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As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance Fast Acting Pneumatic Wafer Butterfly Valve, designed and manufactured in strict accordance with the JIS F7481 standard. Since our establishment in 2016, we have been committed to delivering reliable and efficient flow control solutions to a global clientele across North America, South America, Europe, Asia, Africa, and Oceania. This valve is engineered for applications demanding rapid, precise, and dependable on/off or modulating control, offering superior performance in a compact, wafer-style design that simplifies installation and reduces system costs.
Our valve is built to meet the rigorous requirements of various industrial processes. Its core advantages include:
- Rapid Response & High Efficiency: The pneumatic actuator ensures fast opening and closing actions, typically within seconds, enabling quick process adjustments and enhancing overall system responsiveness. This is crucial for automated systems and emergency shutdown scenarios.
- JIS F7481 Compliance: Manufactured per the Japanese Industrial Standard F7481, this valve guarantees dimensional interchangeability, reliable performance metrics, and compatibility with piping systems following this widely recognized standard, particularly in Asian and international markets.
- Robust Construction & Material Options: We utilize high-grade materials to ensure durability and corrosion resistance. The body is commonly available in ductile iron or cast iron with epoxy coating, while the disc is typically stainless steel. The seat materials, such as EPDM, NBR, or PTFE, are selected based on the fluid media and temperature requirements.
- Compact Wafer Design: The wafer-style valve fits securely between two pipeline flanges using bolts, eliminating the need for a flange on the valve body itself. This results in a lighter, more space-saving, and cost-effective installation compared to lug or flanged-end valves.
- Versatile Pneumatic Actuation: Available in double-acting (air to open, air to close) or spring-return (single-acting) configurations. Options include solenoid valves, limit switches, positioners, and other accessories for complete automation integration.
- Bubble-Tight Shut-off (Optional): With high-performance seat materials like reinforced PTFE, the valve can achieve excellent sealing and bubble-tight shut-off, suitable for demanding applications.
The technical specifications of our Fast Acting Pneumatic Wafer Butterfly Valve are detailed below:
| Parameter | Specification / Options |
| Design Standard | JIS F7481 |
| Size Range (Nominal Diameter) | DN50 (2") to DN600 (24") |
| Pressure Rating | PN10, PN16, JIS 10K |
| Body Material | Ductile Iron (Epoxy Coated), Cast Iron, Stainless Steel (CF8M) |
| Disc Material | Stainless Steel (304, 316), Ductile Iron |
| Seat Material | EPDM (for water), NBR (for oil), PTFE (for chemicals, high temp) |
| Actuator Type | Pneumatic Double Acting / Spring Return (Single Acting) |
| Operating Pressure (Air Supply) | 4-7 bar (Standard), other ranges customizable |
| Operating Temperature | Depends on seat: EPDM/NBR (-20°C to 120°C), PTFE (-30°C to 200°C) |
| Connection | Wafer type, conforming to JIS flange dimensions |
| Accessories (Optional) | Solenoid Valve, Limit Switches, Positioner, Manual Override, Air Filter Regulator |
By choosing our valve, you benefit from reduced maintenance due to its simple design, lower total cost of ownership, and improved process control reliability. It is an ideal solution for water treatment, chemical processing, HVAC, power generation, food and beverage, and general industrial services.
Backed by our ISO9001 certified quality management system and an annual export value ranging between US$1 Million and US$1.5 Million, Shanghai Zhibang Valve has established a strong reputation for consistency and reliability. We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics to our main markets worldwide. Our extensive experience serving diverse global regions means we understand the specific requirements of different industries and standards. Trust in our manufacturing expertise to provide you with a pneumatic wafer butterfly valve that combines fast-acting performance with durable construction and JIS standard compliance. Contact us today to discuss your application requirements and receive a customized quotation.
Frequently Asked Questions (FAQ)
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Q: What is the main advantage of a "wafer" design over a "lug" design butterfly valve?
A: The wafer design is more compact and lighter. It is installed by clamping between two pipeline flanges, which reduces weight, saves space, and often lowers cost compared to lug-style valves that have threaded inserts for bolting. -
Q: Can this valve be used for throttling or flow control, or is it only for on/off service?
A: While it is excellent for fast on/off service, when equipped with a pneumatic positioner and a suitable actuator, it can also perform precise modulating control for flow regulation. -
Q: What does "per JIS F7481 Standard" mean for my application?
A: It means the valve's face-to-face dimensions, flange connection details, pressure-temperature ratings, and testing procedures conform to the Japanese Industrial Standard. This ensures compatibility and interchangeability with other JIS-standard piping components, which is common in many international projects. -
Q: What is the difference between double-acting and spring-return (single-acting) pneumatic actuators?
A: Double-acting actuators use air pressure to both open and close the valve. Spring-return actuators use air to move the valve in one direction (e.g., open) and a built-in spring to return it (e.g., close) when air pressure is released, providing fail-safe operation. -
Q: What seat material do you recommend for handling drinking water?
A: For potable water applications, EPDM rubber seats are typically recommended as they are compliant with relevant water quality standards and offer good sealing performance. -
Q: Is a manual override available on the pneumatic actuator?
A: Yes, a manual override feature is available as an optional accessory. It allows for manual operation of the valve in case of air supply failure or for maintenance purposes. -
Q: What is the typical lead time for orders?
A: Lead times vary based on order quantity, size, and material specifications. Standard configurations generally have shorter lead times. Please contact our sales team for an accurate delivery schedule. -
Q: Do you provide technical support for installation and integration into our control system?
A: Yes, we provide technical documentation, datasheets, and support. For complex integrations involving accessories like solenoid valves or positioners, our engineering team can offer guidance.
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