Marine Desulfurization Tower Butterfly Valve With Extended 2-Year Warranty on Seal Assembly
Product Spotlights
As a professional manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Marine Desulfurization Tower Butterfly Valve. Engineered to meet the rigorous demands of marine exhaust gas cleaning systems (EGCS), this valve is a critical component for ensuring compliance with stringent international emissions regulations like IMO 2020. Our commitment to reliability is underscored by an extended 2-year warranty on the seal assembly, providing ship owners and system integrators with unparalleled peace of mind and reduced lifecycle costs. With an annual export value of US$1-1.5 million and a presence in major global markets, we deliver proven quality directly from our manufacturing base in Shanghai.
This butterfly valve is specifically designed for the harsh, corrosive environment inside marine desulfurization scrubbers. It controls the flow of seawater, alkaline solutions, and treated effluent with high efficiency and dependable shut-off.
Key Product Features & Technical Advantages:
- Robust Construction for Corrosive Service: The valve body and disc are manufactured from materials such as cast steel with special coatings, 316/316L stainless steel, or super duplex alloys to withstand the corrosive effects of seawater and alkaline scrubbing solutions.
- High-Performance Seal Assembly: The heart of the valve features a precision-engineered seal. We utilize advanced materials like reinforced PTFE or peroxide-cured EPDM, offering exceptional resistance to chemical attack, wide temperature tolerance, and long-term sealing integrity.
- Extended 2-Year Seal Warranty: This unique offering demonstrates our confidence in the durability of our seal design and materials. It significantly lowers the total cost of ownership by mitigating the risk and cost of premature seal failure.
- Optimized Flow Characteristics: The disc profile is designed to minimize pressure drop across the valve, ensuring efficient system operation and reducing pump energy consumption.
- Versatile Actuation Options: The valve can be supplied with manual operation (lever or gearbox) for simple on/off duty, or fitted with electric or pneumatic actuators for automated control integration into the ship's central monitoring system.
- Bubble-Tight Shut-Off: Ensures zero leakage when closed, crucial for maintaining scrubber efficiency and preventing cross-contamination between different process stages.
Detailed Technical Specifications:
| Parameter | Specification / Options |
|---|---|
| Valve Type | Centric / High-Performance Butterfly Valve |
| Size Range | DN50 to DN2000 (2" to 80") |
| Pressure Rating | PN6, PN10, PN16, PN25 (Class 150, Class 300) |
| Body Materials | WCB, CF8/CF8M (SS316), Duplex/F51, with optional internal coatings |
| Seal Materials | PTFE, EPDM, HNBR, FKM (Viton) available |
| Disc Materials | Aligned with body material or with protective coating |
| Stem Material | Stainless Steel (410/420, 316) or Duplex Steel |
| Connection Standards | Wafer, Lug, Double Flange per ISO, DIN, ANSI, JIS |
| Temperature Range | -20°C to +180°C (dependent on seal material) |
| Operation | Manual (Lever/Gear), Electric Actuator, Pneumatic Actuator |
Benefits for Our Clients:
- Regulatory Compliance Assurance: A reliable valve is essential for continuous scrubber operation, helping vessels adhere to ECA and global sulfur cap regulations without interruption.
- Reduced Maintenance & Downtime: The robust design and warranted seal assembly translate to fewer unscheduled repairs, lower spare parts inventory, and maximized vessel operational time.
- Long Service Life: Corrosion-resistant materials and superior engineering ensure the valve withstands the challenging marine environment for years.
- System Efficiency: Low flow resistance contributes to optimal pump performance and lower overall energy consumption of the scrubber system.
- Global Support & Supply: With shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, and extensive experience exporting to markets worldwide, we ensure timely delivery and reliable logistical support.
Shanghai Zhibang's manufacturing processes are backed by ISO9001 certification, guaranteeing consistent quality control from raw material inspection to final testing. Our valves undergo rigorous pressure tests, seat leakage tests, and operational cycle tests before shipment. Choosing our Marine Desulfurization Butterfly Valve means partnering with a dedicated manufacturer that stands behind its product with a tangible warranty commitment. This valve is not just a component; it's an investment in operational reliability and compliance security for your fleet. Contact us today to discuss your specific requirements and experience the Zhibang difference.
Frequently Asked Questions (FAQ):
-
Q: What makes this valve suitable specifically for marine desulfurization applications?
A: It is constructed from corrosion-resistant alloys and features seals compatible with seawater and alkaline chemicals commonly used in scrubbers. Its design prioritizes reliability in the high-vibration, salty marine atmosphere. -
Q: What exactly is covered under the extended 2-year warranty on the seal assembly?
A: The warranty covers defects in materials or workmanship of the primary seat seal ring and related sealing components under normal operating conditions within the specified temperature and pressure ranges for a period of two years from shipment. -
Q: Can this valve be customized for different scrubber system designs?
A: Yes. We offer customization in terms of material grades (like super duplex for highly chlorinated water), end connections to match your piping, and actuator types for integration with your control system. -
Q: What are the available actuation methods, and what is recommended?
A: Manual (lever/gear), electric, and pneumatic actuators are available. The choice depends on your automation needs, available power source (air or electricity), and frequency of operation. Electric or pneumatic is recommended for remotely operated systems. -
Q: What is the typical delivery lead time for standard sizes?
A: For standard configurations and materials, lead times are competitive and can be confirmed upon inquiry. Our multiple shipment ports facilitate efficient logistics. -
Q: Do you provide documentation and certifications with the valve?
A: Yes, standard documentation includes a material test report, pressure test certificate, and operation manual. Further certifications are available upon request. -
Q: How does the valve perform under high-pressure drop conditions?
A: As a high-performance butterfly valve, it is designed with a robust disc-stem connection and reinforced seat to handle the pressure differentials encountered in scrubber service effectively. -
Q: Is technical support available after purchase?
A: Absolutely. As the manufacturer, we provide ongoing technical support for installation guidance, maintenance advice, and troubleshooting throughout the valve's service life.
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