What are the common applications for these flanges?

They are widely used in water works, shipbuilding, petrochemical, gas, power industries, and general pipe connections.

What is the typical lead time for production?

Lead time is within 15 workdays during the off-season and about one month during the peak season.

What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Customized Steel Forged Long Weld Neck Flange for Heat Exchange

Name: Customized Steel Forged Long Weld Neck Flange for Heat Exchange
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 2141096125

Shanghai, ChinaShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

US$1.00

1 Piece

Product profile

Customization

Available

Standard

ANSI, DIN, GB, JIS, GOST, BSW

Type

Slotted

Model NO.

LWN-10

Material

Stainless Steel

Manufacturing Way

Forging

Transport Package

Plywood Case/Brandrith

Specification

TUV

Trademark

Origin

China

HS Code

73079100

Production Capacity

15000 Tonnage Per Year

Key features

Extensive Material Selection: Carbon steel, stainless steel, alloy steel, and high-performance alloys like C-276 available.

Global Standard Compliance: Meets ANSI, DIN, JIS, BS, EN, GB, GOST, and other international standards.

Wide Size Range: Sizes from DN15 to DN4000mm (1/2'-100') and pressures up to Class 2500.

OEM/ODM Customization: Custom manufacturing available based on customer drawings and specific requirements.

Certified Quality Assurance: ISO9001:2015 and TUV certified with comprehensive inspection methods.

Diverse Flange Types: Includes WN, SO, BL, SW, PL, THRD, and long weld neck flanges.

Robust Manufacturing Capacity: 20 years experience, 16,000 sqm factory, and advanced CNC machinery.

Versatile Application Scope: Suitable for petrochemical, shipbuilding, power, and water works industries.

Company profile

Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2001-06-01 CertifiedNearest Port: Tianjin Port, Shanghai Port, Qingdao PortAverage Response Time: ≤15h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. is identified as a Chinese manufacturer of steel flanges and forgings, with operations associated with Dingxiang, Shanxi, and a Shanghai head office. The supplier reports ISO9001:2015, PED, and TUV-related certifications, five production lines, 6–10 quality-control staff, and annual steel forging and flange productivity of 5,000 tons. It offers standardized and customized products, including multiple flange types, rings, shafts, blocks, disks, and other forgings. Export activity reportedly began in 2001, with exports representing 41%–50% of sales and customers in more than 15 countries. Evidence supports production, certification, customization, and international customer experience. However, after-sales capability is only described as an intended quality-related process, innovation evidence is limited to one year of total R&D engineer experience, and financial credibility cannot be assessed from the provided information.

Supplier typeThe supplier is described both as a trading company and as a manufacturer. Its formal entity information identifies Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd. as a manufacturer, while its business description states that it manufactures and exports flanges and forgings in China.

CertificationsThe supplier reports an ISO9001:2015 certificate and states that it holds ISO-system, PED, and TUV certifications. Its stated compliance scope includes processes, materials, testing, storage, delivery, and after-sales service, although the specific validity and coverage of each certificate are not provided.

Production capacityThe supplier reports five production lines, 6–10 quality-control staff, 60 employees, and annual production of 5,000 tons of steel forgings and flanges. Its product scope includes large flanges, rings, square forgings, shafts, and related components, supporting a demonstrated manufacturing capability.

Customization capabilityThe supplier explicitly identifies standardization and customization as advantages and lists customized flanges and forgings among its offerings. The product range includes multiple flange configurations and forging forms, directly supporting customization capability.

Client casesThe supplier states that it serves clients in more than 15 countries across the EU, USA, Gulf area, UK, South America, Australia, and Asia, and reports export activity beginning in 2001. The provided trade information also identifies a Ukraine-related buyer record registered in June 2025, although detailed project references or customer performance evidence are not supplied.

Product Q&A

Q:What materials are available for the flanges?

We offer carbon steel (ASTM A105, A350), stainless steel (304, 316, etc.), alloy steel, and high-performance alloys like C-276.

Q:Which international standards do you comply with?

Our flanges comply with ANSI, ASME, DIN, JIS, BS, EN, GB, GOST, and other equivalent standards.

Q:What is the size range of your flanges?

We provide flanges ranging from DN15 to DN4000mm (1/2' to 100') with various pressure classes.

Q:Do you accept custom orders or drawings?

Yes, we offer OEM and ODM services, allowing customization based on customer drawings and specific requirements.

Q:What certifications do you have?

We are ISO9001:2015 and TUV certified, ensuring high quality and reliable inspection methods.

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Customized Steel Forged Long Weld Neck Flange for Heat Exchange