Home page

High-pressure RJ butt-welded flange

The company is equipped with over 80 sets of forging and processing equipment, including a 4,000‑ton forging hydraulic press, a 4,000‑mm ring‑rolling mill, and heat‑treatment facilities. It also boasts 18 units of inspection and testing equipment, such as full‑quantitative and portable spectrometers, room‑temperature and high‑temperature tensile testers, ultra‑low‑temperature impact testers, and digital ultrasonic flaw detectors. The facility has an annual production capacity of 30,000 tonnes of forgings made from carbon steels, alloy steels, stainless steels, and nickel‑based alloys, with the largest forgings featuring a maximum billet outer diameter of 4,000 mm.

Category:

Standard flange

Qualification Certificate

Equipment Display

Partner

Product Inquiry Phone:

0519-86211051

Get a quote

Product Description

High-pressure RJ butt-weld flanges are a common method for connecting pipelines, characterized by their simple structure and excellent sealing performance.

First, the length of high-pressure RJ flanged weld‑on fittings typically conforms to standard dimensions, such as DN50, DN100, and so on, to accommodate various pipe diameters. Their length is carefully engineered to ensure a secure and leak‑tight connection during the welding process.

Secondly, the weld length of high-pressure RJ‑type welded flanges is typically 1.5 times the standard requirement, ensuring both weld strength and tightness. During welding, the joint must undergo preparatory procedures—such as cleaning and chamfering—to guarantee weld quality. Subsequently, the flange is joined to the pipeline using a proper welding process, followed by inspection to confirm that the weld meets the required standards.

Finally, the connection length of high-pressure RJ‑type welded flanges must also be adjusted according to actual conditions. In practical applications, appropriate adjustments can be made based on the pipeline’s operating pressure, service medium, and other requirements, ensuring the safety and reliability of the connection.

In summary, the length of high-pressure RJ flanged welds is typically a standard dimension, with the weld length set at 1.5 times the standard requirement and adjusted as needed to suit specific conditions. This connection method features a simple structure and excellent sealing performance, making it widely used in various pipeline applications.

关键词： High-pressure RJ butt-welded flange

Why Choose Us

The company is equipped with over 80 sets of forging and processing equipment, including a 4,000‑ton forging hydraulic press, a 4,000‑mm ring‑rolling mill, and heat‑treatment facilities. It also boasts 18 units of inspection and testing equipment, such as fully quantitative and portable spectrometers, room‑temperature and high‑temperature tensile testers, ultra‑low‑temperature impact testing machines, and digital ultrasonic flaw detectors. The facility has an annual production capacity of 30,000 tons of forgings made from carbon steels, alloy steels, stainless steels, and nickel‑based alloys, with the largest forgings featuring a maximum billet outer diameter of 4,000 mm.

Testing equipment

Processing equipment

Flange cover

Large-diameter flange

Flange cover

Large-diameter flange

Learn more about the product