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Double Flange Spring Type Water Silent Ductile Iron Seat Vertical Check Valve
US$15.00-321.00
2 Sets
Sample price:US$26.00/set.Request sample
Product profile
Customization
AvailableMedia
WaterTemperature
Ordinary TemperatureModel NO.
dn50-dn600Material
Cast IronConnection Form
FlangePressure
Ordinary PressureFunction
Ddcv Double LobeStandard
DINApplication
Industrial Usage, Water Industrial UsageProduct Name
Ball Check Valves ThreadedBody Materia
Cast Iron, Ductile IronSize
DN50-600Connection
Flange EndsCertificate
ISO9001:2008 CeColor
Customer's RequestTransport Package
Wooden CasesSpecification
dn50-dn600Trademark
qifOrigin
ChinaProduction Capacity
5000pieces/YearKey features
Customizable Color: Color can be customized according to customer's specific request.
OEM and ODM Support: Products can be manufactured according to customer requests with R&D team support.
Wide Size Range: Available sizes from DN50 to DN600 (2''-24'') for various applications.
Multiple Material Options: Body materials include Cast Iron and Ductile Iron for durability.
Extensive Certifications: Holds ISO9001, CE, DNV, LR, CCS, FM, UL, and ABS certifications.
10+ Years Experience: Specializing in flow control for over 10 years with global market knowledge.
12-Month Warranty: 12 months warranty covering all quality problems from shipment date.
Flexible Delivery Terms: Accepts EXW, FOB, CIF, etc., with sea or air shipping options.
Company profile

CertifiedBusiness Type: Trading CompanyExport Year: 2020-03-04 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤18h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, EXW
AI-Powered supplier vetting
SummaryQINGDAO I-FLOW CO., LTD. is a China-based limited trading company established in 2010, with a sales office in Qingdao and a stated factory address in Shandong. Its business focuses on industrial valves, pipe fittings, flanges, and related components. The supplier reports ISO 9001:2015 certification, more than 10 production lines, over 50 quality-control staff, and an annual production output range stated in the source. Export sales account for 90%, and exporting began in 2020. The supplier describes a broad product range exceeding 50 types, available in over 400 sizes and 20 materials, indicating product breadth and potential customization scope. It also cites overseas markets, industrial and commercial users, and associated-company certifications including CE, WRAS, DNV, GL, LR, and ABS. However, the available information contains inconsistencies: the stated employee count is 20 while quality-control staff are stated as 50, and the manufacturing plant area is only 227.96 m² despite the reported...
CertificationsThe supplier explicitly reports an ISO 9001:2015 management-system certificate. It also states that the supplier and associated company have obtained CE, WRAS, DNV, GL, LR, and ABS certificates, although the evidence does not clearly distinguish which certificates are held directly by the target supplier.
Production capacityThe supplier states that it operates more than 10 production lines, employs 50 quality-control staff, and has annual production output within the range reported in the source. It also identifies itself as a factory and provides a manufacturing-plant area of 227.96 m², but the employee and facility figures are inconsistent with one another and should be verified before relying on the stated production scale.
Customization capabilityThe stated availability of more than 50 product types in over 400 sizes and 20 materials indicates substantial configuration breadth for valves and related industrial components. The evidence does not explicitly confirm bespoke design, engineering modification, or made-to-order production, so customization beyond standard variations remains unverified.
Client casesThe supplier cites product use in Shangri-La Hotel, Kerry Center, Milan Expo, a FIAT workshop, IKEA, and MSC vessels, and mentions customers or markets across multiple countries. These are explicit referenced applications, although the evidence does not provide project dates, order scope, contract details, or independently verifiable customer testimonials.
Product Q&A
Q:Can I have a sample order for valve?
A:
Definitely Yes. We welcome sample order to test and check quality. Mixed samples are acceptable.
Q:Can you OEM or ODM?
A:
Yes, we have a great research & development team. The products can be made according to your request.
Q:Can you provide the relevant documentation and certificate?
A:
Yes, we can provide you with the documentation and certificate you need, ISO9001:2000 international quality system certification, (CE) certification of the European Community, Det Norske Veritas (DNV) factory certification, Lloyd's Register (LR) factory certification, China Classification Society (CCS) quality system certification and the FM and UL certification of the US, Bureau Veritas(BV), American Bureau of Shipping(ABS) etc. Of course we can also provide you the test Report; Certificate of
Q:Can you do the design for us?
A:
Yes. Please send us high resolution images, your logo and other materials needed. We will send you finished files for confirmation.
Q:How to proceed an order for valve?
A:
Step 1 let me know your requirements or application. Step 2 We quote according to your requirements or our suggestions. Step 3 Customer confirms the samples and places deposit for formal order. Step 4 We arrange the production.
Send Inquiry
*To:
QINGDAO I-FLOW CO., LTD.
QINGDAO I-FLOW CO., LTD.*Content:
Supplier replies will be sent to your registered email
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