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Marine Dual Plate Check Valve OEM With Mill Test Report, 18-Month Warranty, Standard Compliant Production
Product Spotlights
Compact wafer dual plate design for minimal space and low pressure drop; ISO9001 certified production; each valve comes with complete Mill Test Report; 18-month warranty; OEM customization available (logo, materials, coatings); suitable for marine, seawater, and industrial systems.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Stainless Steel / Ductile Iron (optional)
Application:
Other, Marine
Size Range:
DN50 – DN600 (2“ – 24“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Stainless Steel / Ductile Iron (optional)
Application
Other, Marine
Size Range
DN50 – DN600 (2“ – 24“)
Pressure Rating
PN10 / PN16 / Class 150 (customizable)
Connection Type
Wafer Type (dual plate design)
Temperature Range
-20°C to +120°C (standard)
Standard Compliance
ISO9001:2015, Design per API 594
Warranty
18 months
OEM Service
Yes – Custom logo, packaging, and drawings available
Mill Test Report
Included with every order
Shanghai Zhibang Valve Manufacture Co., Ltd. (established in 2016) proudly presents our Marine Dual Plate Check Valve – a premium fluid control solution designed for demanding marine and industrial environments. With annual export values reaching US$1.5 million and ISO9001 certification, we deliver OEM flexibility, full Mill Test Reports per valve, and an 18-month warranty. This check valve combines compact wafer design with robust dual-plate technology to minimize pressure drop and prevent reverse flow effectively.
Our dual plate check valve is engineered to meet standard compliance requirements and is rigorously tested to ensure leak-tight performance. Below we highlight its technical features, advantages, and how it benefits your system.
- Compact & Lightweight – The wafer-style body fits between flanges, saving space and reducing installation costs.
- Low Pressure Drop – Streamlined dual plates and short stroke reduce head loss, improving system efficiency.
- Durable Materials – Available in stainless steel, ductile iron, or carbon steel (optional), with corrosion-resistant coatings suitable for seawater applications.
- Reliable Sealing – Metal-to-metal or resilient seat options ensure zero leakage in critical marine systems.
- Mill Test Report Included – Each valve is delivered with a complete MTR (material certification, pressure test results, and dimensional check) for full traceability.
- OEM Customization – Logo, packaging, special coatings, and end connections can be tailored to your project specifications.
- 18-Month Warranty – Covers manufacturing defects, giving you peace of mind on long voyages or remote installations.
- Standard Compliant Production – Designed per API 594 and manufactured under ISO9001 quality management system.
| Parameter | Value |
| Size Range | DN50 – DN600 (2" – 24") |
| Pressure Rating | PN10/PN16/Class 150 (other upon request) |
| Body Material | Stainless Steel / Ductile Iron / Carbon Steel |
| Disc Material | SS304 / SS316 / Duplex (custom) |
| Seat Material | NBR / EPDM / Viton / Metal |
| Working Temperature | -20°C to 120°C (higher with special seats) |
| Applicable Media | Fresh water, seawater, oil, gas, steam |
| Test Pressure (Shell) | 1.5x rated pressure |
| Test Pressure (Seat) | 1.1x rated pressure |
Clients benefit from reduced downtime thanks to the valve's quick closing action and simple maintenance. The dual plate design also eliminates water hammer in pipeline systems – a critical advantage for marine vessels and offshore platforms.
With ISO9001:2015 certification and a factory located in Shanghai, China, we export to over 10 global markets including North America, Europe, and Southeast Asia. Our shipping ports are Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Over the past years, we have delivered thousands of check valves to shipbuilders, EPC contractors, and industrial plants. Each valve undergoes strict inspection and is backed by 18-month warranty and Mill Test Report. Contact us today for a customized quotation or technical support – we are ready to serve your project with quality and reliability.
Frequently Asked Questions (FAQ)
-
Q: What is a Mill Test Report and why is it important?
A: A Mill Test Report (MTR) is a certified document that provides material composition, mechanical properties, and test results for the valve components. It guarantees traceability and compliance with project specifications, which is essential for marine and critical safety applications. -
Q: Can the valve be used for seawater cooling systems?
A: Yes. We offer disc and body materials in stainless steel or duplex with appropriate seat elastomers (EPDM or Viton) that resist seawater corrosion. Please specify the application when ordering so we can recommend the best material option. -
Q: Do you provide OEM service with custom branding?
A: Absolutely. We can stamp your logo on the valve body, provide custom packaging, and modify dimensions or coatings as per your drawings. OEM is a standard part of our service. -
Q: What is the warranty coverage period and what does it include?
A: Our standard warranty is 18 months from shipment date. It covers defects in material and workmanship under normal use. We will repair or replace any faulty valve free of charge (excluding shipping costs for replacement). -
Q: Are the valves compliant with international standards?
A: Yes. Our valves are designed per API 594 and manufactured under ISO9001 quality system. They meet common pressure ratings and face-to-face dimensions per EN 558 or ASME B16.5 standards. Please inform us if you require additional certifications like DNV or Lloyds (available upon request). -
Q: What is the typical lead time for an order?
A: For standard sizes and materials, lead time is 15-25 working days. Customized orders may take 30-45 days. We can expedite urgent projects with prior arrangement. -
Q: How does the dual plate check valve differ from a swing check valve?
A: Dual plate check valves are more compact, lighter, and produce lower pressure drop. They have a shorter closing stroke, reducing water hammer. They are ideal for space-constrained installations like marine piping systems. -
Q: Can I get a sample before bulk order?
A: Yes. We offer sample units at cost price. If you order in bulk later, the sample cost can be deducted from the invoice. Please contact our sales team to discuss sampling.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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