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Home > Industrial Equipment & Components > Valve > Check Valve > Bronze Dual Plate Check Valve, Seawater Circulation, Wafer Type 316SS, PN40, Sizes 2"-12"
Bronze Dual Plate Check Valve, Seawater Circulation, Wafer Type 316SS, PN40, Sizes 2"-12"
Product Spotlights
Bronze body + 316SS disc/seat ensures superior seawater corrosion resistance. Dual plate design minimizes water hammer and pressure drop. Compact wafer type saves space. PN40 rating handles high-pressure systems. Sizes 2"–12" offer flexibility. ISO9001 certified manufacturer with global export experience.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Application:
Other, Seawater circulation
Body Material:
Bronze
Disc/Seat Material:
316 Stainless Steel
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Seawater circulation
Body Material
Bronze
Disc/Seat Material
316 Stainless Steel
Connection Type
Wafer (Wafer Type)
Pressure Rating
PN40
Size Range
2“ - 12“ (DN50 - DN300)
Standard/Certification
ISO9001
Design Type
Dual plate check valve
Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our premium Bronze Dual Plate Check Valve specifically designed for seawater circulation systems. As a specialized manufacturer established in 2016 with ISO9001 certification and an annual export value between US$1 Million and US$1.5 Million, we deliver valves that combine reliability, durability, and high performance. This wafer-type check valve features a robust bronze body paired with 316 stainless steel internals, offering exceptional corrosion resistance in harsh marine environments. With a pressure rating of PN40 and sizes ranging from 2" to 12", it is the ideal solution for demanding seawater applications where space efficiency and long service life matter.
Key Features & Benefits
- Dual Plate Design – Provides quick closing action, reduces water hammer, and minimizes pressure drop compared to traditional swing check valves.
- Wafer Type Construction – Compact and lightweight, suitable for tight installations between flanges, saving both space and weight.
- Seawater-Compatible Materials – Bronze body resists saltwater corrosion, while 316SS disc and seat offer superior protection against pitting and crevice corrosion.
- High Pressure Rating PN40 – Suitable for high-pressure seawater circulation systems up to 40 bar (approx. 580 psi).
- Full Size Range (2"–12") – Available in multiple nominal diameters to fit various pipeline requirements.
- Low Maintenance – Self-cleaning design and few moving parts reduce operational downtime.
- Bi-Directional Sealing Option – Can be configured for flow in either direction upon request (consult factory).
Technical Specifications
| Parameter | Value |
|---|---|
| Body Material | Bronze (C95500 or equivalent) |
| Disc & Seat Material | 316 Stainless Steel (CF8M) |
| Pressure Rating | PN40 (40 bar / 580 psi) |
| Size Range | 2" (DN50) – 12" (DN300) |
| Connection Type | Wafer (between flanges per ASME B16.5 / EN 1092) |
| Operating Temperature | -20°C to +120°C (customizable for higher temperatures) |
| Applicable Medium | Seawater, brackish water, and other corrosive fluids |
| Certification | ISO9001:2015 |
Why Choose Our Bronze Dual Plate Check Valve?
- Proven Corrosion Resistance – Bronze and 316SS are the preferred materials for seawater applications, ensuring long-term reliability even in aggressive environments.
- Space-Saving Design – The wafer profile is significantly shorter than lug or flanged check valves, making installation easier in confined spaces.
- Cost-Effective – Lower material usage and simplified manufacturing result in a competitive price without compromising quality.
- Easy Installation – No special tools required; the valve fits between standard flanges and is secured by bolts.
- Low Pressure Drop – The dual plate design allows a streamlined flow path, reducing energy losses in the system.
- Customizable Options – Available with different seat materials (e.g., EPDM, Viton), spring materials, and special coatings upon request.
Trust & Reliability from Shanghai Zhibang Valve
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a dedicated manufacturer since 2016, with a strong focus on quality control and customer satisfaction. Our ISO9001-certified production facilities ensure every valve meets rigorous standards. With an annual export value of US$1 Million – US$1.5 Million, we serve markets across North America, South America, Europe, Asia, Africa, and Oceania. Our valves are shipped from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery worldwide.
We combine years of engineering expertise with modern manufacturing techniques to deliver check valves that exceed expectations in the most demanding seawater circulation systems. Whether you need a standard size or a custom solution, our team is ready to support your project. Contact us today for a quote or technical consultation – experience the Zhibang difference.
Frequently Asked Questions (FAQ)
-
Q: Can this valve be used for other fluids besides seawater?
A: Yes, the bronze and 316SS materials are suitable for many corrosive and non-corrosive fluids, such as brackish water, oil, and gas. However, for specific chemical compatibility, please consult our technical team. -
Q: What is the maximum operating temperature?
A: The standard design handles temperatures from -20°C to +120°C. For higher temperature applications, we can provide custom spring and seat materials on request. -
Q: Does the valve require a minimum flow to operate?
A: Dual plate check valves are spring-assisted, so they require a very low cracking pressure (typically 0.5–2 psi). They can function at low flow rates, but for optimal performance, consult the specific model data. -
Q: Can I install this valve vertically?
A: Yes, the wafer-type dual plate check valve can be installed in both horizontal and vertical pipelines. For vertical installation with upward flow, the spring ensures proper closing. -
Q: What face-to-face dimensions are available?
A: The valve conforms to API 594 or ASME B16.10 wafer dimensions. We can provide exact dimensional drawings upon request for your specific size. -
Q: Is the valve bi-directional?
A: Standard models are uni-directional (flow direction indicated by arrow). However, bi-directional sealing versions are available as a custom option – please specify your requirement. -
Q: How do I ensure the correct size for my pipeline?
A: The valve is designed to match standard pipe flanges. Please provide your flange rating (e.g., ANSI 300, PN40) and nominal pipe size, and we will confirm compatibility. -
Q: What is the lead time for standard sizes?
A: For common sizes (2", 4", 6", 8", 10", 12"), typical lead time is 15–30 days. Custom sizes or materials may require longer. Contact our sales team for exact delivery dates.
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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