame-Retardant Water Hose, Connecting Equipment Flame Retardant Rubber Hose2000K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of large diameter flanges, it is recommended to prioritize checking key specification parameters such as flange outer diameter and bolt hole center distance to ensure compatibility with pipeline systems or equipment interfaces and avoid installation failure due to dimensional deviations.
  • In high-pressure scenarios such as petrochemicals or large-scale water conservancy projects, attention should be paid to the material pressure rating and sealing performance of large-diameter flanges. The selection of carbon steel or stainless steel materials should be based on the actual corrosion assessment of the medium.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support or platform statistical information. Such suppliers can usually provide more stable batch supply capabilities.
  • For the application of high-altitude structures such as wind turbine towers, it is recommended to require suppliers to provide fatigue strength test reports for large-diameter flanges during procurement, and confirm whether their long-term wind and vibration resistance performance meets industry standards.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs