Import Ductile Iron Double Flange Pipe — Buy in wholesale FOB from Supplier in China
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Ductile Iron Double Flange Pipe
The Ductile Iron Double Flange Pipe offered by Qingdao Valtech Manufacturing Co., Ltd. is cast from ductile iron according to ISO 2531, EN 545, BS 4772 and EN 598 specifications. It is supplied in nominal diameters from DN 80 up to DN 1 200 and can be ordered with pressure classes PN 10, PN 16, PN 25 or PN 40. Each unit is produced in the class K9 or K12 grade and the length is cut to the buyer’s requirement. The pipe features a double‑flange end configuration that facilitates direct coupling to matching fittings.
Ductile iron provides a tensile strength of around 350 MPa and a density of 7.2 t/m³, which is typical for this alloy and ensures long‑term durability in buried infrastructure. In the pipe industry a wall thickness ranging from 5 mm for DN 80 to 30 mm for DN 1 200 is standard, delivering the required pressure resilience. The class K9/K12 designation indicates a high‑strength cast with a minimum elongation of 5 % and 6 % respectively, a common quality level for municipal water mains. Surface finish is usually left as‑cast, although additional internal coating can be applied on request to improve corrosion resistance.
These pipes are routinely installed in water transmission networks, sewage systems and industrial process lines, and are purchased by municipal utilities, engineering contractors and EPC firms. Qingdao Valtech can supply the product in bulk containers and accepts standard L/C or T/T payment terms, though exact MOQ and lead time should be confirmed directly. Prospective buyers are advised to request the mill test certificate and verify compliance with the cited standards before placing an order.
| Material | Ductile Iron (Ductile Cast Iron) |
| Standards | ISO 2531, EN 545, BS 4772, EN 598 |
| Nominal Diameter | DN 80 to DN 1 200 |
| Pressure Rating | PN 10, PN 16, PN 25, PN 40 |
| Class | K9 or K12 |
| Wall Thickness | typical 5 mm (DN 80) to 30 mm (DN 1 200) |
| Density | typical 7.2 t/m³ |
| Tensile Strength | typical 350 MPa |
| Length | custom to order |
| End Type | double flange |
Qingdao Valtech Manufacturing Co., Ltd. is located in Jihongtan Town, Chengyang District, Qingdao, Shandong Province, China. It is listed with a harbor‑level verification tier on the platform, indicating that its corporate registration and factory address have been cross‑checked. The supplier’s response metrics show a 0 % response rate and no recorded average response time, suggesting that communication may require proactive outreach.
The company specialises in casting and machining of ductile‑iron pipe components, including double‑flange pipes, bends and fittings. Its product catalogue focuses on infrastructure‑grade items that meet international standards such as ISO 2531 and EN 545. While the listing does not disclose production capacity or additional certifications, Qingdao Valtech invites buyers to request further technical documentation as needed.
Ductile iron double flange pipes conforming to ISO2531, EN545, and EN598 standards are widely used in water transmission, sewage systems, and industrial applications. Available in DN80 to DN1200 with PN10, PN16, or PN25 pressure ratings, these pipes offer superior strength and corrosion resistance for infrastructure projects worldwide. Ideal for import/export trade with competitive pricing for bulk orders from major producing regions.
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Sourcing Ductile Iron Double Flange Pipe from Qingdao Valtech Manufacturing Co., Ltd. - China Import Guide
Before placing an order, importers should obtain the mill test certificate and verify that the pipe dimensions, class designation and pressure rating match the project specifications. It is also advisable to request a sample of the material or a recent production photograph to confirm compliance with ISO 2531 and EN 545. Confirm that the supplier’s manufacturing facilities are located in Qingdao, China, and that the product is produced under the stated class K9 or K12 grade.
Logistics for bulk shipments from Qingdao typically involve full‑container loads or bulk cargo on a roll‑on/roll‑off vessel, with the most common Incoterms being FOB Qingdao Port or CIF destination. Buyers should clarify the exact lead time, which depends on the required length and any custom surface treatment, and negotiate payment terms such as a sight L/C or TT after the bill of lading is issued. Ensure that packing is specified as wooden crates or pallets with adequate bracing to prevent damage during transit.
