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Home > Industrial Equipment & Components > Valve > Check Valve > Marine Dual Plate Check Valve DN250 PN16 Cast Iron Body With 304 Stainless Steel Disc EPDM Seal Standard Compliant
Marine Dual Plate Check Valve DN250 PN16 Cast Iron Body With 304 Stainless Steel Disc EPDM Seal Standard Compliant
Product Spotlights
The Marine Dual Plate Check Valve DN250 PN16 features a robust cast iron body, 304 stainless steel disc, and EPDM seal for reliable backflow prevention in marine systems. Its compact wafer design reduces installation space and water hammer. ISO9001 certified with global export experience, customizable options available upon request.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Application:
Other, Marine
Size:
DN250
Pressure Rating:
PN16
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Marine
Size
DN250
Pressure Rating
PN16
Body Material
Cast Iron
Disc Material
304 Stainless Steel
Seal Material
EPDM
Type
Dual Plate Wafer Check Valve
Connection
Wafer
Certification
ISO9001
As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd has been delivering high-performance valve solutions since 2016. Our Marine Dual Plate Check Valve DN250 PN16 is designed to meet the demanding requirements of marine and offshore applications, where reliability and durability are critical. Featuring a robust cast iron body, 304 stainless steel disc, and EPDM seal, this standard-compliant check valve ensures efficient flow control, minimal pressure drop, and long service life even in harsh environments.
Product Features & Technical Advantages
- Dual Plate Design – The spring-loaded dual plates provide quick closing action, effectively preventing backflow and reducing water hammer in piping systems.
- Cast Iron Body – Made from high-grade cast iron (GG25 / HT250), offering excellent strength, corrosion resistance, and cost efficiency for marine environments.
- 304 Stainless Steel Disc – The disc material ensures superior resistance to seawater, brine, and other corrosive media, extending the valve’s lifespan.
- EPDM Seal – EPDM rubber sealing provides excellent resistance to ozone, weathering, and a wide range of chemicals, ideal for water and wastewater applications.
- Wafer Connection – Compact wafer design allows easy installation between flanges, saving space and reducing overall system weight.
- Standard Compliant – Designed and manufactured in accordance with relevant international standards (e.g., API 594, BS EN 12334, etc.), ensuring interchangeability and reliable performance.
- Low Pressure Drop – Optimized flow path minimizes turbulence and pressure loss, improving system efficiency.
Technical Specifications
| Size | DN250 (10 inches) |
| Pressure Rating | PN16 (16 bar / 232 psi) |
| Body Material | Cast Iron (GG25 / HT250) |
| Disc Material | 304 Stainless Steel |
| Seal Material | EPDM |
| Connection Type | Wafer (between flanges) |
| Face-to-Face Dimension | EN 558 Series 20 / API 594 Short Pattern |
| Flange Drilling | EN 1092-2 PN16 / ASME B16.5 Class 150 (optional) |
| Applicable Media | Fresh water, seawater, wastewater, oil-free fluids |
| Temperature Range | -10°C to +80°C (EPDM seal), higher options available upon request |
Customer Benefits
- Reduced Maintenance Costs – The robust materials (cast iron + 304 SS + EPDM) resist corrosion and wear, minimizing the need for frequent replacement or repair.
- Simple Installation – Wafer design fits easily between standard flanges, saving labor time and installation costs.
- Enhanced System Safety – Fast-closing dual plates prevent reverse flow, protecting pumps and other downstream equipment from damage.
- Global Compatibility – Designed to meet common international standards, making it suitable for projects in North America, Europe, Asia, Africa, and Oceania.
- Customization Options – Available with different disc materials (316L, Duplex), seal materials (NBR, Viton), and connection types (lug or flanged) to suit specific needs.
Trust & Reliability
Since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd has been dedicated to producing high-quality valves for global markets. Our facility is ISO9001 certified, ensuring strict quality control from raw material procurement to final testing. With an annual export value exceeding US$1 million, we have supplied valves to customers across more than 15 regions, including North America, Europe, Southeast Asia, and Africa. Every valve is hydrostatically tested and functionally inspected before shipment. We also provide comprehensive after-sales support, including technical documentation, spare parts, and warranty service. Choose our Marine Dual Plate Check Valve for reliable, cost-effective performance in your marine or industrial system.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum operating pressure for this valve?
A: The PN16 rating corresponds to 16 bar (232 psi) at ambient temperature. For higher pressure requirements, we offer PN25/PN40 versions upon request. -
Q: Can this valve be used in seawater applications?
A: Yes, the 304 SS disc and EPDM seal provide good resistance to seawater. For longer service life in aggressive marine environments, we recommend upgrading to 316L or Duplex disc material. -
Q: Does the valve require regular maintenance?
A: No special maintenance is needed under normal operating conditions. Periodic inspection of the seal and spring tension is recommended every 12 months. -
Q: What is the temperature range for the EPDM seal?
A: Standard EPDM is suitable for -10°C to +80°C. For higher temperatures (up to 120°C), we can supply with FKM (Viton) seal. -
Q: Is this valve suitable for vertical installation?
A: Yes, dual plate check valves can be installed horizontally or vertically. For vertical installations with downward flow, please consult our technical team for spring selection. -
Q: Do you provide certificates like ISO9001?
A: Yes, we are ISO9001 certified and can provide a copy of the certificate upon request. Material certificates for the body, disc, and seals are also available. -
Q: What is the lead time for this product?
A: Standard lead time is 15-25 working days for quantities up to 50 units. Larger orders may require 30-40 days. Please contact us for exact delivery schedule. -
Q: Can you customize the valve dimensions or materials?
A: Absolutely. We offer customization on end connections (lug, flanged), disc and seal materials, and spring tension. Contact our sales team with your specifications.
Contact us today to discuss your project requirements and request a quote. With our experience and global shipping capability from Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery to any port worldwide.
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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