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Marine Butterfly Valve Manufacturer Compliant With DNV, LR, and ABS Standards
Product Spotlights
Marine-grade butterfly valves certified for DNV, LR, and ABS standards. Features corrosion-resistant construction with materials like epoxy-coated cast iron and stainless steel. Offers reliable, bubble-tight sealing with EPDM/NBR/Viton seats and low-torque operation. Available in sizes DN50-DN600 with manual, electric, or pneumatic actuation. Designed for seawater, ballast, firefighting, and fuel systems, ensuring compliance and reliability in critical maritime applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Seawater Cooling
Material:
Cast Iron, Ductile Iron, Stainless Steel, Bronze
Size Range:
DN50 to DN600 (2“ to 24“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Seawater Cooling
Material
Cast Iron, Ductile Iron, Stainless Steel, Bronze
Size Range
DN50 to DN600 (2“ to 24“)
Operation Type
Lever, Gear, Electric Actuator, Pneumatic Actuator
Design Standard
ISO 10631, API 609
Pressure Rating
PN10, PN16, ANSI 150
Seat Material
EPDM, NBR, Viton, PTFE
Connection Type
Wafer, Lug, Double Flange
Face-to-Face
ISO 5752 Series 14, 15, 16
Compliance
DNV, LR, ABS, BV, CCS Standards
As a professional manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve is proud to introduce our high-performance marine butterfly valves. Engineered specifically for the demanding conditions of maritime applications, our valves are designed to provide reliable flow control for seawater, ballast, firefighting, and fuel systems. With an annual export value demonstrating our global reach and adherence to ISO9001 quality management systems, we ensure every valve meets the stringent requirements of classification societies like DNV, LR, and ABS, offering shipbuilders and shipowners a dependable solution for their critical operations.
Our marine butterfly valves are constructed to withstand corrosive seawater environments and ensure long-term, maintenance-free service. Key features include:
- Robust Construction: The valve body is manufactured from high-grade materials such as cast iron with epoxy coating, ductile iron, or stainless steel (316/316L), providing excellent resistance to seawater corrosion and mechanical stress.
- Superior Seal Integrity: The disc is precision-machined and paired with a resilient seat made from EPDM, NBR, or Viton, ensuring a bubble-tight seal and preventing leakage even under high-pressure differentials.
- Low Torque Operation: The streamlined disc design and low-friction seat material result in exceptionally low operating torque, allowing for easier manual operation with levers or gearboxes and reducing the size requirement for actuators.
- Versatile Actuation Options: Available in manual (lever, gear), electric, and pneumatic actuated versions to suit any level of automation required for onboard systems.
- Compact & Lightweight Design: The wafer-style design offers significant space and weight savings compared to gate valves, a critical advantage in ship design where space and weight are at a premium.
- Bi-Directional Flow: Designed for reliable shut-off in both flow directions, providing flexibility in piping system layout.
Detailed technical specifications for our standard range are provided below:
| Parameter | Specification |
|---|---|
| Size Range | DN50 (2") to DN600 (24") |
| Pressure Rating | PN10, PN16, ANSI 150 |
| Body Material | Cast Iron (Epoxy Coated), Ductile Iron, CF8/CF8M (SS304/316), Bronze |
| Disc Material | Stainless Steel (304/316), Ductile Iron (Ni-plated), Bronze |
| Seat Material | EPDM, NBR, Viton, PTFE (available upon request) |
| Stem Material | Stainless Steel (304/316) |
| Temperature Range | -10°C to +120°C (depending on seat material) |
| Face-to-Face | ISO 5752 Series 14, 15, 16 (EN 558 Series) |
| Connection | Wafer, Lug, Double Flange (Drilling: ISO, ANSI, JIS, DIN) |
The advantages of choosing our marine butterfly valves translate directly into benefits for your projects:
- Enhanced System Reliability: Compliance with DNV, LR, and ABS standards guarantees the valve's suitability for marine service, reducing the risk of system failure and costly downtime.
- Reduced Lifecycle Cost: The durable materials and design minimize maintenance needs and extend service intervals, lowering the total cost of ownership.
- Simplified Installation: The compact wafer design allows for easy installation between flanges without the need for additional gaskets in many cases, saving time and labor.
- Global Supply Chain Support: With major shipment ports including Shanghai, Guangzhou, Hong Kong, and Beijing, and a presence in markets across North America, Europe, Asia, and beyond, we offer reliable logistics and timely delivery.
Our commitment to quality is backed by our ISO9001 certification and proven by our consistent export performance, supplying valves to shipyards and marine operators worldwide. Choosing Shanghai Zhibang means partnering with a manufacturer that understands the critical nature of marine equipment. We offer not just a product, but a reliable component that contributes to the safety and efficiency of your vessel. For specifications tailored to your specific project requirements, or to request a quotation, please contact our sales team today.
Frequently Asked Questions (FAQ)
-
Q: What is the main difference between a standard industrial butterfly valve and your marine-grade version?
A: Marine butterfly valves are specifically engineered with materials and coatings to resist saltwater corrosion. They undergo more rigorous testing and must be certified by classification societies (DNV, LR, ABS) to ensure reliability in critical shipboard systems where failure is not an option. -
Q: Can you provide valves with specific flange standards, such as JIS or ANSI?
A: Yes, we can. Our valves can be manufactured with flange drillings to match ISO, ANSI, JIS, DIN, and other international standards. Please specify your required standard when inquiring. -
Q: Are electric or pneumatic actuators available for remote operation?
A: Absolutely. We offer a range of actuation solutions, including electric and pneumatic actuators from reputable brands, which can be pre-assembled and tested at our factory for a complete package. -
Q: What is the typical lead time for an order of DN200 marine butterfly valves?
A: Lead times vary based on order quantity, material specification, and actuation requirements. For standard configurations, we often have stock or can produce within 4-6 weeks. We provide accurate lead times with every quotation. -
Q: Do your valves come with full certification documentation?
A: Yes. Each batch of marine valves supplied against a classification society order includes the necessary material certificates, test reports (pressure test, seat leakage), and certification as required by DNV, LR, ABS, or other specified bodies. -
Q: How do I select the appropriate seat material (EPDM, NBR, Viton) for my application?
A: The selection depends on the fluid media and temperature. EPDM is suitable for seawater and hot water, NBR for oils and fuels, and Viton (FKM) for more aggressive chemicals and higher temperatures. Our technical team can assist you in making the correct choice. -
Q: What is your warranty policy for these valves?
A: We offer a standard warranty against manufacturing defects. The specific warranty period and terms are provided with our commercial offer and are based on the application and operating conditions. -
Q: Can you provide custom coatings or special material grades upon request?
A: Yes, we have the capability to accommodate special requests such as specific epoxy coating thicknesses, exotic alloys, or other customizations. These are evaluated on a project-by-project basis.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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