Quality assurance can be reinforced by arranging a third‑party inspection at the factory before loading, focusing on dimensional checks, wall thickness measurement and verification of the class K9/K12 heat‑treatment report. Request documentation of any corrosion‑resistance coating applied and retain the test reports for future maintenance records. Maintaining clear communication on these checkpoints will help secure a reliable supply of ductile‑iron pipe for infrastructure projects.
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27 listingsTop Verified Suppliers for Ductile Iron Double Flange Pipe
30 suppliersBuy Ductile Iron Double Flang in Bulk — Verified Supplier in China
When sourcing Ductile Iron Double Flange Pipe for your business, securing the right balance of quality and cost is essential. Qingdao Valtech Manufacturing Co., Ltd., a verified supplier based in China, offers this product with key specifications including Ductile Iron (Nodular Cast Iron) Grade 500-7 / 400-15, ISO1083, Carbon 3.0-3.5%, Silicon 2.3-3.0%, Manganese 0.1-0.3%, Magnesium 0.03-0.05%, Residual elements <0.1%, and DN80 - DN1200 (3" - 48"), flanged both ends, length per specification. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $9501,800./Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7303.00, making it a staple in the Iron Pipes sector with strong demand from importing countries worldwide.
Ductile Iron Double Flang Specifications, Trade Terms & Pricing
Importing Ductile Iron Double Flang requires careful attention to shipping logistics, customs compliance, and secure payment terms. Qingdao Valtech Manufacturing Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7303.00 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Qingdao Valtech Manufacturing Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Ductile Iron Double Flang has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Iron Pipes category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Ductile Iron Double Flang — Shipping, Logistics & Customs
Importing Ductile Iron Double Flang requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7303.00 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Ductile Iron Double Flang
What is the wholesale price of Ductile Iron Double Flange Pipe?
The current listed wholesale price for Ductile Iron Double Flange Pipe from Qingdao Valtech Manufacturing Co., Ltd. is $9501,800./Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Qingdao Valtech Manufacturing Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Ductile Iron Double Flang?
The supplier, Qingdao Valtech Manufacturing Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Ductile Iron Double Flang. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Ductile Iron Double Flange Pipe?
For international shipping and customs clearance, Ductile Iron Double Flange Pipe is classified under HS Code 7303.00. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Ductile Iron Double Flang from China?
To import Ductile Iron Double Flang from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Qingdao Valtech Manufacturing Co., Ltd.. Ensure you have the necessary import licenses for Iron Pipes products in your destination country.
Is Qingdao Valtech Manufacturing Co., Ltd. a verified supplier?
Yes, Qingdao Valtech Manufacturing Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Ductile Iron Double Flange Pipe?
The key specifications for Ductile Iron Double Flange Pipe supplied by Qingdao Valtech Manufacturing Co., Ltd. include Ductile Iron (Nodular Cast Iron) Grade 500-7 / 400-15, ISO1083, Carbon 3.0-3.5%, Silicon 2.3-3.0%, Manganese 0.1-0.3%, Magnesium 0.03-0.05%, Residual elements <0.1%, and DN80 - DN1200 (3" - 48"), flanged both ends, length per specification. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Ductile Iron Double Flang?
Qingdao Valtech Manufacturing Co., Ltd. offers Ductile Iron Double Flang with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Ductile Iron Double Flang the most?
Ductile Iron Double Flang is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Qingdao Valtech Manufacturing Co., Ltd. through our platform.
What certifications does this Ductile Iron Double Flang supplier hold?
Qingdao Valtech Manufacturing Co., Ltd. maintains international quality certifications. These ensure that the Ductile Iron Double Flang meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Ductile Iron Double Flange Pipe on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Qingdao Valtech Manufacturing Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Qingdao Valtech Manufacturing Co., Ltd..
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