Which standards do Cangrun pipe fittings and flanges comply with?

Butt-weld fittings are produced to JIS B2311/B2312/B2313, GB/T 12459, GB/T 13401, GB/T 10752, SH/T 3408, SY/T 0609 and HG/T 21635 in ASTM/ASME A234 and A403 materials. Flanges are supplied in American series Class 150 to Class 2500 and European series PN2.5 to PN400.

What is your manufacturing size range?

Seamless fittings from 1/2 to 24 inch (DN15–DN600), welded fittings from 4 to 78 inch (DN150–DN1900) with wall thickness up to 150 mm, and weld neck flanges up to 160 inch (DN4000).

Which materials are available?

Carbon steel ASTM/ASME A234 WPB, WPC and ST37; alloy steel ST52, 12CrMo, 15CrMo, WP1–WP12, WP11–WP22, WP5, WP91 and WP911; stainless steel ASTM/ASME A403 WP304, 304L, 304H, 304LN, 304N, 316, 316L and 316Ti.

Which flange facing types can you supply?

Flat Face (FF), Raised Face (RF), Groove (G), Male/Female (MFM) and Ring Type Joint (RJ), depending on flange type and pressure class.

Which industries use your products?

Electric power, petrochemical, chemical, pharmaceutical, boiler, heating and shipbuilding projects, supplied to contractors and distributors worldwide.

How can I receive a full product catalog?

Use the Request a Catalog page or contact our export team at Bryan@crpipes.com with your product, size, schedule, material and standard requirements.

China Industrial Steel Butt Welding Flange Factories, Pricelist

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China Industrial Steel Butt Welding Flange Factories, Pricelist

Butt welding flange refers to a flange with a neck and a round pipe transition and butt welding connection with the pipe. We produce ASME B16.5 butt welding flanges, ASME B16.47 butt welding flanges, DIN 2631 butt welding flanges Welding flanges, DIN 2637 butt welding flanges, DIN 2632 butt welding flanges, DIN 2638 butt welding flanges, DIN 2633 butt welding flanges, etc. Welding flanges are suitable for pipelines with large fluctuations in pressure or temperature or high temperature, High pressure and low temperature pipelines are also used for pipelines that transport expensive, flammable and explosive media. Butt welding flanges are not easily deformed, have good sealing, and are widely used. Application : chemitry industry , oil and gas industry etc.

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Product Description

HEBEI CANGRUN PIPELINE EQUIPMENT CO.,LTD

We are the main butt welding flange manufacturer in China, and have passed ISO9001:2000 certification. Our product range is complete, including various industrial flanges, industrial pipes, and industrial pipe fittings, which can fully meet your choice.

Butt Welding Flange Size Range: 3/8" ～ 160" (DN10 ～ DN4000)

Pressure Ratings & Standards

American Series

CLASS 150 CLASS 300 CLASS 400 CLASS 600 CLASS 900 CLASS 1500 CLASS 2500

European Series

PN 2.5 PN 6 PN 10 PN 16 PN 25 PN 40 PN 63 PN 100 PN 160 PN 250 PN 320 PN 400

American Series Sealing Surfaces

Flat surface (FF)
Raised surface (RF)
Grooved surface (G)
Concave and convex surface (MFM)
Ring connection surface (RJ)

International Compliance Standards

All products fully comply with global manufacturing standards:

ASME B16.9 ISO API EN DIN BS JIS GB

Forged & Industrial Flange Applications

Forged flanges are used as a linking part to create a pipework network for cylinders, valves, pumps, and other devices. Forged flanges incorporate two different sections of the machinery. To render the entity stronger, they should be an attachment of a frame.

Industrial flanges have several uses including connecting sheets, pumps, pipes and structures which explicitly need an intermediate connection point. Flanges made of stainless steel come in several different forms. Every form satisfies its own needs.

Large flanges of the welded neck are fastened to a base of the tubing. How this flange is welded guarantees that the diameter is the same as the pipe length it was attached to. Such flanges are also commonly used for usage in high-pressure applications.

Frequently Asked Questions (FAQ)

Q1: What pressure ratings do you supply for American and European series flanges?

We manufacture American Series flanges ranging from CLASS 150 to CLASS 2500, and European Series flanges from PN 2.5 up to PN 400.

Q2: What sealing surface types are available for American series flanges?

Our American series flanges are available in Flat Surface (FF), Raised Surface (RF), Grooved Surface (G), Concave and Convex Surface (MFM), and Ring Connection Surface (RJ).

Q3: What size range is available for your butt welding flanges?

Our butt welding flanges cover a complete size range from 3/8" to 160" (DN10 to DN4000).

Q4: Which international standards do your products comply with?

Our industrial flanges, pipes, and pipe fittings comply with ASME B16.9, ISO, API, EN, DIN, BS, JIS, and GB standards.

Q5: What are the main applications of forged welded neck flanges?

Forged weld neck flanges are engineered to match the pipe diameter, making them ideal for high-pressure application systems connecting cylinders, valves, pumps, and structural pipe networks.

Q6: Is HEBEI CANGRUN PIPELINE EQUIPMENT CO.,LTD quality certified?

Yes, we are a leading butt welding flange manufacturer in China and have successfully passed ISO9001:2000 quality management system certification.