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Home > Industrial Equipment & Components > Valve > Gate Valve > Marine Gate Valve For Exhaust Gas Desulfurization, 2205 Duplex Steel, 1.6MPa, Flanged Conn, Full Bore
Marine Gate Valve For Exhaust Gas Desulfurization, 2205 Duplex Steel, 1.6MPa, Flanged Conn, Full Bore
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Engineered for harsh marine EGD systems, this gate valve features corrosion-resistant 2205 Duplex Steel construction, a full bore design for minimal pressure drop, and a 1.6MPa pressure rating with flanged connections. It ensures reliable isolation, reduces maintenance, and extends service life in aggressive scrubber environments, backed by ISO9001 manufacturing and global export experience.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, 2205 Duplex Stainless Steel
Application:
Other, Exhaust Gas Desulfurization (EGD) Systems
Pressure Rating:
1.6 MPa (PN16)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, 2205 Duplex Stainless Steel
Application
Other, Exhaust Gas Desulfurization (EGD) Systems
Pressure Rating
1.6 MPa (PN16)
Connection Type
Flanged
Bore Design
Full Bore
Operation Type
Manual (Standard), Gear or Actuator Optional
Temperature Range
Up to 250°C (482°F)
Certification
Manufactured under ISO9001 Quality System
Valve Type
Gate Valve
End Connection Standard
ASME B16.5, DIN, JIS, GB standards available
As a professional manufacturer with ISO9001 certification established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for demanding industrial applications. Our Marine Gate Valve for Exhaust Gas Desulfurization (EGD) is engineered to meet the rigorous challenges of marine and power generation environments. Constructed from premium 2205 Duplex Steel and rated for 1.6MPa with Flanged Connections and a Full Bore design, this valve delivers exceptional corrosion resistance, high strength, and minimal flow restriction, ensuring reliable isolation and control in critical exhaust gas cleaning systems.
This valve is designed to handle the aggressive, corrosive media often present in scrubber systems, including seawater, alkaline slurries, and acidic by-products. Its robust construction ensures long-term performance and safety, reducing maintenance frequency and total cost of ownership for ship operators and power plants.
Key Features & Technical Advantages:
- Superior Material: The valve body, bonnet, gate, and stem are crafted from UNS S32205/S31803 (2205 Duplex) stainless steel. This material offers an excellent balance of high strength and outstanding resistance to chloride stress corrosion cracking, pitting, and crevice corrosion, which are common failure modes in marine and EGD applications.
- Full Bore Design: Provides a flow path with an internal diameter equal to the connecting pipeline. This minimizes pressure drop, prevents slurry buildup, and allows for easy passage of cleaning pigs or inspection tools, which is crucial for maintaining system efficiency.
- Robust Pressure Rating: With a 1.6 MPa (PN16) pressure rating, the valve is built to withstand the operational pressures encountered in exhaust gas scrubber loops and associated piping.
- Reliable Flanged Connection: Standard flanged ends ensure a secure, leak-proof connection to the pipeline. We offer various flange standards (ASME B16.5, DIN, JIS, GB) to match global project specifications, facilitating easy installation and replacement.
- Enhanced Sealing & Operation: Features a flexible wedge or parallel slide gate design (depending on model) for tight shut-off. The stem is designed with anti-blowout features, and packing gland adjustments are accessible for maintenance. Options include handwheel operation, gear operators for high-torque applications, or pneumatic/electric actuators for remote control.
