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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 thumbnail-3

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 thumbnail-4

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 thumbnail-5

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 photo-1

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 photo-2

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 photo-3

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 photo-4

JIS F7481 Pneumatic Wafer Butterfly Valve With Double Acting Actuator, DN50 to DN300 photo-5

Product Spotlights

JIS F7481 compliant pneumatic wafer butterfly valve with double-acting actuator for reliable automated flow control. Available in DN50-DN300 sizes, it features durable construction, bubble-tight sealing with various seat options, and low operating torque. Ideal for water treatment, HVAC, and industrial processes, offering easy maintenance and cost-effective automation.

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

Key Specifications

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Standard:

JIS F7481

Application:

Other, Water Treatment

Operation Type:

Pneumatic Double Acting Actuator

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, Water Treatment

Operation Type Pneumatic Double Acting Actuator

Size Range DN50 to DN300

Connection Type Wafer

Body Material Ductile Iron, Cast Iron, Stainless Steel (Optional)

Seat Material EPDM, NBR, PTFE (Customizable)

Disc Material Ductile Iron, Stainless Steel (Optional)

Max. Working Pressure 10 bar (Standard)

Temperature Range -20°C to +120°C (Depends on Seat)

As a leading manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering high-performance industrial valves to a global clientele. Our JIS F7481 Pneumatic Wafer Butterfly Valve with Double Acting Actuator exemplifies our commitment to precision engineering and operational reliability. Designed for seamless integration into automated systems, this valve offers efficient flow control for a wide range of demanding applications, providing our partners with a dependable solution that enhances process efficiency and reduces maintenance costs.

This robust valve series combines the simplicity of a wafer-style butterfly valve with the precise control of a pneumatic actuator, creating a compact and powerful package for on/off and modulating duties.

JIS F7481 Standard Compliance: Manufactured in strict adherence to the Japanese Industrial Standard F7481, ensuring dimensional interchangeability, reliable performance, and compatibility with piping systems following this specification worldwide.
Pneumatic Double Acting Actuator: The actuator requires air supply to both ports for opening and closing, providing high torque output and reliable positioning. This design is suitable for applications where a fail-safe position is not required or can be managed externally.
Versatile Size Range: Available from DN50 (2") to DN300 (12"), catering to various pipeline dimensions and flow capacity requirements across different industrial scales.
Compact Wafer Design: The wafer-style body installs between two pipeline flanges using bolts, saving significant space and weight compared to lug or flanged-end valves, which simplifies installation and reduces overall system cost.
Superior Sealing Performance: Equipped with high-quality elastomer seats (options like EPDM, NBR) or PTFE, ensuring bubble-tight shut-off and excellent resistance to a variety of media, including water, air, and mild chemicals.
Durable Construction: The valve body and disc are typically crafted from ductile iron or stainless steel (upon request), offering excellent corrosion resistance and mechanical strength for long service life in challenging environments.
Low Operating Torque: The 90-degree rotary disc design combined with a balanced disc profile minimizes the torque required for operation, allowing for the use of a smaller, more economical actuator and reducing air consumption.
Easy Maintenance: Features a simple design with minimal moving parts. The seat is often replaceable, and the actuator can be serviced or replaced without removing the valve body from the pipeline, significantly reducing downtime.

Technical Specifications Overview:

Parameter	Specification
Product Standard	JIS F7481
Valve Type	Wafer Butterfly Valve
Actuator Type	Pneumatic, Double Acting
Size Range (Nominal Diameter)	DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300
Connection	Wafer (Between Flanges)
Body Material (Typical)	Ductile Iron (GGG40/50), Cast Iron, Stainless Steel (CF8/CF8M) Optional
Disc Material (Typical)	Ductile Iron, Stainless Steel Coated/Uncoated
Seat Material (Common Options)	EPDM, NBR, PTFE, Viton® (FKM) Available
Max. Working Pressure (PN)	PN10 (10 bar) Standard
Temperature Range (Depends on Seat)	EPDM: -20°C to +120°C; NBR: -10°C to +80°C; PTFE: -30°C to +200°C
Actuator Air Supply Pressure	4-7 bar (Standard), Customizable
Action	90° Quarter Turn (Fully Open to Fully Closed)
Flow Characteristic	Approximately Equal Percentage (for modulating)

Advantages and Customer Benefits:

Enhanced Process Automation: Enables fully automated flow control, improving system efficiency and reducing manual labor.
Reliable Shut-off: Provides tight sealing, minimizing leakage and product loss, which is crucial for cost control and environmental safety.
Rapid Response: The pneumatic actuator allows for fast opening and closing cycles, suitable for processes requiring quick adjustments.
Wide Compatibility: Compliance with JIS F7481 ensures it fits seamlessly into existing piping systems in many Asian and international markets.
Cost-Effective Solution: The combination of a simple valve design and efficient actuator offers a favorable total cost of ownership with low maintenance needs.

Backed by our ISO9001-certified quality management system, every valve undergoes rigorous testing to ensure it meets stringent performance criteria. With an annual export value ranging between US$1 Million and US$1.5 Million, Shanghai Zhibang has established a trusted supply chain to major markets across North America, South America, Europe, Asia, Africa, and Oceania. Our strategic location in Shanghai, with multiple shipment ports including Shanghai, Guangzhou, Hong Kong, and Beijing, guarantees flexible and efficient logistics. Choosing our JIS F7481 Pneumatic Butterfly Valve means partnering with a dedicated manufacturer that delivers consistent quality, reliable performance, and expert support for your flow control applications.

Frequently Asked Questions (FAQ):

Q: What is the main difference between a double-acting and a spring-return (single-acting) actuator on this valve?
A: A double-acting actuator uses air pressure to both open and close the valve. A spring-return actuator uses air to move in one direction (e.g., open) and a built-in spring to return to its original position (e.g., closed) when air is released, providing a fail-safe action. The choice depends on your process safety requirements.
Q: Can this valve be used for throttling or flow control, or is it only for on/off service?
A: Yes, when paired with a positioner and a compatible control signal (e.g., 4-20mA), this pneumatic butterfly valve can perform precise modulating control for throttling applications, not just simple on/off functions.
Q: Are the flanges included with the wafer valve?
A: No, the wafer valve is designed to be installed between two existing pipeline flanges. The flanges are not part of the valve package and must be supplied separately according to your piping specifications.
Q: What air preparation units are recommended for the pneumatic actuator?
A: We recommend installing a filter-regulator-lubricator (FRL) unit upstream of the actuator. This ensures clean, dry, and properly lubricated air supply, which extends the actuator's lifespan and ensures reliable operation.
Q: Is the seat material replaceable, and how difficult is it?
A> In most designs, the seat is replaceable. The process typically involves removing the actuator, opening the valve, and extracting the old seat ring before installing a new one. It is a standard maintenance procedure that can be performed without specialized tools in many cases.
Q: What is the lead time for an order of DN200 valves?
A: Lead times vary based on order quantity and specific configuration (material, seat type). Generally, for standard configurations, we maintain stock for common sizes. Please contact our sales team with your detailed requirements for an accurate delivery schedule.
Q: Can you provide valves with different end connections, like lug or flanged ends?
A: Yes. While this specific product is a wafer type, Shanghai Zhibang manufactures a full range of butterfly valves with lug and flanged ends. We can discuss your project needs and provide the most suitable connection type.
Q: Do you offer customization for special coatings or materials for corrosive applications?
A: Absolutely. We offer various material upgrades, including stainless steel bodies/discs, special epoxy coatings, and high-grade seat materials like PTFE or Viton®. Customization is available upon request to meet specific chemical resistance or temperature requirements.