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Home > Industrial Equipment & Components > Valve > Other Valves & Parts > Desulfurization Tower Butterfly Valve With Duplex Stainless Steel Construction for Marine Exhaust Systems

Desulfurization Tower Butterfly Valve With Duplex Stainless Steel Construction for Marine Exhaust Systems

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Product Spotlights

Specifically engineered for marine exhaust desulfurization systems, this butterfly valve features duplex stainless steel construction for superior corrosion resistance against chlorides and acidic media. It offers reliable flow control in harsh environments, with flexible actuation options (manual, pneumatic, electric) and durable sealing (PTFE or metal seat). Customizable in size and connection standards, it ensures long service life, reduced maintenance, and supports compliance with environmental regulations for vessels.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Duplex Stainless Steel (2205/2507)

Type:

Butterfly Valve

Application:

Marine Exhaust Gas Desulfurization Systems

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Material Duplex Stainless Steel (2205/2507)

Type Butterfly Valve

Application Marine Exhaust Gas Desulfurization Systems

Connection Type Flanged (Standard)

Operation Manual, Pneumatic, or Electric Actuation

Size Range DN50 to DN600 (Customizable)

Pressure Rating PN10 to PN16 (Standard)

Temperature Range -20°C to 250°C

Sealing PTFE or Metal Seat (Optional)

Design Standard ISO, DIN, ANSI (Available upon request)

As a leading manufacturer specializing in industrial valves, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance Desulfurization Tower Butterfly Valve. Engineered specifically for the demanding environments of marine exhaust systems, this valve is constructed from premium duplex stainless steel to offer exceptional corrosion resistance, durability, and reliable sealing. Our expertise since 2016 ensures this product meets the rigorous requirements of ship exhaust gas treatment, providing a critical component for effective sulfur oxide (SOx) removal and compliance with environmental regulations.

The core value of this valve lies in its ability to maintain stable operation within harsh marine exhaust streams, characterized by high temperatures, corrosive gases, and particulate matter. It serves as a vital control element in scrubber towers or desulfurization units, ensuring precise flow regulation for the treatment process. By choosing our valve, you secure a component built for longevity and performance, directly contributing to operational efficiency and environmental stewardship for vessels.

Detailed Product Features & Technical Specifications:

Robust Duplex Stainless Steel Construction: The valve body, disc, and stem are made from duplex stainless steel (grades like 2205 or 2507). This material combines high strength with superior resistance to pitting and crevice corrosion, especially against chlorides and acidic environments present in marine exhaust and scrubber solutions.
Optimized for Desulfurization Applications: The design considers the specific media: exhaust gases containing SOx, possibly mixed with seawater or alkaline scrubbing solutions. The sealing system and material selection prevent leakage and withstand chemical attack.
Flexible Actuation Options: To suit various control system requirements on ships, the valve can be equipped with:
- Manual Operation: Gearbox or lever for direct manual control.
- Pneumatic Actuator: For automated control via air pressure, suitable for many marine control systems.
- Electric Actuator: For integration with electronic monitoring and control networks.
Precision Sealing Performance: Depending on the temperature and media, the seat can be PTFE for excellent sealing at moderate temperatures or a metal seat (e.g., stainless steel) for higher temperature resilience. This ensures minimal leakage and reliable shut-off.
Durable Stem & Disc Assembly: The disc is securely mounted on a robust stem, designed to handle torque and prevent deformation under pressure. The assembly ensures smooth rotation and accurate flow modulation.
Flanged Connection Standard: Typically supplied with flanged ends (e.g., DIN, ANSI, JIS standards) for straightforward integration into existing pipework of exhaust systems. Other connection types are customizable.

