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Corrosion Resistant Marine Butterfly Valve for Scrubber Tower, PN1.0-4.0MPa, FGD System
Product Spotlights
Engineered for harsh scrubber tower and FGD environments, this marine butterfly valve offers exceptional corrosion resistance with pressure ratings up to PN4.0 MPa. It features durable material options like 316SS and specialized elastomers for reliable sealing against aggressive media. The compact, low-torque design ensures easy operation and space-saving installation. Available in multiple actuation styles, it helps reduce maintenance and extend system life in marine and industrial applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Valve Type:
Butterfly Valve
Pressure Rating (PN):
1.0-4.0 MPa
Primary Application:
Marine Scrubber Tower & FGD Systems
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Valve Type
Butterfly Valve
Pressure Rating (PN)
1.0-4.0 MPa
Primary Application
Marine Scrubber Tower & FGD Systems
Key Feature
Corrosion Resistant Construction
Connection Type
Wafer or Lug (Standard)
Actuation Options
Manual, Pneumatic, Electric
Seat Material
EPDM, FKM, or PTFE (Selectable)
Body Material
Ductile Iron, Cast Steel, or Stainless Steel
Disc Material
316 Stainless Steel, Nickel-plated, or Special Alloy
Design Standard
ISO, API, or DIN Standards Compliant
As a specialized manufacturer with a strong export record, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance Corrosion Resistant Marine Butterfly Valve, engineered specifically for the demanding environments of Scrubber Towers and Flue Gas Desulfurization (FGD) systems. Since our establishment in 2016, we have dedicated ourselves to producing robust industrial valves that meet international standards. This valve is a culmination of our expertise, designed to deliver reliable shut-off and flow control in applications where corrosion resistance and durability are non-negotiable. It offers a practical solution for shipbuilders, marine engineers, and power plant operators seeking to enhance system longevity and reduce maintenance costs.
Product Features & Technical Advantages:
- Superior Corrosion Protection: The valve is constructed with materials specifically chosen to withstand aggressive media commonly found in scrubber towers, such as seawater, acidic slurries, and flue gas condensates. Options include 316 stainless steel discs and specialized coatings.
- Robust Pressure Handling: With a pressure rating range of PN1.0 to PN4.0 MPa (approximately 145 to 580 psi), this valve is versatile enough for various stages within an FGD system, from inlet gas ducts to slurry recirculation loops.
- Excellent Sealing Integrity: Features a precision-engineered seat that ensures bubble-tight shut-off, minimizing leakage and protecting downstream equipment. Multiple elastomer seat options (EPDM, FKM, PTFE) are available to match specific chemical and temperature requirements.
- Low Torque Operation: The streamlined disc design and high-quality bearings result in low operating torque, which allows for smaller, more cost-effective actuators and reduces operator effort for manual versions.
- Compact & Lightweight Design: The wafer-style design (standard) provides a space-saving installation between flanges, reducing overall system weight and footprint—a critical advantage in marine applications.
- Multiple Actuation Methods: Available in manual lever/gear operation, pneumatic (double-acting or spring-return), or electric motorized versions, offering flexibility for automated control systems.
Detailed Technical Specifications:
| Parameter | Specification / Options |
|---|---|
| Valve Type | Centric Butterfly Valve |
| Pressure Rating (PN) | 1.0, 1.6, 2.5, 4.0 MPa (Selectable) |
| Size Range (DN) | DN50 to DN1200 (2" to 48") |
| Body Material | Ductile Iron (GGG40), WCB Cast Steel, CF8/CF8M Stainless Steel |
| Disc Material | 316 Stainless Steel (Standard), Nickel Plated, Duplex Stainless Steel, Hastelloy |
| Seat Material | EPDM (for water, mild chemicals), FKM/Viton (for acids, oils), PTFE (for broad chem. resistance) |
| Stem Material | Stainless Steel (416 or 304/316) with optional protective coating |
| Temperature Range | -20°C to +150°C (depends on seat material; PTFE up to 200°C) |
| Connection Standard | Wafer (10/16 hole pattern), Lugged, Flanged (ASME/ANSI, DIN, JIS, GB) |
| Leakage Class | ANSI/FCI 70-2 Class VI (Bubble-tight) or Class IV (Standard) |
Benefits for Your Operation:
- Extended Service Life: The corrosion-resistant design directly translates to fewer replacements and lower total cost of ownership, even in harsh scrubber environments.
- Reduced Maintenance Downtime: Reliable performance minimizes unplanned shutdowns for valve repairs, keeping your FGD system or vessel operational.
- System Efficiency: Low pressure drop across the valve when fully open helps maintain optimal flow rates and reduces pump energy consumption.
- Compliance Support: A reliable valve is key to maintaining consistent scrubber tower performance, aiding in meeting environmental emission regulations.
- Global Compatibility: Designed to meet common international standards, facilitating installation and integration into both new projects and retrofit applications worldwide.
Frequently Asked Questions (FAQ):
-
Q: What makes this butterfly valve suitable for marine scrubber towers specifically?
A: Its construction emphasizes materials like 316 SS and specialized elastomers that resist corrosion from seawater, chlorides, and acidic compounds prevalent in scrubber slurry. The design also considers space and weight constraints typical on ships. -
Q: Can this valve handle both gas and liquid flows in an FGD system?
A: Yes, it is designed for multiphase flow. The sealing system is effective for both the inlet flue gas (before scrubbing) and the various liquid/slurry circuits within the scrubber loop. Material selection should be confirmed based on the specific phase and media. -
Q: Is the PN4.0 MPa rating suitable for high-pressure scrubber pump discharge lines?
A: Absolutely. The PN4.0 MPa (Class 600 equivalent) rating is engineered for high-pressure applications, such as slurry recirculation pump discharge, ensuring safe and reliable operation. -
Q: Are these valves available with emergency fail-safe features for automated systems?
A> Yes. For pneumatic actuation, spring-return actuators (fail-open or fail-close) can be provided. Electric actuators with battery backup or manual overrides are also optional for critical safety applications. -
Q: What is the typical lead time for an order of custom-sized valves?
A: Lead times vary based on size, material, and actuation requirements. Standard sizes and configurations often have shorter lead times. Please consult with our sales team for a specific project timeline. -
Q: Do you provide documentation like material certificates and test reports?
A> Yes, as an ISO9001 certified manufacturer, we can provide standard documentation including material test reports (MTRs) and factory test certificates (e.g., shell test, seat leakage test) upon request. -
Q: How do I select the right seat material (EPDM vs. FKM vs. PTFE) for my application?
A> The choice depends on fluid chemistry and temperature. EPDM is common for general water service, FKM/Viton offers excellent acid resistance, and PTFE provides the broadest chemical resistance. Our engineers can assist based on your media analysis. -
Q: Can these valves be used in other industrial applications beyond marine FGD?
A> Certainly. While optimized for scrubbers, their corrosion resistance makes them suitable for chemical processing, wastewater treatment, power plant cooling water, and other demanding industrial services.
Backed by our ISO9001 certification and an annual export value reflecting consistent global trust, Shanghai Zhibang delivers valves that combine performance with reliability. Our presence in major markets across North America, Europe, Asia, and beyond is a testament to the product's quality and our commitment to international clients. Served from strategic ports like Shanghai and Guangzhou, we ensure efficient logistics. Choosing our Corrosion Resistant Marine Butterfly Valve means investing in a component that safeguards your critical systems against degradation, reduces lifecycle costs, and supports continuous operation. Contact us today to discuss your specific requirements and receive a tailored solution.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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