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Help CenterDuctile Iron Gear Operated Wafer Butterfly Valve, GB/T3036 Standard, With Extended Service Life
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance Ductile Iron Gear Operated Wafer Butterfly Valve. Designed and manufactured in strict compliance with the GB/T3036 standard, this valve is engineered for demanding applications where reliability and longevity are paramount. We leverage our extensive experience supplying to global markets, including North America, Europe, and Southeast Asia, to produce a valve that offers exceptional value through its robust construction and extended service life, ensuring minimal downtime and lower total cost of ownership for our clients.
Our Ductile Iron Gear Operated Wafer Butterfly Valve stands out in the market due to its thoughtful design and quality-focused manufacturing process. Below are the key features and technical specifications that define this superior product:
- Superior Durability: The valve body and disc are crafted from high-grade ductile iron, providing excellent strength and impact resistance compared to standard cast iron, significantly enhancing the valve's operational lifespan.
- Precise and Reliable Operation: The gear operator ensures smooth, low-torque opening and closing, even under high-pressure conditions. This mechanism offers precise flow control and is ideal for applications requiring frequent operation or throttling.
- Extended Service Life Design: Critical components, such as the stem and seating surface, are designed with wear resistance in mind. The use of high-quality seat materials minimizes leakage and degradation over time.
- Versatile Sealing Options: We offer a selection of seat materials including EPDM for water and general services, NBR for oil applications, and PTFE for corrosive media or higher temperatures, allowing customization for your specific process needs.
- Compact and Lightweight Wafer Design: The wafer-style valve fits between two pipe flanges, held in place by the flange bolts. This design saves space, reduces weight, and lowers installation costs compared to lug-style valves.
- Broad Compatibility: Compliant with GB/T3036, this valve is designed to be interchangeable with other international standards, ensuring easy integration into existing piping systems worldwide.
The technical specifications for our standard valve series are detailed in the table below. Custom configurations outside these ranges are available upon request.
| Parameter | Specification |
| Body & Disc Material | Ductile Iron (GGG40/500-7) |
| Stem Material | Stainless Steel (SS416 / 2Cr13) |
| Seat Material (Standard) | EPDM |
| Connection Standard | Wafer, GB/T3036 (Compatible with ANSI, DIN, JIS) |
| Size Range (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000, 1200 |
| Pressure Rating (PN) | PN10, PN16 (Class 150 equivalent available) |
| Operating Temperature | -10°C to +120°C (with EPDM seat, varies with seat material) |
| Operation Method | Manual Gear Operator (Worm Gear) |
| Flow Characteristic | Approximately Equal Percentage |
| Face-to-Face Dimension | Per GB/T3036 Standard |
Choosing our valve translates into tangible benefits for your operations. The gear operation reduces operator fatigue and allows for better flow control in large-diameter pipelines. The ductile iron construction resists deformation under pressure, preventing seat distortion and ensuring a tight seal for years. Furthermore, the standard-compliant design facilitates easy sourcing of spare parts and simplifies maintenance procedures.
Backed by our ISO9001-certified quality management system, every valve undergoes rigorous testing before shipment. With an annual export value ranging from US$1 Million to US$1.5 Million, our products have proven their reliability across diverse industries and harsh environments in over a dozen major global markets, from the industrial hubs of Eastern Asia to the demanding projects in North America and the Middle East. We ship efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery. Trust Shanghai Zhibang for a butterfly valve solution that combines robust engineering, extended service life, and global supply chain support. Contact us today to discuss your specific requirements or to request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What is the main advantage of a gear-operated butterfly valve over a lever-operated one?
A: A gear operator provides significant mechanical advantage, drastically reducing the operating torque required. This makes opening and closing much easier, especially for larger valve sizes (DN200 and above) or higher pressure systems, and allows for more precise flow control during throttling applications.
Q2: Can this wafer valve be used as an isolation valve in a piping system?
A: Yes, absolutely. When fully closed, the valve provides a tight shut-off suitable for isolation. The wafer design means it must be installed between two flanges, and the pipeline pressure helps to seal it. For dead-end service or where the downstream side needs to be bled, a lug-style valve might be recommended.
Q3: Is the GB/T3036 standard compatible with ANSI or DIN flanges?
A: Yes, our valves manufactured to GB/T3036 are designed to be dimensionally compatible with common international standards like ANSI and DIN for the corresponding pressure classes (e.g., PN16 with Class 150). This ensures they can be installed between standard flanges without issues.
Q4: How does the "Extended Service Life" feature manifest in practical use?
A: This is achieved through multiple design choices: the use of ductile iron for superior strength and fatigue resistance, high-quality stainless steel stems resistant to corrosion and wear, and premium-grade seat materials that resist abrasion and chemical attack. Together, these factors reduce failure rates and maintenance frequency.
Q5: What media is this valve suitable for?
A: With the appropriate seat material selection, this valve is versatile. With an EPDM seat, it handles water, air, and general services. An NBR seat is suitable for oils and fuels, while a PTFE seat can handle more aggressive chemicals, acids, alkalis, and higher temperatures. Please consult with us for your specific media.
Q6: Do you offer actuators for automated operation?
A: While the standard configuration is manual gear operation, the valve design is compatible with the addition of electric, pneumatic, or hydraulic actuators for automated process control. We can provide the complete actuated package upon request.
Q7: What is the lead time for a custom order outside the standard size range?
A: Lead times for custom sizes or special configurations vary. Generally, for non-standard sizes within our manufacturing capability, lead time may extend by 2-4 weeks compared to standard stock items. We provide accurate timelines upon receipt of your detailed specifications.
Q8: What quality assurance measures are in place?
A: Our manufacturing process is ISO9001 certified. Each production batch undergoes material inspection, dimensional checks, pressure testing (seat and shell tests), and operational tests. Certificates of compliance and test reports can be provided with the shipment.
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