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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options thumbnail-3

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options thumbnail-4

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options thumbnail-5

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options photo-1

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options photo-2

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options photo-3

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options photo-4

JIS F7481 Large Diameter Butterfly Valve, 5K/10K, Wafer/Lug Type, NBR/EPDM Seat Options photo-5

Product Spotlights

JIS F7481 standard compliant large diameter butterfly valve offering 5K/10K pressure ratings. Versatile wafer/lug body types and NBR/EPDM seat options provide flexibility for diverse fluids and installations. Robust design ensures reliable performance for high-flow applications. Manufactured under ISO9001 quality system, exported globally from major Chinese ports.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

JIS F7481

Application:

Other, Industrial Fluid Control Systems

Pressure Rating:

5K/10K

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Standard JIS F7481

Application Other, Industrial Fluid Control Systems

Pressure Rating 5K/10K

Body Type Wafer/Lug Type

Seat Material Options NBR/EPDM

Connection Type Flanged

Operation Type Manual/Gearbox/Actuator Optional

Material Carbon Steel/Stainless Steel Optional

Size Range Customizable, Large Diameter Available

As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance industrial valves. Our JIS F7481 Large Diameter Butterfly Valve is engineered to meet the demanding requirements of fluid control systems across various industries. Designed with robust construction and versatile configurations, this valve offers reliable sealing, easy operation, and long service life, making it a cost-effective solution for your pipeline projects.

This valve series is particularly suitable for applications involving large flow rates, where dependable performance and minimal maintenance are crucial. Whether you need a wafer or lug type design, with NBR or EPDM seat options, our product provides the flexibility to match your specific operational conditions and media characteristics.

Key Features and Technical Specifications:

Compliance with JIS F7481 Standard: Manufactured according to the Japanese Industrial Standard for butterfly valves, ensuring dimensional accuracy, material quality, and performance consistency.
Pressure Rating Options: Available in 5K and 10K pressure classes to suit different system pressure requirements.
Versatile Body Types: Offered in both wafer and lug type designs. Wafer type is ideal for space-saving installations between two flanges, while lug type provides threaded holes for bolting directly to pipeline flanges, offering more secure mounting.
Dual Seat Material Options:
- NBR (Nitrile Rubber): Provides excellent resistance to oils, fuels, and many hydrocarbons. Suitable for general water and oil services.
- EPDM (Ethylene Propylene Diene Monomer): Offers superior resistance to hot water, steam, acids, alkalis, and polar solvents. Ideal for applications involving high temperatures or aggressive chemicals.
Large Diameter Design: Engineered for pipelines requiring high flow capacity, reducing pressure drop and enabling efficient fluid transfer.
Robust Disc and Stem Assembly: The disc is typically made from durable materials like carbon steel or stainless steel (available upon request), and is securely connected to the stem to ensure smooth 90-degree rotation for precise flow control.
Multiple Operation Methods: Can be equipped with a manual hand lever, a gearbox for easier operation of large valves, or an actuator for automated control systems (optional).

Detailed Parameter Table:

Parameter	Description / Value
Standard	JIS F7481
Pressure Rating	5K (Approx. 0.5 MPa) / 10K (Approx. 1.0 MPa)
Body Type	Wafer Type, Lug Type
Seat Material	NBR (Standard), EPDM (Optional)
Connection	Flanged, conforming to JIS standard flange dimensions
Operation	Manual Lever, Gearbox, Actuator (Customizable)
Body Material	Carbon Steel (Standard), Stainless Steel, Ductile Iron (Available upon request)
Disc Material	Typically matches body material, coated options available
Size Range	Large diameters available, specific sizes customizable
Temperature Range	Depends on seat material: NBR up to ~80°C, EPDM up to ~150°C

Benefits for Our Clients:

Reliable Performance: Adherence to JIS F7481 guarantees a product that meets recognized industry standards for quality and function.
Application Flexibility: The choice between wafer/lug type and NBR/EPDM seats allows you to select the optimal configuration for your specific fluid, temperature, pressure, and installation needs.
Cost-Efficiency: Butterfly valves offer a simpler, more compact, and often more economical alternative to other valve types like gate valves, especially for large diameters.
Easy Installation and Maintenance: The design facilitates straightforward installation between flanges, and the seat replacement process is relatively simple, reducing downtime.
Global Compatibility: JIS standards are widely accepted, and our valves are exported to markets worldwide, including North America, Europe, Asia, and Africa, demonstrating their broad applicability.

Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, has built a solid reputation through its commitment to quality and customer satisfaction. Our ISO9001 certification underpins our manufacturing processes, ensuring consistent product quality. With an annual export value ranging between US$1 Million and US$1.5 Million, we serve a diverse global clientele across continents, from North America and Europe to Southeast Asia and Africa. This extensive market reach is supported by efficient logistics from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing. Our JIS F7481 Butterfly Valve embodies this expertise, offering a dependable, versatile, and standardized solution for your large-diameter flow control challenges. Contact us today to discuss how this valve can enhance your system's performance and reliability.

Frequently Asked Questions (FAQ):

Q: What does "5K" and "10K" pressure rating mean in JIS standards?
A: In JIS standards for valves, "K" denotes a pressure class. 5K corresponds approximately to a pressure rating of 0.5 MPa (about 73 psi), and 10K corresponds to approximately 1.0 MPa (about 145 psi). It indicates the maximum allowable pressure the valve body and seat can withstand.
Q: What is the main difference between Wafer Type and Lug Type butterfly valves?
A: A Wafer Type valve is designed to be installed between two pipeline flanges using bolts that pass through both flanges and the valve body. It relies on the flange compression for sealing and is more compact. A Lug Type valve has threaded holes (lugs) on its body, allowing it to be bolted directly to each flange independently, providing a more secure mounting, especially at the end of a pipeline.
Q: How do I choose between NBR and EPDM seat material?
A: The choice depends on the fluid media and operating temperature. NBR is suitable for oils, fuels, and general water services at moderate temperatures. EPDM is recommended for applications involving hot water, steam, acids, alkalis, or certain solvents, as it offers better resistance to these conditions and higher temperatures.
Q: Can this valve be used for throttling (flow control) or only for on/off service?
A> Butterfly valves can be used for both on/off isolation and throttling control. However, for precise throttling, especially with large diameters, using a gearbox or actuator for smoother operation is advisable. The disc design allows for progressive flow adjustment.
Q: Are actuators available for automated operation?
A: Yes. Actuators (electric, pneumatic, or hydraulic) can be supplied as an optional accessory. They allow for remote, automated, or programmed control of the valve, integrating it into control systems.
Q: What are the typical large diameter sizes available?
A: While specific sizes can be customized based on your requirements, we commonly produce valves with diameters significantly larger than standard sizes, suitable for main pipelines, water distribution, and industrial process lines. Please contact us with your required size for confirmation.
Q: Does the valve come with any standard certifications?
A> Our manufacturing facility is ISO9001 certified, ensuring quality control throughout production. The valve itself is produced to meet the JIS F7481 standard. Other specific product certifications can be discussed based on project requirements.
Q: What is the delivery time for a custom order of large diameter valves?
A: Delivery time depends on the order specifications, quantity, and current production schedule. Generally, for standard configurations of large diameters, lead times are competitive. We will provide a clear timeline upon receiving your detailed inquiry.