Marine Butterfly Valve for FGD Tower Applications, Duplex Stainless Steel Body, High Pressure Rated
Product Spotlights
Shanghai Zhibang Valve Manufacture Co., Ltd., a specialized manufacturer established in 2016, proudly presents our robust Marine Butterfly Valve for FGD Tower Applications. Engineered with a Duplex Stainless Steel Body and designed for High Pressure environments, this valve is a critical solution for demanding marine and flue gas desulfurization systems. Our commitment to ISO9001-certified processes ensures each valve delivers reliable performance, durability, and cost-efficiency for your industrial operations.
This valve is specifically designed to withstand the corrosive and high-pressure conditions prevalent in marine applications and FGD towers. The choice of Duplex Stainless Steel provides superior resistance to chloride-induced stress corrosion cracking, pitting, and erosion, which are common challenges in seawater and acidic flue gas environments. Its streamlined butterfly design offers quick actuation and effective flow control, making it an ideal component for scrubbers, seawater cooling systems, and exhaust gas treatment pipelines.
- Corrosion Resistance Champion: The Duplex Stainless Steel construction offers exceptional resistance to a wide range of corrosive media, including seawater, acidic solutions (from SO2 scrubbing), and abrasive slurries, ensuring long service life.
- High Pressure Integrity: Designed and rated for high-pressure systems, the valve maintains seal integrity and structural stability under significant pressure differentials, crucial for FGD tower pump discharges and marine piping.
- Optimized Flow Control: The disc design minimizes turbulence and pressure drop, facilitating efficient fluid handling and reducing energy consumption in pumping systems.
- Robust Sealing Options: Available with PTFE seats for excellent sealing and chemical resistance or metal seats for higher temperature and abrasive service, providing flexibility for specific application needs.
- Versatile Actuation: Supports manual lever, gearbox, pneumatic actuator, or electric actuator configurations, allowing for integration into automated control systems or manual operation setups.
- Compact & Lightweight Design: Compared to gate or globe valves, the butterfly design offers a compact profile and lighter weight, simplifying installation and reducing structural support requirements.
Below is a summary of key technical specifications and options:
| Parameter | Details / Options |
| Primary Material (Body/Disc) | Duplex Stainless Steel (e.g., UNS S32205/S31803) |
| Size Range (Nominal Diameter) | DN50 (2") to DN600 (24") - Custom sizes available upon request |
| Pressure Rating Class | High Pressure (Specific PN/Class customizable per project) |
| Connection Type | Wafer type (between flanges) or Lug type (bolt holes for flange connection) - Optional |
| Seat Material | PTFE (Standard for corrosion resistance) or Metal Seat (for high temp/abrasion) - Optional |
| Actuation Method | Manual Lever, Gear Operator, Pneumatic Actuator, Electric Actuator - Optional |
| Operating Temperature Range | Standard: Up to 200°C with PTFE seat. Higher ranges with metal seat (Customizable) |
| Face-to-Face Dimensions | Complies with international standards (e.g., ISO, ANSI) - Specific dimensions provided per size |
The benefits for your project are clear:
- Extended Asset Life: Superior corrosion resistance reduces maintenance frequency and replacement costs, protecting your capital investment.
- System Reliability: High-pressure rating and robust design ensure the valve performs reliably under demanding conditions, minimizing downtime risks.
- Operational Efficiency: Quick opening/closing and low flow resistance contribute to smoother system operation and potential energy savings.
- Installation & Maintenance Savings: The compact design reduces space needs and installation time. Easy maintenance features lower long-term service costs.
- Application-Specific Fit: With customizable options for size, actuation, and sealing, the valve can be tailored to match your exact marine or FGD system specifications.
Trust in Shanghai Zhibang Valve's manufacturing expertise. Since our establishment in 2016, we have grown to serve a global clientele across North America, South America, Europe, Asia, Africa, and Oceania, with an annual export value ranging between US$1 Million and US$1.5 Million. Our ISO9001 certification underpins a consistent quality management system, ensuring every Marine Butterfly Valve meets stringent performance standards. We ship efficiently from major ports like Shanghai, Guangzhou, Hongkong, and Beijing. Choose our Duplex Stainless Steel High-Pressure Butterfly Valve for a durable, reliable, and cost-effective solution that stands up to the toughest marine and FGD environments. Contact us today to discuss your project requirements or request a detailed quotation.
Frequently Asked Questions (FAQ)
-
Q: Why is Duplex Stainless Steel specifically chosen for marine and FGD applications?
A: Duplex Stainless Steel offers a combination of high strength and excellent corrosion resistance, particularly against chloride-induced stress corrosion cracking (common in seawater) and acidic environments (like in FGD scrubbers). It provides better durability than standard stainless steels in these aggressive conditions. -
Q: What does "High Pressure Rated" mean for this valve? Can you provide specific pressure classes?
A: "High Pressure Rated" indicates the valve is designed to withstand significant internal pressure without failure. Specific pressure classes (like PN16, PN25, PN40, or ANSI Class 150, 300) are determined based on your project's design pressure. We customize the rating to meet your system requirements. -
Q: Is this valve suitable for both seawater intake and chemical slurry lines in an FGD system?
A: Yes, the Duplex Stainless Steel body and available PTFE or metal seat options make it suitable for a range of media, including seawater, alkaline/acidic scrubbing solutions, and abrasive slurries. The exact seat material selection depends on the temperature and abrasiveness of the specific fluid. -
Q: What are the main differences between Wafer and Lug connection types?
A: A Wafer-style valve is installed between two pipe flanges, with the flanges bolted together through the valve's body. A Lug-style valve has threaded bolt holes on its body; it can be bolted to each flange independently, which can be beneficial for end-of-line connections or where one side needs to be disconnected. -
Q: Can this valve be equipped with an actuator for remote or automated control?
A: Absolutely. We offer options for pneumatic (air-operated) and electric actuators. These can be integrated with your plant's control system for automated opening, closing, or modulating control based on process signals. -
Q: What is the typical delivery time for standard sizes?
A: For standard sizes within our DN50-DN600 range, the typical delivery time is approximately 4-6 weeks after order confirmation, depending on order quantity and specific configuration. Custom sizes or special requirements may require additional time. -
Q: Do you provide testing and documentation for the valves?
A: Yes, as an ISO9001-certified manufacturer, we perform standard inspections and tests (like material verification, dimension check, pressure testing). Relevant documentation, including material certificates and test reports, can be provided upon request. -
Q: Are spare parts like seals or discs available for future maintenance?
A: Yes, we maintain a stock of common spare parts and can supply them separately. We recommend keeping a set of critical spare parts (like seat rings) to facilitate quick maintenance when needed.
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