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DN50-DN300 Marine Butterfly Valve Compliant With JIS F7481 Standard
Product Spotlights
JIS F7481 compliant marine butterfly valve with zero-leakage bidirectional sealing, available DN50-DN300. ISO9001 certified manufacturer. Options: EPDM/NBR/PTFE seat, wafer/lug connection, manual/actuated. Ideal for seawater, ballast, and cooling systems. Customizable with fast global shipping.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
JIS F7481
Working Temperature:
Other, -20°C to +120°C (depending on seat material)
Application:
Other, Marine piping systems
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
JIS F7481
Working Temperature
Other, -20°C to +120°C (depending on seat material)
Application
Other, Marine piping systems
Material
Cast Iron / Ductile Iron / Stainless Steel (optional)
Size Range
DN50 - DN300 (2“ - 12“)
Connection Type
Wafer Type / Lug Type (customizable)
Pressure Rating
JIS 10K / 16K (available upon request)
Seat Material
EPDM / NBR / PTFE (optional)
Certification
ISO9001:2015
Operation
Lever / Gearbox / Actuator (optional)
Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our premium DN50-DN300 Marine Butterfly Valve, fully compliant with the JIS F7481 standard. As an ISO9001-certified manufacturer with over 8 years of industry experience, we deliver reliable, durable, and cost-effective valves tailored for demanding marine environments. Our butterfly valves are designed to ensure leak-proof performance, easy installation, and long service life, making them the ideal choice for shipbuilders, offshore platforms, and maritime repair facilities.
Key Features & Advantages:
- Full Compliance: Strictly manufactured according to JIS F7481 standard, ensuring dimensional interchangeability and performance reliability.
- Wide Size Range: Available from DN50 to DN300 (2" to 12"), covering most common marine piping needs.
- Robust Materials: Body in cast iron, ductile iron, or stainless steel (optional); disc in stainless steel or ductile iron with nickel plating for corrosion resistance.
- Versatile Seat Options: EPDM suitable for seawater and freshwater; NBR for oil-resistant applications; PTFE for high-temperature or aggressive media.
- Low Torque Design: Optimized disc profile reduces operating torque, allowing easier manual or actuated operation.
- Bidirectional Sealing: Achieves zero leakage in both flow directions, meeting stringent marine safety standards.
- Easy Maintenance: Replaceable seat liner without special tools; valve can be serviced inline.
- Customizable Operation: Lever handle, gearbox, electric actuator, or pneumatic actuator available upon request.
| Parameter | Specification |
|---|---|
| Size Range | DN50 – DN300 (2" – 12") |
| Pressure Rating | JIS 10K / 16K (optional) |
| Working Temperature | -20°C ~ +120°C (EPDM), up to +200°C (PTFE) |
| Body Material | GG25 / GGG40 / CF8 / CF8M |
| Disc Material | Ductile Iron + Ni Plating / SS304 / SS316 |
| Stem Material | SS410 / SS420 |
| Seat Material | EPDM / NBR / PTFE |
| Connection Type | Wafer / Lug |
| Face-to-Face Dimension | Per JIS F7481 |
| Leakage Rate | Zero leakage (API 598 / ISO 5208 Rate A) |
Customer Benefits:
- Enhanced System Reliability: Our valves are tested to ensure bubble-tight shutoff, preventing costly leaks and downtime in marine applications.
- Simplified Inventory: Standardized JIS dimensions allow direct replacement of existing valves without piping modifications.
- Cost Efficiency: Competitive pricing with long service life reduces total cost of ownership over the vessel's lifetime.
- Global Support: With annual export value of US$1–1.5 million, we ship to over 15 markets worldwide via Shanghai, Guangzhou, Hong Kong, and Beijing ports.
Backed by Shanghai Zhibang Valve Manufacture Co., Ltd. (established 2016, ISO9001 certified), our marine butterfly valves have been trusted by clients in North America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Each valve undergoes rigorous quality control – from material inspection to hydrostatic and seat leakage tests – ensuring consistent performance in harsh marine environments. We offer responsive technical support, fast delivery, and customization options such as special coatings or extended stems. Choose Zhibang for your next marine project and experience the difference of a dedicated manufacturer. Contact us today for a quote or technical consultation!
Frequently Asked Questions (FAQ):
- Q: What is the difference between a wafer and lug type butterfly valve? A: Wafer type is clamped between flanges and is suitable for end-of-line service; lug type has threaded inserts for single-flange mounting, allowing isolation of downstream piping without a downstream flange.
- Q: Can this valve be used for seawater? A: Yes, with EPDM seat and stainless steel disc, it is an excellent choice for seawater cooling and ballast systems. For higher resistance, we recommend duplex stainless steel disc (available on request).
- Q: What pressure ratings are available? A: Standard offering is JIS 10K (1.0 MPa). JIS 16K (1.6 MPa) is available as an option. Please specify your requirement.
- Q: Do you provide actuators with the valve? A: Yes, we can supply lever handle, gearbox, electric actuator (on/off or modulating), or pneumatic actuator. Please provide your operating conditions for proper sizing.
- Q: What is the minimum order quantity (MOQ)? A: Our MOQ is typically 10 pieces per size, but for sample orders or special projects, please contact us for flexible arrangements.
- Q: Can you provide third-party inspection? A: Absolutely. We welcome inspection by classification societies (e.g., DNV, BV, ABS) or your appointed representatives at our factory in Shanghai.
- Q: What is the typical lead time? A: For standard sizes (DN50-DN200) with common materials, lead time is 15–25 working days. Larger sizes or custom options may require longer. Please inquire for exact delivery.
- Q: Is the valve compliant with other international standards? A: While designed to JIS F7481, we can also manufacture to ISO, AWWA, or EN standards upon request. Please share your specific requirements.
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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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