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Help CenterGB/T3036 Butterfly Valve With Manual Lever and Cast Iron Body for Chemical Processing
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As a leading manufacturer with ISO9001-certified production systems, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance GB/T3036 Butterfly Valve. Engineered specifically for demanding chemical processing applications, this valve combines robust cast iron construction with a reliable manual lever operation to deliver precise flow control and long-term durability. Since our establishment in 2016, we have dedicated ourselves to producing industrial valves that meet stringent international standards, ensuring our products perform reliably in markets across North America, South America, Europe, Asia, and beyond. This butterfly valve is a testament to our commitment to quality, offering a cost-effective and efficient solution for managing corrosive and abrasive media in your chemical processing lines.
Our GB/T3036 Butterfly Valve is designed to meet the rigorous demands of chemical processing environments. Its core features and benefits are outlined below:
- Robust Construction: The valve body is made from high-grade cast iron, providing exceptional strength and resistance to mechanical stress and pressure surges common in chemical plants.
- Corrosion-Resistant Components: The disc is typically constructed from stainless steel (304 or 316), offering excellent resistance to a wide range of corrosive chemicals, acids, and alkalis.
- Reliable Sealing: Equipped with an EPDM or NBR seat, the valve ensures a bubble-tight seal, preventing leakage and ensuring process integrity and safety.
- Manual Lever Operation: The simple yet effective manual lever allows for quick 90-degree operation from fully open to fully closed, enabling fast isolation and easy visual indication of valve position.
- Versatile Connection Options: Available in both wafer and lug styles, the valve facilitates easy installation between flanges, reducing installation time and cost.
- Wide Temperature & Pressure Range: Suitable for a broad operating temperature range and standard pressure ratings, making it adaptable to various process conditions.
The following table details the key technical specifications for our standard product range:
| Parameter | Specification |
|---|---|
| Standard | GB/T 3036 |
| Body Material | Cast Iron |
| Disc Material | Stainless Steel 304/316 (Optional) |
| Seat Material | EPDM (Standard), NBR (Optional) |
| Operation | Manual Lever (Lockable Handle Optional) |
| Connection | Wafer, Lug |
| Pressure Rating | PN10, PN16 |
| Temperature Range | -20°C to +120°C (with EPDM seat) |
| Size Range (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600 |
| Face-to-Face Dimension | According to GB/T 3036 Standard |
Choosing our butterfly valve provides significant advantages for your chemical processing operations:
- Enhanced Process Safety: The reliable sealing and robust construction minimize the risk of leaks, protecting personnel and the environment.
- Reduced Maintenance Costs: The durable materials and simple design lead to a long service life with minimal maintenance requirements.
- Improved Flow Control Efficiency: The low-profile design offers minimal pressure drop, and the quick-acting lever allows for rapid system response.
- Cost-Effectiveness: Compared to other valve types like gate or globe valves, butterfly valves offer a more compact and economical solution for on/off and throttling services in large pipe diameters.
- Customization Available: We understand that applications vary. Modifications such as different seat materials, disc coatings, or extended shafts for insulation can be accommodated upon request.
With an annual export value consistently between US$1 Million and US$1.5 Million and a presence in major global markets from North America and Europe to Southeast Asia and Africa, Shanghai Zhibang has proven its capability to deliver reliable industrial solutions worldwide. Our products are shipped efficiently from key ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery. Backed by our ISO9001 quality management certification, every GB/T3036 Butterfly Valve undergoes rigorous testing to guarantee it meets the specified performance criteria. This valve is not just a component; it's a dependable partner for your chemical processing systems, designed to enhance operational reliability and efficiency. Contact us today to discuss your specific requirements or to request a sample.
Frequently Asked Questions (FAQ)
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Q: Is this butterfly valve suitable for controlling aggressive acids?
A: Yes, when configured with a stainless steel 316 disc and a PTFE or FKM seat (available upon request), the valve can handle many aggressive chemicals. Please provide the specific fluid details for a precise material recommendation. -
Q: Can the manual lever be locked in position?
A: Absolutely. A lockable handle option is available to secure the valve in either the open or closed position, which is crucial for safety and process control in many applications. -
Q: What is the main difference between wafer and lug style connections?
A: A wafer-style valve is installed between two flanges using longer bolts. A lug-style valve has threaded inserts (lugs) on the valve body, allowing it to be bolted directly to each flange independently, which can be beneficial for end-of-line service or easier maintenance. -
Q: What is the expected service life of the valve seat?
A: The service life depends on the operating conditions (media, temperature, cycle frequency). Under standard chemical service with compatible media, EPDM seats typically offer a long operational life. Regular inspection is recommended as part of preventive maintenance. -
Q: Do you offer valves in sizes outside the listed DN50-DN600 range?
A: Our standard production covers DN50 to DN600. For special sizes, we can explore custom manufacturing solutions. Please inquire with your specific size requirements. -
Q: Are these valves tested before shipment?
A: Yes, as part of our ISO9001 quality assurance process, each valve undergoes pressure and seat leakage tests according to relevant standards to ensure performance and integrity. -
Q: Can this valve be used for throttling (partial flow control)?
A: While primarily designed for on/off service, the manual lever allows for intermediate positioning, making it suitable for basic throttling applications. For precise and frequent throttling, a gear operator is recommended. -
Q: What documentation is provided with the valves?
A> Standard documentation includes a material test certificate and a manual. Additional certifications, such as a full inspection report, can be provided upon request.
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