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Help CenterJIS F7481 Large Diameter Butterfly Valve With 2-Year Warranty and Mill Test Report
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As a leading manufacturer in the valve industry since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance JIS F7481 Large Diameter Butterfly Valve. Engineered for demanding industrial applications, this valve is designed to offer reliable shut-off and control for large-scale fluid systems. We back our confidence in its durability and performance with a comprehensive 2-Year Warranty and provide full traceability through the accompanying Mill Test Report, ensuring material integrity and quality assurance from the foundry to the final installation.
This valve is constructed to meet the stringent requirements of the Japanese Industrial Standard JIS F7481, making it a suitable choice for global markets, including our primary export regions in North America, Southeast Asia, Europe, and beyond. Its robust design is ideal for handling water, air, and other neutral media in critical infrastructure projects, water treatment plants, HVAC systems, and various industrial processes.
Key Product Features & Technical Advantages:
- Precision Engineering & Compliance: Manufactured in strict adherence to JIS F7481 standards, ensuring dimensional accuracy, performance reliability, and interchangeability. This compliance is crucial for projects with specific Japanese standard requirements or for those seeking high-quality international valve solutions.
- Robust Construction for Large Diameters: Specifically engineered for large pipe sizes (from DN50 up to DN1200), the valve features a reinforced body and disc design to withstand pipeline stresses and maintain a tight seal under varying pressure conditions.
- Superior Sealing Performance: Equipped with a high-quality elastomer seat (EPDM, NBR) or PTFE seat options, providing excellent bubble-tight shut-off, chemical resistance, and long service life even with frequent cycling.
- Low Torque Operation & Efficiency: The streamlined disc design and precision-machined shaft result in low operating torque. This allows for the use of smaller, more cost-effective manual gear operators or actuators, reducing overall system cost and energy consumption.
- Versatile End Connection Options: Available in wafer, lug, and double-flanged designs to suit different piping system requirements and installation preferences, offering flexibility for engineers and contractors.
- Corrosion-Resistant Material Selection: Key components are available in various material grades, including ductile iron with epoxy coating, stainless steel (CF8/CF8M), and specialized alloys upon request, to combat corrosion in different environmental and media conditions.
Technical Specifications at a Glance:
| Parameter | Specification |
| Design & Manufacturing Standard | JIS F7481 |
| Nominal Diameter (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000, 1200 |
| Pressure Rating | PN10, JIS 10K, 150LB (Standard) |
| Body Material | Cast Iron (GG25), Ductile Iron (GGG40), Carbon Steel (WCB), Stainless Steel (CF8/CF8M) |
| Disc Material | Ductile Iron (Epoxy Coated), Stainless Steel (304/316), Aluminum Bronze |
| Stem Material | Stainless Steel (420/304/316) |
| Seat Material | EPDM, NBR, Viton (FKM), PTFE |
| Operating Temperature | -10°C to +120°C (for EPDM), up to +200°C (for PTFE) |
| Operation Type | Lever Handle, Worm Gear Operator, Pneumatic/Hydraulic/Electric Actuator (Optional) |
Benefits for Your Project: Choosing our JIS F7481 valve translates into tangible project benefits. You gain a reliable and long-lasting component that minimizes maintenance downtime. The standard compliance simplifies procurement and approval processes. The large size availability caters to mainline and critical applications, while the 2-year warranty provides peace of mind and protects your investment. The provided Mill Test Report is a vital document for quality audits and ensures material traceability, a key requirement for many engineering, procurement, and construction (EPC) contracts.
With an annual export value ranging between US$1 Million and US$1.5 Million and a presence in major global markets from North America to Oceania, Shanghai Zhibang has established itself as a trusted partner for industrial valve solutions. Our ISO9001 certification underpins our commitment to consistent quality management in every valve we produce. We support our global clientele with efficient logistics from major ports like Shanghai, Guangzhou, and Hong Kong. When you select this large diameter butterfly valve, you are not just buying a product; you are securing a reliable flow control solution backed by manufacturer expertise, quality assurance, and dedicated support. Contact us today to discuss your specific requirements and request a detailed quotation.
Frequently Asked Questions (FAQ):
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Q: What is the significance of the JIS F7481 standard for this valve?
A: JIS F7481 is a Japanese Industrial Standard specifying the design, dimensions, materials, testing, and inspection requirements for butterfly valves. Valves conforming to this standard ensure high quality, reliability, and dimensional consistency, which is often required or preferred in projects across Asia and other regions influenced by Japanese engineering standards. -
Q: What does the 2-Year Warranty cover?
A: Our warranty covers defects in materials and workmanship under normal use and service conditions as specified in our technical documentation. It includes the repair or replacement of faulty components. The specific terms and conditions are detailed in the warranty certificate provided with the valve. -
Q: Why is a Mill Test Report (MTR) important?
A: A Mill Test Report is a certified document from the material manufacturer (the mill). It provides chemical composition and mechanical property test results for the raw materials (like castings) used in the valve. This report is crucial for quality verification, material traceability, and is often a mandatory submission for project approvals and compliance audits. -
Q: Can this valve be fitted with an actuator for automated control?
A: Yes, absolutely. The valve is designed to be compatible with various pneumatic, hydraulic, and electric actuators. The standard design includes a drilled and tapped shaft or a keyway to facilitate easy mounting of actuators. We can supply the valve as a manual unit or as a complete automated package upon request. -
Q: What are the main application areas for this large diameter valve?
A> This valve is well-suited for large-scale flow control applications, including municipal water supply and distribution, wastewater treatment plants, power generation cooling systems, industrial process water lines, HVAC systems for large buildings, irrigation systems, and shipbuilding (where JIS standards are common). -
Q: What is the lead time for large order quantities or special sizes?
A: Standard sizes and materials typically have shorter lead times. For large project orders or valves outside the standard DN1200 range, the lead time may vary. We recommend contacting our sales team with your specific quantity and specification list for an accurate production schedule. Our manufacturing flexibility allows us to accommodate custom requirements. -
Q: Do you provide installation and maintenance guidance?
A: Yes, we provide comprehensive installation, operation, and maintenance (IOM) manuals with each valve shipment. These guides contain detailed instructions, torque settings, and maintenance schedules to ensure optimal performance and longevity of the valve. -
Q: What are the available packaging options for export?
A: Valves are typically packaged in wooden crates or plywood boxes for optimal protection during long-distance sea freight. Internal protection includes anti-corrosion coatings (VCI paper or grease) and blocking to prevent movement. We can accommodate specific packaging requests to meet customer or destination country requirements.
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