Seamless Steel Butt Weld Welding Elbow Connector

• Type: Seamless
• Technique: ERW
• Material: Alloy Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Hydraulic/Automobile Pipe, Machinery Industry, Chemical Industry, Mining, Construction & Decoration
• Section Shape: Square
• Model NO.: 45 degree
• Nominal Diameter: DN15~DN3400
• Wall Thickness: 3mm~40mm
• Product Type: Concentric Reducer; Eccentric Reducer
• Manufacturing Process: Push, Press, Forge, Cast, etc.
• Reducer Type: Seamless Reducer; Welded Reducer
• Reducer Type 2: Concentric Reducer; Eccentric Reducer
• Reducer Type 3: Butt Welding Reducer; Forged Reducer
• Reducer Type 4: Forging Reducer; Welding Reducer
• Transport Package: Wood Carton Packing
• Specification: diameter 50-1200mm
• Trademark: DHPI
• Origin: China
• HS Code: 7304900000
• Production Capacity: 50000000 Pieces/Year

Product Description

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Product Description

 

This type of reducer is preferred for applications requiring high-pressure or high-temperature conditions, as it provides strength and reliability to the connection while minimizing the risk of leaks. Seamless steel reducers are commonly used in industries such as oil and gas, petrochemical, and power generation.
The commonly used forming process is reducing, expanding or reducing plus expanding, and stamping can also be used for reducing pipes of certain specifications.
A. Reducing/expanding forming
The reducing forming process of the reducer is to put the tube blank with the same diameter as the big end of the reducer into the forming die. By pressing along the axial direction of the tube blank, the metal moves along the die cavity and shrinks to form. According to the size of reducer, it can be divided into one press forming or multiple press forming.
B. Stamping forming
In addition to using steel pipes as raw materials to produce reducers, the reducers of some specifications can also be produced by using the steel plate stamping process. The shape of the die used for drawing is designed according to the size of the inner surface of the reducer, and the blanking steel plate is punched and stretched with the die.
Product specification include: 3/4 "X1/2" --- 48 "X 40" [DN 20 X 15 --- 1200 X 1000]
Wall thickness dimension: Sch 5s --160
Material: Carbon steel: 10 #, 20 #, A3, Q235A, 20G, 16Mn, ASTM A234, ASTM A105; Stainless steel: ASTMA403, 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 304, 304L, 316, 316L, etc
Application: Oil and gas pipeline project, natural gas pipeline project, chemical plant, power plant, shipyard, pharmacy, dairy, beer, beverage, water conservancy, etc
 

Product Parameters

 

Nominal Diameter		Outside Diameter		End to End
		D1*D2
DN	NPS	Series A	Series B	H
20×15	3/4×1/2	26.9×21.3	25×18	38
20×10	3/4×3/8	26.9×17.3	25×14	38
25×20	1×3/4	33.7×26.9	32×25	51
25×15	1×1/2	33.7×21.3	32×18	51
32×25	1.1/4×1	42.4×33.7	38×32	51
32×20	1.1/4×3/4	42.4×26.9	38×25	51
32×15	1.1/4×1/2	42.4×21.3	38×18	51
40×32	1.1/2×1.1/4	48.3×42.4	45×38	64
40×25	1.1/2×1	48.3×33.7	45×32	64
40×20	1.1/2×3/4	48.3×26.9	45×25	64
40×15	1.1/2×1/2	48.3×21.3	45×18	64
50×40	2×1.1/2	60.3×48.3	57×45	76
50×32	2×1.1/4	60.3×42.4	57×38	76
50×25	2×1	60.3×33.7	57×32	76
50×20	2×3/4	60.3×26.9	57×25	76
65×50	2.1/2×2	73.0×60.3	76×57	89
65×40	2.1/2×1.1/2	73.0×48.3	76×45	89
65×32	2.1/2×1.1/4	73.0×42.4	76×38	89
65×25	2.1/2×1	73.0×33.7	76×32	89
80×65	3×2.1/2	88.9×73.0	89×76	89
80×50	3×2	88.9×60.3	89×57	89
80×40	3×1.1/2	88.9×48.3	89×45	89

Certifications

 

Company Profile

Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is headquartered in Qufu, China, the hometown of Confucius.Is an engineering pipeline manufacturer, pipeline engineering service provider and pipeline engineering general contractor with the main business of four categories of functional and customized pipelines: special pipelines for rainwater and sewage diversion, special pipelines for municipal areas, special pipelines for industrial and mining areas, and special pipelines for national key engineering projects. The company has built up an industrial ecosystem with the participation of design institutes, financial institutions,  port logistics, construction units, upstream and downstream enterprises, etc. The company is committed to becoming a global leading pipeline system comprehensive solution provider by making intelligent pipelines change human life and constant safety of pipeline transportation.

Donghong has more than 200 R&D personnel and more than 100 patents. Relying on national enterprise technology  center, national CNAS laboratory, academician expert workstation, post-doctoral workstation and other national technology R&D platforms, Donghong deepens the research on digitalization, informatization and intelligentization of pipeline engineering and leads the development of engineering pipeline industry. Relying on national technology research and development platforms such as National Enterprise Technology Center, National CNAS Laboratory,  Academician Expert Workstation, Post-doctoral Workstation, etc., Donghong deepens the research on the digitization, informatization and intelligence of pipeline engineering, leads the development of engineering pipeline industry, and serves the national key strategic projects and people's livelihood projects, such as South-to-North Water Diversion, Huangzhilin, Hanzhiwei, Beijing-New Zealand Expressway, One Belt, One Road,  standardized farmland, urban and rural water supply integration, Liren gas, centralized heat supply, etc. The company has been engaged in national key strategic projects and people's livelihood projects.

FAQ

1. Is your product meets the international standard ?
Our products have pass CE, BV, ISO and wars certificate, and all figures indicates higher than standard, you can feel free to let us know which national standard you required, we will check or test it for you.

2. What kind of service do you offer ?
As a manufacture fatory, we provide pipe products, pipe fittings, package and shipping; as a professional consulation company we provide project consulting advise, pipe system solutions and design suggestions; as an engineering focused enterprise , we also provide pipeline contractor service and pipe repair service, also can give free maintance guidance.

3. Do you support OEM/ODM service?
Yes, we offer customization in material, specification, logo, package , connection methods andothers. Meanwhile, our professional team can offer solution suggestion for your specified projects, we have successfull cases of that service.

4. What's your terms of payment?
T/T or L/C at sight.

5. How can you gurantee the goods you offered is qualified?
We warmly welcome all customers arrange the visit to our company and see our goods in sight, we can also provide strict test as per customer required before order. Meanwhile, before the bulk production, we can dispatch samples for customer to do their own tests to qualify the products.