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Home > Industrial Equipment & Components > Valve > Check Valve > Zhibang Valve Marine Flanged Dual Plate Check Valve for Ship Oil Pipelines DNV BV Approved Cast Steel
Zhibang Valve Marine Flanged Dual Plate Check Valve for Ship Oil Pipelines DNV BV Approved Cast Steel
Product Spotlights
DNV and BV approved marine dual plate check valve, cast steel construction with flanged connection, designed for ship oil pipelines. Features low pressure drop, corrosion resistance, spring-assisted rapid closure, and compact dimensions for easy installation in confined spaces.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Cast Steel
Application:
Other, Marine Oil Pipelines
Type:
Dual Plate Check Valve
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Cast Steel
Application
Other, Marine Oil Pipelines
Type
Dual Plate Check Valve
Connection
Flanged
Certification
DNV, BV, ISO9001
Size
2“ - 24“ (DN50 - DN600)
Pressure Rating
Class 150 - 300
Brand
Zhibang Valve
Welcome to Shanghai Zhibang Valve Manufacture Co., Ltd. As an experienced manufacturer established in 2016, we specialize in producing high-quality valves for marine and industrial applications. Our Marine Flanged Dual Plate Check Valve is engineered specifically for ship oil pipelines, offering reliable backflow prevention and long service life. This valve is DNV and BV approved, ensuring compliance with rigorous marine classification standards, and constructed from premium cast steel for superior strength and corrosion resistance.
Designed to withstand harsh marine environments, this dual plate check valve minimizes water hammer and pressure drop, making it an ideal choice for oil transfer systems on vessels, offshore platforms, and port facilities. With flanged connections and a compact face-to-face dimension, installation and maintenance are straightforward.
Key Features & Benefits
- Dual Plate Design: Reduces water hammer and pressure loss compared to swing check valves, enhancing system efficiency.
- Cast Steel Body: Offers excellent mechanical strength and resistance to seawater corrosion, ensuring long-term durability.
- DNV & BV Approved: Meets international marine classification requirements for safety and reliability in ship oil pipelines.
- Flanged Connection: Compatible with standard pipe flanges (ANSI, DIN, JIS) for easy installation and replacement.
- Spring-Assisted Closure: Ensures rapid sealing to prevent reverse flow, even in low-pressure conditions.
- Short Face-to-Face Dimension: Saves space in confined piping systems typical on ships.
- Wide Media Compatibility: Suitable for oil, water, gas, and other non-aggressive fluids.
- Low Maintenance: Simple design with few moving parts reduces the need for frequent servicing.
Technical Specifications
| Size Range | 2" - 24" (DN50 - DN600) |
| Pressure Rating | Class 150 / Class 300 (PN10 - PN40 optional) |
| Operating Temperature | -20°C to +150°C (customizable for higher temps) |
| Body Material | Cast Steel (WCB, LCB, CF8M available) |
| Disc Material | Stainless Steel (SS316 recommended for oil) |
| Seal Material | NBR, Viton, or PTFE depending on media |
| Connection Standard | ANSI B16.5, DIN 2632, JIS B2220 (upon request) |
| Certification | DNV, BV, ISO9001:2015 |
Why Choose Zhibang Valve?
As a manufacturer with ISO9001 certification and annual export value of US$1 million to US$1.5 million, we have served markets across North America, South America, Europe, Asia, Africa, and Oceania. Our marine check valves are rigorously tested to meet strict quality standards, ensuring reliable performance in critical ship oil pipeline applications. By choosing Zhibang, you benefit from:
- Direct factory pricing and customization options.
- Short lead times and flexible shipping from Shanghai, Guangzhou, Hong Kong, or Beijing.
- Technical support and after-sales service from our experienced team.
- Proven track record with over 7 years of valve manufacturing expertise.
Our commitment to quality and continuous improvement has made us a preferred supplier for marine and industrial clients worldwide. We invite you to contact us for detailed quotations or technical inquiries. Experience the reliability of Zhibang marine check valves in your next project.
Frequently Asked Questions (FAQ)
-
What materials are used in this valve?
The valve body is cast steel (WCB/LCB/CF8M), discs are stainless steel (SS316), and seals are available in NBR, Viton, or PTFE depending on the medium and temperature requirements. -
Is this valve approved by classification societies?
Yes, our marine dual plate check valve carries DNV and BV type approval, and our factory is ISO9001 certified. Other certifications (e.g., ABS, LR) are available upon request. -
What sizes and pressure ratings are available?
Standard sizes range from 2" to 24" (DN50 to DN600) with pressure ratings of Class 150 and Class 300. Custom sizes and higher pressure ratings can be manufactured per customer specification. -
How does the dual plate design prevent water hammer?
The spring-assisted closure and lightweight discs allow rapid closing upon flow reversal, significantly reducing pressure surges and water hammer compared to swing check valves. -
Can this valve be used for fluids other than oil?
Yes, it is suitable for water, gas, steam, and various non-corrosive media. For aggressive chemicals, please consult our engineering team for material upgrades. -
What is the typical lead time?
For standard sizes and materials, lead time is 30-45 days. Rush orders may be accommodated subject to production capacity. Contact us for current availability. -
How is the valve shipped, and what ports do you use?
We ship from Shanghai, Guangzhou, Hong Kong, or Beijing. Packaging includes wooden crates for ocean freight. We can also arrange door-to-door delivery. -
Do you provide a warranty?
Yes, we offer a standard 12-month warranty against manufacturing defects. Extended warranty options are available for specific projects.
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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