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Help CenterJIS F7480 Marine Butterfly Valve With Wafer Type, PN16 Pressure Rating
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance fluid control solutions for demanding industrial and marine applications. Our JIS F7480 Marine Butterfly Valve with Wafer Type, PN16 Pressure Rating is engineered to meet the rigorous standards of the shipbuilding industry, offering reliable shut-off and flow control for seawater, ballast, fuel oil, and other shipboard systems. With an annual export value ranging from US$1 to US$1.5 million, we have built a strong reputation for quality and dependability across global markets including North America, Southeast Asia, Europe, and Africa.
This valve is designed for durability and ease of maintenance in harsh marine environments. Its compact wafer-type design allows for simple installation between ANSI or JIS standard pipe flanges, saving valuable space and weight onboard vessels—a critical factor in marine engineering.
Key Features and Technical Advantages:
- JIS F7480 Compliance: Manufactured in strict accordance with Japanese Industrial Standard F7480 for marine butterfly valves, ensuring compatibility with international shipbuilding specifications and reliable performance under marine conditions.
- Robust PN16 Pressure Rating: Rated for a nominal pressure of 16 bar, suitable for a wide range of shipboard piping systems including cooling water, bilge, firefighting, and tank services.
- Superior Corrosion Resistance: Available in a variety of material combinations to combat seawater corrosion. Common configurations include ductile iron body with epoxy coating, stainless steel (CF8/CF8M) components, and corrosion-resistant disc and stem materials.
- Bubble-Tight Shut-off: Features a precision-machined disc and a resilient seat (EPDM, NBR, or PTFE) that ensures excellent sealing performance, minimizing leakage and ensuring system integrity.
- Low Torque Operation: The streamlined disc design and low-friction seat reduce operating torque, allowing for smooth manual operation with a lever or gearbox, or enabling the use of smaller, more cost-effective electric or pneumatic actuators.
- Bi-Directional Flow Capability: Can be installed for flow in either direction, providing flexibility in piping layout and installation.
- Long Service Life: Designed for minimal maintenance. The seat is often replaceable without removing the valve body from the pipeline, significantly reducing downtime and maintenance costs.
Technical Specifications Table:
| Parameter | Specification |
| Design Standard | JIS F7480 |
| Valve Type | Wafer, Centric |
| Pressure Rating | PN16 (16 bar) |
| Size Range | DN50 to DN600 (2" to 24") commonly available |
| Body Material | Ductile Iron (GGG40), Cast Steel (WCB), Stainless Steel (CF8/CF8M) |
| Disc Material | Stainless Steel (SS304, SS316), Duplex Stainless Steel, Coated Carbon Steel |
| Stem Material | Stainless Steel (SS416, SS304, SS316) - sealed and protected |
| Seat Material | EPDM (Standard), NBR, Viton, PTFE, Metal Seat (optional) |
| Temperature Range (with EPDM seat) | -20°C to +120°C |
| Operation | Lever Handle, Worm Gear, Electric Actuator, Pneumatic Actuator |
| Face-to-Face | Per JIS F7480 / ISO 5752 Series 14 |
| Flange Standard | JIS B2220 10K, ANSI B16.5 Class 150, etc. (compatible) |
| Test Standards | Shell Test, Seat Leakage Test per JIS F7480 / ISO 5208 |
Benefits for Your Marine Projects:
- Enhanced System Reliability: Reduces the risk of in-service failure, protecting critical shipboard systems and ensuring operational safety.
- Reduced Total Cost of Ownership: The durable construction and low maintenance requirements lead to lower lifecycle costs compared to alternative valve types.
- Simplified Inventory: The wafer design's compatibility with multiple flange standards simplifies spare parts management.
- Global Acceptance: Compliance with JIS standards ensures the valve is accepted by major shipyards and classification societies worldwide.
- Flexible Configuration: We offer various actuator options (manual, electric, pneumatic) and material trims to match your specific system requirements, whether for freshwater, seawater, or oily water services.
Our manufacturing processes are backed by ISO9001 certification, guaranteeing consistent quality control from raw material inspection to final testing. Each JIS F7480 Marine Butterfly Valve undergoes rigorous pressure and leakage tests before shipment. With major ports of shipment including Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure efficient and flexible logistics to support your project timelines anywhere in the world. Trust Shanghai Zhibang Valve to be your reliable partner for marine-grade valve solutions. Contact us today to discuss your requirements, request a detailed quotation, or obtain technical data sheets for your engineering review.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a wafer-type butterfly valve for marine use?
A: The wafer-type design is compact and lightweight, which is crucial for marine applications where space and weight savings are paramount. It installs between two pipe flanges using through-bolts, making installation and removal quicker than lug-type or flanged valves.
Q2: Is this valve suitable for seawater service?
A: Yes, it is specifically designed for marine environments. For seawater, we recommend configurations with a corrosion-resistant body material like epoxy-coated ductile iron or stainless steel (CF8M/SS316), along with a stainless steel disc and an EPDM or PTFE seat for optimal longevity.
Q3: Can this valve be operated remotely?
A: Absolutely. While it comes standard with a manual lever or gear operator, it is designed to be easily fitted with electric or pneumatic actuators for remote and automated control, which is common in modern ship systems.
Q4: What classification society approvals do you have?
A: As a manufacturer, we produce valves to meet recognized industry standards like JIS F7480. Specific approvals from classification societies (like ABS, DNV, LR, etc.) are typically project-specific and can be arranged upon request, involving additional testing and documentation.
Q5: What is the delivery lead time for these valves?
A: Lead time depends on the size, material specification, and quantity. Standard configurations in common sizes often have shorter lead times. We recommend contacting our sales team with your specific needs for an accurate delivery schedule.
Q6: Do you provide a warranty?
A: Yes, we provide a standard warranty against material and manufacturing defects for a specified period under normal service conditions. The exact warranty terms are provided with our commercial quotation.
Q7: Can you provide valves with different pressure ratings, like PN10 or PN25?
A: Yes. While PN16 is a common rating for this JIS standard valve, we can manufacture valves to other pressure classes (PN10, PN25) based on your design requirements. Please specify your needs when inquiring.
Q8: How do I select the right seat material?
A: Seat material selection depends on the fluid media and temperature. EPDM is a versatile, general-purpose elastomer for water. NBR is suitable for oils and fuels. PTFE offers excellent chemical resistance and a wider temperature range. Our technical team can assist you in selecting the optimal seat for your application.
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