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Help CenterJIS F7481 10K Wafer Butterfly Valve in Ductile Iron With 316L Stainless Steel Disc
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As a professional manufacturer, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance industrial valves, including the JIS F7481 10K Wafer Butterfly Valve. Engineered with a robust ductile iron body and a corrosion-resistant 316L stainless steel disc, this valve is designed to deliver reliable shut-off and control in demanding applications. Our commitment to quality, backed by ISO9001 certification, ensures that every valve meets stringent performance standards, offering our clients a dependable solution for their fluid handling systems.
The core value of this butterfly valve lies in its optimal combination of durability, corrosion resistance, and cost-effectiveness. It is an ideal choice for industries requiring a valve that can withstand aggressive media while maintaining a long service life. The wafer design facilitates easy installation and space-saving integration into existing pipelines, making it a versatile component for various system upgrades or new installations.
Detailed Features and Technical Specifications:
- Superior Material Construction: The valve body is crafted from high-grade ductile iron (ASTM A536), providing excellent strength and impact resistance. The disc is made from 316L stainless steel, renowned for its superior corrosion resistance, especially against chlorides and other harsh chemicals.
- JIS F7481 Standard Compliance: Manufactured in accordance with Japanese Industrial Standards (JIS) F7481, ensuring dimensional accuracy, performance reliability, and interchangeability with other compliant components in the market.
- 10K Pressure Rating: Rated for a pressure class of 10K (equivalent to PN16/Class 150), suitable for a wide range of industrial pressure requirements in water supply, HVAC, chemical processing, and general industrial services.
- Wafer Style Design: The compact wafer-style body is installed between two pipeline flanges using long bolts, eliminating the need for flange nuts on the valve itself. This design saves weight, space, and installation time.
- Bidirectional Sealing: The valve offers effective bidirectional shut-off capability, preventing leakage from either direction when fully closed, which enhances system safety and efficiency.
- Versatile Seat Options: Standard seats are typically PTFE or EPDM, providing excellent sealing and chemical resistance. Other elastomer materials are available upon request to suit specific media temperatures and chemical compatibilities.
- Multiple Actuation Methods: The valve can be operated manually via a lever handle or a gearbox for higher torque applications. It is also designed for easy integration with pneumatic or electric actuators for automated process control.
Key Technical Parameters:
| Parameter | Specification |
| Design Standard | JIS F7481 |
| Pressure Class | 10K |
| Body Material | Ductile Iron |
| Disc Material | 316L Stainless Steel |
| Seat Material (Standard) | PTFE / EPDM |
| Connection | Wafer Type |
| Temperature Range | Depends on seat material (e.g., -20°C to 150°C for EPDM) |
| Operation | Lever, Gear, or Actuator (Optional) |
Advantages and Customer Benefits:
- Extended Service Life: The combination of ductile iron and 316L SS ensures resistance to corrosion, erosion, and cavitation, leading to reduced maintenance frequency and lower total cost of ownership.
- Reliable Performance: Compliance with JIS F7481 guarantees consistent quality and performance, providing peace of mind for critical applications.
- Cost-Effective Solution: Compared to full lug or flanged butterfly valves, the wafer design offers a more economical option without compromising on sealing performance for many applications.
- Easy Installation & Maintenance: The lightweight and compact design simplifies installation. The simple construction allows for easy inspection and seat replacement if necessary, minimizing downtime.
- Wide Application Suitability: Suitable for handling water, seawater, oils, gases, weak acids, alkalis, and other general-purpose fluids across industries like water treatment, power generation, shipbuilding, and chemical plants.
With over seven years of manufacturing expertise since 2016 and an annual export value ranging between US$1 Million and US$1.5 Million, Shanghai Zhibang Valve has established a strong reputation for delivering reliable valve solutions. Our products reach diverse markets across North and South America, Europe, Asia, Africa, and Oceania, demonstrating global acceptance and trust. The ISO9001 certification underpins our systematic approach to quality control at every production stage. Sourced from our facilities in Shanghai and shipped efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, this JIS F7481 10K Wafer Butterfly Valve represents a blend of proven materials, standardized engineering, and manufacturing diligence. We invite you to experience the reliability and value this valve brings to your operations. Contact us today for detailed quotations, technical data sheets, or to discuss your specific application requirements.
Frequently Asked Questions (FAQ):
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Q: What does the "10K" pressure rating mean?
A: "10K" is a Japanese (JIS) pressure class designation. It is roughly equivalent to PN16 (16 bar) or ANSI Class 150, indicating the valve's maximum allowable pressure at room temperature. -
Q: Can this valve be used for seawater applications?
A: Yes, the 316L stainless steel disc offers good resistance to chloride-induced corrosion, making it suitable for seawater or brackish water applications. However, for prolonged exposure, specific seat material selection is recommended. -
Q: What is the difference between a wafer and a lug-style butterfly valve?
A: A wafer valve is installed between two flanges using long bolts. A lug-style valve has threaded inserts (lugs) on the body, allowing it to be installed using bolts directly into these lugs, providing a potential dead-end service capability which wafer valves generally do not. -
Q: Is the valve suitable for throttling (flow control) applications?
A: While butterfly valves can be used for throttling, their flow characteristics are more linear in the 0-60 degree opening range. For precise control, a characterized disc or specific actuator positioning is recommended. -
Q: What types of actuators can be fitted?
A: The valve is designed with a standardized drive square (e.g., ISO 5211 mounting pad) to accommodate a wide range of pneumatic (double-acting or spring-return) and electric actuators from various manufacturers. -
Q: Are spare parts like seats readily available?
A: Yes, as a manufacturer, we maintain an inventory of standard spare parts, including PTFE and EPDM seat rings. Custom seat materials may have longer lead times. -
Q: What is the typical delivery time for an order?
A: Delivery time depends on order quantity and valve size. Standard sizes are often available from stock or have shorter production cycles. We provide estimated lead times upon receipt of your inquiry. -
Q: Do you offer customization, such as different disc or seat materials?
A: Yes, we offer customization options. Materials like different stainless steel grades (304, 316), special coatings, or alternative elastomer seats (Viton, NBR) can be provided based on your application needs and upon request.
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