- Designed for Harsh Service: The entire design considers the wet, salty, and chemically active environment of marine EGD systems, with extended bonnets available for high-temperature applications or to protect the stem packing from direct media contact.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Valve Type | Marine Gate Valve |
| Primary Material | 2205 Duplex Stainless Steel (Body, Bonnet, Gate, Stem) |
| Pressure Class | PN16 / 1.6 MPa / 232 PSI |
| Connection Type | Flanged (RF Face Standard) |
| Bore Type | Full Port (Full Bore) |
| Temperature Range | -20°C to 250°C (-4°F to 482°F) |
| Operation | Manual Handwheel (Standard), Gear Operator or Actuator (Optional) |
| Seat & Seal | Metal-to-Metal or Resilient Seated (Optional) |
| Applicable Standards | ISO, API, ASME, DIN, GB. Design can be customized. |
| Size Range | DN50 to DN600 (2" to 24") commonly available. Other sizes upon request. |
Benefits for Your Operation:
- Extended Service Life: The superior corrosion resistance of 2205 Duplex steel significantly reduces failure rates compared to standard 316L stainless steel, leading to longer intervals between replacements.
- Reduced Maintenance & Downtime: The robust design and high-quality materials minimize leakage and operational issues, keeping your EGD system online and reducing unplanned maintenance.
- Optimized System Performance: The full bore design maintains flow efficiency, preventing pressure drops that can affect scrubber performance and increase pump energy consumption.
- Global Compliance & Compatibility: Manufactured under an ISO9001 quality management system, our valves are designed to meet international marine and industrial standards, ensuring they are suitable for global projects.
- Flexible Configuration: We offer a range of options including different flange standards, operator types, and sealing solutions to tailor the valve to your specific system layout and control requirements.
With an annual export value ranging between US$1 Million and US$1.5 Million, Shanghai Zhibang Valve has established a strong reputation for quality and reliability across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics to your project site. Choosing our Marine Gate Valve means investing in a component built for durability and performance in the world's most challenging environments. Contact us today to discuss your specifications and experience the Zhibang advantage in corrosion-resistant valve technology.
Frequently Asked Questions (FAQ):
-
Q: Why is 2205 Duplex Steel specifically recommended for Exhaust Gas Desulfurization valves?
A: EGD scrubber environments expose valves to a combination of chlorides (from seawater), acids, alkalis, and high temperatures. 2205 Duplex steel offers roughly twice the yield strength of 316L stainless steel and far superior resistance to stress corrosion cracking and pitting in chloride-rich environments, making it a more reliable and durable choice. -
Q: Can this valve be used with other media besides scrubber slurry?
A: Absolutely. While optimized for EGD service, its material and construction make it suitable for a wide range of other aggressive industrial fluids, including seawater cooling lines, chemical process streams, and offshore oil & gas applications involving corrosive media. -
Q: What are the available flange standards and pressure ratings?
A: We commonly supply valves with ASME B16.5 Class 150, DIN PN16, JIS 10K, or GB standards. The standard pressure rating is 1.6MPa (PN16), but valves for higher pressure classes (e.g., PN25, PN40) can be manufactured upon request. -
Q: Is the valve suitable for both normally open and normally closed service?
A: Yes, gate valves are typically used for isolation and are suitable for either service. The choice between manual, geared, or actuated operation depends on the frequency of use and the need for remote/automated control within your system. -
Q: Do you offer actuated versions of this gate valve?
A: Yes. We can equip the valve with pneumatic (on/off or modulating) or electric actuators. Please provide your required torque, control signal (e.g., 4-20mA, on/off), and fail-safe mode requirements for a precise quotation. -
Q: What is the typical delivery lead time for an order?
A: Lead time depends on the order quantity and valve specifications. For standard sizes and configurations, we generally aim for delivery within 4-8 weeks. Expedited production may be available for urgent projects. -
Q: How does the full bore design benefit an EGD system compared to a standard port valve?
A: In slurry service, a full bore valve prevents the accumulation of solids at the valve throat, which can lead to clogging, increased erosion, and difficult operation. It also results in a lower permanent pressure loss, improving overall system hydraulic efficiency. -
Q: What kind of testing and documentation do you provide with the valves?
A> Each valve undergoes hydrostatic shell and seat tests per API 598 or equivalent standards. We provide a Mill Test Certificate (MTC) for the 2205 Duplex material, a pressure test report, and a detailed dimensional drawing. Full certification packages are available upon request.
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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