Key Technical Parameters:

Parameter	Typical Specification / Range
Nominal Diameter (DN)	DN50, DN80, DN100, DN150, DN200, DN250, DN300, DN400, DN500, DN600 (Custom sizes available)
Pressure Rating (PN)	PN10, PN16 (Higher ratings upon request)
Operating Temperature	-20°C to 250°C (Depends on seat material)
Body & Disc Material	Duplex Stainless Steel (2205/2507)
Seat Material	PTFE (Standard), Metal Seat (Optional for high temp)
Actuation Type	Manual, Pneumatic, Electric (Selectable)
Connection Standard	Flanged per ISO, DIN, ANSI, JIS (Specify requirement)

Advantages & Client Benefits:

Enhanced Corrosion Resistance: Duplex steel significantly outperforms standard stainless steels in chloride-rich marine environments, extending valve service life and reducing maintenance frequency.
Reliable Process Control: Ensures accurate and stable control of exhaust gas or scrubbing liquid flow within the desulfurization tower, optimizing the SOx removal efficiency.
High Durability & Strength: The high strength of duplex steel withstands mechanical stress and thermal cycling, preventing failures in critical exhaust systems.
Reduced Operational Risk: A reliable valve minimizes the risk of leakage or malfunction in the exhaust treatment system, contributing to overall ship safety and environmental compliance.
Customization Availability: We can tailor size, actuation, connection, and sealing options to match your specific system layout and operational protocol.
Cost-Effectiveness: While offering premium performance, our valves provide a favorable lifecycle cost due to durability and reduced downtime.

Shanghai Zhibang Valve Manufacture Co., Ltd. operates under a certified ISO9001 quality management system, ensuring consistent product quality and reliable manufacturing processes. With an annual export value ranging between US$1 Million and US$1.5 Million, we have established a strong global footprint, supplying to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports like Shanghai, Guangzhou, Hongkong, and Beijing, facilitating smooth logistics. Our eight years of manufacturing experience since 2016 translates into deep technical knowledge and dependable production capabilities for marine-grade valves. This Desulfurization Tower Butterfly Valve embodies our commitment to providing robust, application-specific solutions that help our clients meet stringent maritime emission standards. Contact us today to discuss your requirements and experience the reliability of a valve engineered for performance in the heart of marine exhaust systems.

Frequently Asked Questions (FAQ):

Q: Why is duplex stainless steel specifically chosen for this marine exhaust valve?
A: Duplex stainless steel offers a superior combination of high strength and exceptional corrosion resistance, particularly against chloride-induced pitting and crevice corrosion. Marine exhaust environments often contain chlorides from seawater spray or scrubber solutions, making duplex steel a highly suitable material for long-term durability.
Q: Can this butterfly valve handle the high temperatures typically found in ship exhaust streams?
A: Yes, the standard design accommodates temperatures up to 250°C. For specific high-temperature applications, we can offer optional metal seat configurations to ensure sealing performance at elevated temperatures.
Q: What actuation methods are most common for marine applications?
A: Pneumatic actuation is frequently used due to its compatibility with many ship control systems. Manual and electric actuation are also popular choices depending on the level of automation and control integration desired.
Q: How do I ensure the valve fits my existing piping system?
A: We provide valves with flanged connections conforming to various international standards (ISO, DIN, ANSI, JIS). Please specify your required flange standard and nominal diameter during inquiry. Non-standard connections can be customized.
Q: Is this valve suitable for controlling both exhaust gas and the scrubbing liquid (e.g., seawater) in a scrubber system?
A: Yes, the material and design are engineered to handle both the exhaust gas stream and the often corrosive scrubbing media (seawater or alkaline solutions) encountered in exhaust gas cleaning systems.
Q: What is the typical delivery time for a custom-sized valve?
A: Standard sizes are often available from stock or have shorter lead times. For custom specifications (size, actuation, standard), production time typically ranges from 4 to 8 weeks, depending on complexity. We provide accurate timelines upon order confirmation.
Q: Does the valve come with any certifications relevant for marine use?
A: Our manufacturing is certified under ISO9001 for quality management. For specific marine industry certifications (e.g., from classification societies), please inquire as they can be arranged based on project requirements.
Q: What maintenance is recommended for this valve in service?
A: Due to its corrosion-resistant construction, routine maintenance is minimal. Periodic inspection of the sealing surface and actuation mechanism is advised. The robust design generally requires less frequent intervention compared to valves made from standard materials.