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A butt-weld flange is a flange that is connected to a vessel or pipe using a fillet weld. It comes in two types: with neck and without neck. It is suitable for connecting medium and low-pressure vessels and pipes, and has the advantages of simple structure, easy installation, and low price.
A weld neck flange consists of a flange and a short neck. The neck transitions to the pipe or equipment via a circular tube using a fillet weld. During welding, a fillet weld is required between the inner hole of the flange and the outer wall of the pipe.
American Standard Weld Neck Flange
American Standard weld neck flanges are designed and manufactured according to American standards for connecting pipelines. They are connected to pipelines by welding and are suitable for numerous industrial fields, including petroleum, chemical engineering, metallurgy, aerospace, shipbuilding, etc., especially for high-pressure, high-temperature, corrosive media, or pipeline systems with high sealing requirements.
National standard butt weld flange
National standard butt weld flanges are manufactured according to national standards. They have a neck and a circular pipe transition, and are used to butt weld with pipes.
A blind flange, also known as a blank flange or cap flange, is a solid flange without a central hole. It is mainly used to temporarily or permanently close the end or branch of a pipeline system to prevent media flow or leakage. It plays an important role in isolating and sealing the pipeline system.
Connection method: Slip-on flange refers to a flange where the pipe end is inserted into the stepped inner part of the flange ring and welded at the pipe end and outer side. There are two types: with neck and without neck.
A threaded flange is a type of flange that connects directly to a pipe via internal or external threads, eliminating the need for welding. It relies on thread engagement to achieve sealing and fastening.
The weld ring loose flange is a special flange structure that connects the weld ring to the pipe through butt welding, and the flange body can be freely fitted onto the pipe. It combines high-strength connection and flexible installation characteristics, suitable for medium and high pressure, high temperature, and corrosive medium scenarios.
Shanxi Dingxiang Aohui Flange Forging Co., Ltd.
Shanxi Dingxiang Aohui Flange Forging Co., Ltd. was established in 2016 in Dingxiang, Shanxi, Asia's flange production base. It is a modern enterprise focused on flange forging, and has consistently upheld the philosophy of quality first for many years, building a reputation in the industry.
Company Establishment
Company Production and Testing Equipment
Quality Qualification Certification
Crafting exquisite products with ingenuity
Establish a comprehensive quality traceability system that records detailed information for each batch of raw materials, every production process, and every testing link, including operator, equipment number, testing time, and testing results.
Application Areas
Application Area
The company's products cover various types of flanges, widely used in various industries such as petroleum, chemical, power, shipbuilding, and machinery manufacturing. Whether it's standard specifications for general products or non-standard products customized according to specific customer requirements, we have the capability to complete production effectively.
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Establish a comprehensive quality traceability system that records detailed information for each batch of raw materials, every production process, and every testing link, including operator, equipment number, testing time, and testing results.
Service Hotline
Product Hotline
Mobile Phone: +86-13603506135
Contact Person: An Jihong
Email:ah@ahflange.com
Address: Jiangcun Industrial Park, Jiangcun Township, Dingxiang County, Xinzhou City