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Help CenterJIS F7481 Large Diameter Butterfly Valve, 10K Pressure Rating, Wafer Type, Forged Steel Construction
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a dedicated manufacturer specializing in high-performance industrial valves. Our JIS F7481 Large Diameter Butterfly Valve embodies our commitment to engineering robust solutions for demanding fluid control applications. Designed with a Forged Steel construction and built to meet the 10K pressure rating under the JIS F7481 standard, this wafer-type valve offers exceptional durability and reliable sealing for large pipeline systems across various industries.
This valve is engineered to handle the challenges of high-volume flow control. Its key advantages include:
- High-Strength Construction: The use of forged steel provides superior mechanical strength and resistance to pressure and corrosion compared to cast alternatives.
- Standard Compliance: Manufactured in accordance with JIS F7481, ensuring consistent quality, dimensional accuracy, and performance predictability for Japanese industrial standards and global projects referencing them.
- Simplified Installation: The wafer-type design allows for easy installation between two pipeline flanges, reducing space requirements and installation time.
- Large Diameter Capability: Specifically designed for large-diameter pipelines, facilitating efficient flow control in water treatment, power generation, chemical processing, and other major industrial sectors.
- Versatile Sealing Options: Depending on the application media and temperature, various seal materials (such as metal or rubber) can be configured to ensure optimal leak-tight performance.
- Multiple Actuation Methods: The valve can be operated manually, with a gearbox, or automated with an actuator (available upon request), offering flexibility for different control system requirements.
The technical specifications and configuration options for this valve are detailed below. Please note that specific dimensions and weights are dependent on the exact nominal diameter ordered.
| Feature | Description / Specification |
|---|---|
| Primary Standard | JIS F7481 |
| Body Material | Forged Steel (e.g., A216 WCB or equivalent) |
| Disc Material | Forged Steel or Stainless Steel (Optional) |
| Pressure Rating | 10K (Approx. 10 kgf/cm²) |
| Connection Type | Wafer Type (Between Flanges) |
| Seal Type & Material | Configurable: Metal Seat (for high temp), Rubber Seat (EPDM, NBR, etc.) |
| Operation Type | Manual Lever, Gear Operator, or Actuator (Electric/Pneumatic) |
| Size Range (Nominal Diameter) | Large Diameter (Specific sizes available upon request) |
| Face-to-Face Dimension | As per JIS F7481 standard for corresponding size |
| Applicable Media | Water, Oil, Gas, Steam, Chemicals (dependent on seal selection) |
| Temperature Range | Varies with seal material: Rubber seats (~ -20°C to +120°C), Metal seats (higher) |
Choosing our JIS F7481 butterfly valve provides tangible benefits for your project:
- Long Service Life: The forged steel body and disc resist deformation and wear under cyclic operation, extending valve lifespan.
- Reliable Sealing Performance: Proper seat selection ensures minimal leakage, enhancing system efficiency and safety.
- Cost-Effective Maintenance: The simple wafer design and accessible internal components facilitate easier inspection and maintenance.
- Global Project Compatibility: Adherence to JIS F7481 makes it suitable for projects requiring Japanese standards or those in regions like Southeast Asia and Eastern Asia where these standards are commonly referenced.
- Flow Efficiency: The large diameter and streamlined disc design minimize flow resistance when fully open, reducing pumping energy costs.
Shanghai Zhibang Valve operates under an ISO9001 certified quality management system, ensuring every valve meets stringent production controls. With an annual export value between US$1 Million and US$1.5 Million, we have successfully supplied our valves to diverse markets including North America, South America, Eastern Europe, Southeast Asia, Africa, and Oceania. Our products are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. This global reach and proven quality system underscore our reliability as a manufacturer. We invite you to consult with us for your specific large-diameter valve requirements. Our engineering team can provide tailored solutions to match your pressure, media, and actuation needs, delivering a valve that integrates seamlessly into your system for long-term, dependable performance.
Frequently Asked Questions (FAQ)
Q1: What does "10K pressure rating" mean in the context of JIS F7481?
A: In the JIS (Japanese Industrial Standards) system, "10K" denotes a pressure rating class. It approximately corresponds to a nominal pressure of 10 kgf/cm² (about 0.98 MPa or 142 psi). This rating defines the valve's design pressure capability for safe operation.
Q2: Can this wafer-type valve be used as an isolation valve in a piping system?
A: Yes, absolutely. Butterfly valves, especially large-diameter ones, are commonly used for isolation and throttling. The wafer design is installed between two flanges and, when closed, the disc seals against the seat to block flow, providing effective isolation.
Q3: Is forged steel better than cast steel for a butterfly valve body?
A: Forged steel generally offers higher strength, better grain structure, and improved resistance to impact and fatigue compared to cast steel. For critical applications or larger sizes where structural integrity under pressure is paramount, forged construction is often preferred.
Q4: What are the typical large diameter sizes available for this valve?
A: The exact size range is customizable based on demand. Common large diameters in industrial applications can start from 300mm (12") and go up to 1200mm (48") or even larger. Please contact us with your required nominal diameter (DN) for specific availability.
Q5: What seal material should I choose for hot water or steam service?
A: For media with higher temperatures (e.g., steam), a metal seat (often stainless steel) is recommended. Rubber seats like EPDM have lower temperature limits. Our team can advise on the best seal material based on your specific media temperature and composition.
Q6: Can this valve be supplied with an electric actuator for remote control?
A: Yes. While the base valve design supports manual or gear operation, we can configure it with an electric (or pneumatic) actuator upon request. This allows for integration into automated control systems, enabling remote operation and position feedback.
Q7: Does compliance with JIS F7481 limit its use in regions following other standards like ANSI or DIN?
A: Not necessarily. While the dimensional specifications follow JIS, the fundamental design and performance are robust. Many global projects accept valves meeting reputable international standards. For flange compatibility, ensure your pipeline flanges match the JIS flange dimensions or discuss adapter requirements with us.
Q8: What is the typical lead time for ordering a custom large-diameter valve?
A: Lead time depends on the specific size, material, and configuration (e.g., actuator). As a manufacturer, we can provide more accurate timelines upon receiving your detailed requirements. Our production under ISO9001 aims for efficient and reliable delivery schedules.
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