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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 5K Marine Butterfly Valve DN250 DNV BV Approved With Warranty
JIS F7481 5K Marine Butterfly Valve DN250 DNV BV Approved With Warranty
Product Spotlights
DNV BV & JIS F7481 certified marine butterfly valve for DN250 lines. Features a 5K pressure rating, robust corrosion-resistant material options (cast iron/bronze/SS), and ensures bubble-tight shut-off. Available with lever, gear, or actuator operation. Backed by manufacturer warranty and ISO9001 quality systems, it offers reliable performance for seawater, ballast, and firefighting systems on classified vessels.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
JIS F7481
Application:
Other, Marine and offshore piping systems
Size:
DN250 (10“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
JIS F7481
Application
Other, Marine and offshore piping systems
Size
DN250 (10“)
Pressure Rating
5K (PN10)
Approval
DNV BV Approved
Warranty
Available with warranty
Material
Cast iron, bronze, stainless steel
Connection Type
Flanged
Operation
Lever, gear, or actuator
Seat Material
EPDM, NBR, Viton
As a leading manufacturer with a strong presence in the global marine industry, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our JIS F7481 5K Marine Butterfly Valve DN250, certified by DNV BV. Engineered for demanding marine and offshore applications, this valve combines robust construction, reliable performance, and full compliance with international maritime standards. We understand the critical need for durability and safety in shipboard piping systems, which is why our valve is designed to offer superior sealing, easy operation, and long service life even in harsh saline environments. With our commitment to quality backed by ISO9001 certification and a comprehensive warranty, we provide a trustworthy solution for shipbuilders, repair yards, and offshore operators worldwide.
Core Features & Technical Advantages:
- Stringent Standard Compliance: Manufactured strictly in accordance with JIS F7481, the Japanese Industrial Standard for marine valves, ensuring compatibility and performance recognized in the global maritime sector.
- Renowned Classification Society Approval: Holds approval from DNV BV (Det Norske Veritas & Bureau Veritas), a critical credential for valves used on classified vessels and offshore installations, providing assurance of quality and safety.
- Robust Pressure Rating: Rated for 5K (approximately PN10) pressure class, making it suitable for a wide range of shipboard services including cooling water, ballast, general service, and firefighting lines.
- Durable Material Selection: Key components are crafted from premium materials. The body is typically made from cast iron with epoxy coating or bronze/stainless steel for superior corrosion resistance. The disc is often stainless steel, and seat options include EPDM, NBR, or Viton to suit different fluid media and temperatures.
- Superior Sealing Performance: Features a precision-engineered seat that ensures bubble-tight shut-off, minimizing leakage and enhancing system efficiency and environmental safety.
- Versatile Operation: Available with lever handle, gearbox, or pneumatic/electric actuator options, allowing for manual or automated control to fit specific system requirements and bridge control systems.
- Easy Installation & Maintenance: The flanged connection design (JIS 10K flange standard) facilitates straightforward installation and removal. The compact and lightweight butterfly design compared to gate valves also simplifies handling and reduces structural load.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | JIS F7481 |
| Nominal Diameter | DN250 (10 inches) |
| Pressure Rating | 5K (PN10) |
| Approval | DNV BV Approved |
| Connection Type | Flanged (JIS 10K flange facing) |
| Body Material | Cast Iron (Epoxy Coated), Bronze, CF8/CF8M Stainless Steel |
| Disc Material | Stainless Steel (e.g., 316), Bronze |
| Seat Material | EPDM, NBR, Viton (FKM) - Selectable |
| Operation Type | Lever, Gear Operator, Pneumatic/ Electric Actuator (Optional) |
| Temperature Range | Depends on seat material (e.g., EPDM: -20°C to +120°C) |
| Flow Characteristic | Approximately Equal Percentage |
Benefits for Your Project:
- Regulatory Confidence: The DNV BV approval and JIS F7481 compliance simplify the classification process for new builds and retrofits, saving time and avoiding costly non-compliance issues.
- Enhanced System Reliability: The robust design and quality materials reduce failure rates, ensuring continuous operation of critical marine systems and minimizing downtime.
- Cost-Effective Solution: Offers an optimal balance of performance, durability, and value. The low maintenance requirements and long lifespan contribute to a lower total cost of ownership.
- Global Supply Chain Support: With annual exports valued between US$1-1.5 million and shipments from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery to your location, whether in North America, Europe, Asia, or other key markets we serve.
Trust in a manufacturer with proven expertise. Established in 2016, Shanghai Zhibang Valve has rapidly grown by focusing on quality and customer satisfaction, holding ISO9001 certification to validate our management systems. Our valves are trusted by partners across diverse regions including Eastern Europe, Southeast Asia, Africa, Oceania, and the Americas. When you choose our JIS F7481 DN250 Marine Butterfly Valve, you are not just purchasing a component; you are securing a reliable, certified, and warranted solution backed by a manufacturer dedicated to the marine industry's highest standards. Contact us today to discuss your specific requirements or to request a quotation.
Frequently Asked Questions (FAQ)
-
What does "5K" pressure rating mean in practical terms?
The "5K" designation refers to a pressure rating of 5 kgf/cm², which is approximately equivalent to PN10 (10 bar) or 142 PSI. This indicates the valve's suitable working pressure for marine applications. -
Is this valve suitable for seawater applications?
Yes, when ordered with appropriate materials such as bronze or stainless steel body/disc and EPDM or Viton seats, this valve is well-suited for handling seawater, ballast water, and other corrosive fluids common in marine environments. -
Can I get this valve with an actuator for remote operation?
Certainly. While typically supplied with a lever or gear operator, pneumatic (air) or electric actuators can be fitted as an optional feature to enable integration into automated control systems. -
What is the lead time for an order of this DN250 valve?
Lead time depends on the specific configuration and order quantity. As an established manufacturer with efficient production, we generally offer competitive lead times. Please inquire with your requirements for an accurate schedule. -
Does the DNV BV approval cover all material variants?
The approval is typically granted for specific material grades and designs. We provide valves that maintain the approval status. It is important to specify your material requirements so we can confirm the approved configuration. -
What type of flange standard does this valve use?
This JIS F7481 valve is designed with flanges conforming to the JIS 10K flange standard, which is common in marine piping, especially in Asian-built vessels. Compatibility with other standards should be verified. -
What is included in the warranty?
Our warranty covers defects in material and workmanship under normal use for a specified period. The exact terms will be provided with the commercial documentation. The warranty is a testament to our confidence in the product's quality. -
Can you provide test certificates for the valves?
Yes, we can provide standard factory test reports. For valves requiring specific classification society witnessed tests (e.g., pressure tests), this can be arranged upon request, potentially involving additional steps and costs.
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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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