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Help CenterHeavy-Duty Butterfly Valve for Power Station Pump Control, DN800 Size Available
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As a leading valve manufacturer based in Shanghai, Shanghai Zhibang Valve Manufacture Co., Ltd. is dedicated to providing robust and reliable flow control solutions for critical industrial applications. Established in 2016, we have built a strong reputation for quality and performance, exporting our products worldwide. Our heavy-duty butterfly valves are engineered specifically for demanding environments like power station pump control systems, where reliability and precise regulation of high-volume flows are paramount. This DN800 valve represents our commitment to delivering durable components that ensure operational continuity and efficiency for our global clientele.
This heavy-duty butterfly valve is designed to handle the rigorous demands of power generation facilities. Its robust construction and thoughtful engineering provide several key advantages for system operators.
- Superior Durability: The valve body and disc are constructed from high-grade materials like ductile iron with corrosion-resistant epoxy coating or stainless steel, ensuring long service life even in harsh conditions involving water, mild chemicals, and varying temperatures.
- Excellent Flow Control: The streamlined disc design minimizes pressure drop across the valve, allowing for efficient flow with low energy loss. This is crucial for pump control, helping to optimize system efficiency and reduce operational costs.
- Bubble-Tight Shut-off: Featuring a resilient seat (available in EPDM, NBR, PTFE, etc.), the valve provides reliable, bubble-tight sealing in the closed position, preventing leakage and ensuring system integrity.
- Easy Operation and Maintenance: Available with manual gear operators, electric actuators, or pneumatic actuators, the valve offers smooth and reliable operation. The simple design allows for easy inspection and maintenance, minimizing downtime.
- Versatile Installation: Offered in both wafer and lug styles. The wafer type is installed between two pipeline flanges, while the lug style provides threaded inserts for bolting to flanges, making it suitable for end-of-line service.
Technical specifications for the standard DN800 model are outlined below. Custom configurations regarding materials, pressure ratings, and actuation are available upon request to meet specific project requirements.
| Parameter | Specification |
| Nominal Diameter (DN) | 800 mm (32") |
| Pressure Rating | PN10 / PN16 (Class 150 typical) |
| Body Material | Ductile Iron (GGG40), Carbon Steel (WCB), Stainless Steel (CF8/CF8M) |
| Disc Material | Ductile Iron with epoxy / Stainless Steel |
| Seat Material | EPDM, NBR, PTFE, or other elastomers |
| Stem Material | Stainless Steel (410/304/316) |
| Operation Type | Manual Lever, Manual Gear, Electric Actuator, Pneumatic Actuator |
| Connection Standard | EN 1092-2, ANSI B16.5, JIS B2220, etc. |
| Temperature Range | Depends on seat material (e.g., -10°C to 120°C for EPDM) |
| Flow Characteristic | Approximately equal percentage |
For power plant engineers and procurement managers, the benefits of selecting this valve are clear. It contributes to reduced maintenance costs through its durable build, enhanced system efficiency via optimized flow control, and improved safety with reliable shut-off capabilities. Its adaptability to various actuation methods allows for seamless integration into both manual and automated control systems, providing flexibility for plant design and upgrades.
Shanghai Zhibang Valve operates under an ISO 9001 certified quality management system, ensuring every valve, including this heavy-duty DN800 model, meets stringent production and testing standards. Our products have gained trust in diverse global markets, from North America and Europe to Southeast Asia and Africa, with an annual export value reflecting consistent customer satisfaction. We support shipments from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, facilitating smooth logistics. When you choose our valve, you are not just purchasing a component; you are investing in a reliable solution backed by a manufacturer committed to quality and service. Contact us today to discuss your specific power station valve requirements and receive a detailed quotation.
Frequently Asked Questions (FAQ)
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Q: What is the main application for this DN800 butterfly valve?
A: This valve is specifically engineered for heavy-duty flow control applications, most commonly for regulating cooling water, condenser water, or other process fluids in power station pump systems. Its large size and robust design make it suitable for main pipeline isolation and control. -
Q: Can this valve be used with different types of actuators?
A: Absolutely. The valve is designed to be compatible with various actuation methods. You can select from manual lever, manual gearbox, electric actuators, or pneumatic actuators based on your system's automation level and control requirements. -
Q: What are the differences between Wafer and Lug type designs?
A: A Wafer-style valve is installed between two pipeline flanges using long bolts that pass through both flanges. A Lug-style valve has threaded inserts (lugs) on the valve body, allowing it to be bolted directly to each flange. The lug type is often preferred for end-of-line service or when one side of the pipeline needs to be disconnected. -
Q: What pressure class is this valve rated for?
A: The standard pressure rating is PN10 or PN16 (approximately equivalent to Class 150). However, valves can be manufactured to higher pressure ratings (like PN25 or Class 300) upon request, depending on material selection and design. -
Q: How do I select the appropriate seat material?
A: Seat material selection depends on the fluid media and operating temperature. EPDM is common for cold water, NBR for oils and fuels, and PTFE (or similar) for higher temperatures or more aggressive chemicals. Our technical team can advise based on your specific service conditions. -
Q: Do you provide customization for non-standard sizes or specifications?
A: Yes, as a manufacturer, we have the capability to customize valves. This includes non-standard sizes, special material combinations, extended stems, different face-to-face dimensions, or specific painting requirements. Please provide your detailed specifications for a quote. -
Q: What testing is performed on the valves before shipment?
A: Each valve undergoes routine tests, which typically include a shell strength test (hydrostatic pressure test) and a seat leakage test (usually with air or water) to ensure it meets the specified performance standards before leaving our factory. -
Q: What is your typical lead time for an order of DN800 valves?
A: Lead time varies based on order quantity, material specifications, and actuation choices. For standard configurations, lead times are generally competitive. We recommend contacting our sales team with your project timeline for an accurate production and delivery schedule.
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