We use plywood cases or pallets, suitable for sea shipping, air shipping, train, and truck delivery.

What's your payment terms?

30% T/T after contract, and 70% T/T before shipment or L/C

Customized Standard Wn Flanges Non-Standard Long Weld Neck Flange

Name: Customized Standard Wn Flanges Non-Standard Long Weld Neck Flange
Brand: Shanxi Donghuang Wind Power Flange Manufacturing Co., Ltd.
SKU: 2297581155

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

US$100.00-5,000.00

1 Piece

Sample price:US$60.00/piece.Request sample

Product profile

Customization

Available

Standard

ANSI, DIN, GB, JIS, GOST, BSW

Type

Welding Flange

Model NO.

WN Flange

Material

Carbon Steel

Structure

Flanges

Connection

Welding

Sealing Surface

RF, FF, Rtj

Manufacturing Way

Forging

Certificates

Ht, Mtc, En3.1, Co, etc..

12~60

Inch

Lead Time

10-25days

Color

Metal Color, Black or Golden or as Requested

Transport Package

Plywood Case/Brandrith

Specification

12"~60"

Trademark

DHDZ

Origin

China

HS Code

73079100

Production Capacity

12000 Ton / Year

Key features

High Mechanical Strength: Integral forged structure ensures uniform material performance and high rigidity.

Stress Reduction Design: Gradual tapered hub reduces stress concentration and improves fatigue resistance.

Leak-Tight Sealing: Supports RF, FF, and RTJ gasket face types for reliable sealing in critical systems.

Smooth Flow Efficiency: Unified inner bore ensures smooth medium flow without turbulence or resistance.

Customization Available: OEM/ODM services available with custom colors, sizes, and material specifications.

Wide Material Compatibility: Manufactured in CS, SS, alloy steel, and duplex steel for diverse applications.

Long Service Life: Designed for long-term safe operation with typical service life exceeding 15 years.

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: ≤7.82h 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 certifications do you have?

We have built the ISO system ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, API 6A, and PED certifications.

Q:Do you accept OEM service?

Yes, we do. We make flanges and forgings per customer's drawings and specifications.

Q:What information should I let you know if I want to get a quotation?

Size, design standard, material, package, quantities, etc. Please share with us the drawings and specifications, if any, so we can offer our best offers.

Q:What's your production time?

Normally, the production will finish within one month. It's decided by the products and technical requirements.

Q:What materials can you make?

We can work with CS, SS, alloy steel, and some duplex steel.