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Corrosion Resistant Marine Gate Valve, 304/316L Stainless Steel, GB/T Compliant
Product Spotlights
Engineered for harsh marine duty, this gate valve uses 304/316L stainless steel for superior corrosion resistance against seawater. GB/T compliant design ensures reliable, bubble-tight shut-off in ballast, cooling, and fuel systems. Available in sizes DN15-DN300 with flanged or threaded connections, it offers extended service life, low maintenance, and customizable options for global marine applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, 304/316L Stainless Steel
Application:
Other, Marine and Offshore Environments
Valve Type:
Gate Valve
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, 304/316L Stainless Steel
Application
Other, Marine and Offshore Environments
Valve Type
Gate Valve
Corrosion Resistance
High resistance to saltwater and harsh chemicals
Compliance Standard
GB/T Compliant
Connection Type
Flanged (optional threaded)
Pressure Rating
Customizable (PN10, PN16, PN25 typical)
Size Range
DN15 to DN300 (1/2“ to 12“)
Operation
Handwheel operated (gearbox optional)
Seat Design
Resilient or metal seated options available
As a leading manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering high-performance fluid control solutions for demanding global markets. Our Corrosion Resistant Marine Gate Valve, crafted from premium 304/316L stainless steel and engineered to GB/T standards, represents our commitment to reliability in the harshest marine and offshore environments. With an annual export value reaching US$1-1.5 million and a presence across North America, South America, Europe, Asia, Africa, and Oceania, we understand the critical need for valves that withstand saltwater corrosion, extreme pressures, and prolonged operational cycles without failure. This valve is designed not just to meet specifications, but to exceed the expectations of shipbuilders, port operators, and offshore platform engineers worldwide.
Product Features and Technical Advantages:
- Superior Material Construction: Manufactured from 304 or 316L stainless steel, selected for its excellent corrosion resistance against seawater, chlorides, and various chemicals prevalent in marine applications. The 316L variant offers enhanced molybdenum content for superior performance in highly corrosive conditions.
- Robust Gate Valve Design: Features a rising stem and non-rising handwheel design for clear visual indication of valve position (open/closed). The gate mechanism provides a tight, bubble-tight shut-off when fully closed, minimizing leakage risks in critical piping systems.
- Engineered for Marine Compliance: Designed and tested to comply with relevant GB/T (Chinese National Standard) specifications, ensuring dimensional accuracy, pressure integrity, and material properties suitable for marine classification society requirements (available upon request).
- Versatile Connection and Pressure Options: Available with flanged ends (RF, FF) or threaded connections (NPT, BSP) to suit international piping standards. Pressure ratings can be customized to PN10, PN16, PN25, or Class 150/300 based on your system requirements.
- Optimized Flow Characteristics: Full-bore design minimizes pressure drop across the valve when fully open, ensuring efficient fluid transfer of seawater, ballast, fuel, lubricants, or other shipboard media.
- Durable Sealing Solutions: Offers a choice between resilient seats (for bubble-tight shut-off with lower operating torque) or metal-to-metal seats (for high-temperature or abrasive service). Stem packing is designed for extended service life and easy maintenance.
- Enhanced Operational Safety: The handwheel is ergonomically designed for smooth operation, even under high differential pressure. Optional gearbox operators are available for larger sizes (DN200+) to reduce required operating torque.
Key Technical Specifications:
| Parameter | Specification / Option |
| Body & Trim Material | 304 Stainless Steel / 316L Stainless Steel |
| Size Range (Nominal Diameter) | DN15 (1/2") to DN300 (12") |
| Pressure Rating (Standard) | PN16 (16 bar) / Class 150 |
| Temperature Range | -20°C to 200°C (dependent on seat material) |
| End Connection | Flanged (RF, FF), Threaded (NPT, BSP) |
| Operation Mode | Handwheel (Standard), Gear Operator (Optional for DN200+) |
| Seat Type | Resilient (Standard), Metal Seated (Optional) |
| Design Standard | GB/T Compliant (Specific standards available upon request) |
Benefits for Your Operations:
- Extended Service Life & Reduced Maintenance: The corrosion-resistant stainless steel construction drastically reduces failure rates due to rust and pitting, leading to lower lifetime costs and less frequent replacement cycles.
- System Reliability: Provides dependable on/off control for critical shipboard systems including bilge, ballast, firefighting, cooling water, and fuel lines, contributing to overall vessel safety and operational continuity.
- Global Supply Chain Compatibility: Manufactured in our ISO9001-certified facility in Shanghai and shipped from major ports (Shanghai, Guangzhou, Hong Kong, Beijing), we ensure timely delivery and consistent quality for projects across the globe.
- Customization Flexibility: We understand that marine projects have unique needs. Modifications in size, pressure rating, material grade (304 vs 316L), end connections, and actuation methods can be discussed to achieve a perfect fit for your application.
Shanghai Zhibang Valve backs its products with a proven track record of supplying to diverse and demanding markets worldwide. Our ISO9001 certification underpins a rigorous quality management system that governs every stage of production, from raw material sourcing to final testing. With exports reaching US$1-1.5 million annually and serving clients in North America, South America, Europe, Asia, Africa, and Oceania, our valves have been validated in a multitude of marine environments. Choosing our Corrosion Resistant Marine Gate Valve means partnering with a manufacturer dedicated to precision engineering, material integrity, and delivering valves that perform under pressure. Contact us today to discuss your project specifications or request a detailed quotation.
Frequently Asked Questions (FAQ):
-
What is the main difference between 304 and 316L stainless steel for this marine valve?
304 stainless steel offers good general corrosion resistance and is cost-effective for many marine applications. 316L stainless steel contains molybdenum, which provides significantly enhanced resistance to pitting and crevice corrosion in chloride-rich environments like seawater, making it the preferred choice for more aggressive conditions or where extended service life is critical. -
Is this valve suitable for both above-deck and below-deck applications on ships?
Yes. Its corrosion-resistant construction makes it suitable for both environments. However, for exposed above-deck applications subject to direct salt spray and UV exposure, specifying 316L material is often recommended for maximum durability. -
Can you provide valves with specific certifications for marine classification societies (e.g., ABS, DNV, LR)?
Our valves are manufactured to GB/T standards which form a robust technical basis. We can support the certification process with various classification societies. Please inquire with your specific certification requirements, and our engineering team can provide the necessary documentation and coordinate testing as needed. -
What is the typical lead time for standard sizes of this valve?
For standard sizes (DN15-DN150) and standard specifications, lead times are generally competitive. Exact lead times depend on current order volume and specific configuration. We maintain strategic inventory for common items to expedite delivery, especially through our major export ports. -
Do you offer actuated versions (electric, pneumatic) of this gate valve?
Yes. While the standard configuration is handwheel-operated, we can interface with a variety of electric or pneumatic actuators to enable remote or automated operation. We can supply the complete package (valve + actuator) or provide the valve prepared for actuator mounting. -
How does the "GB/T Compliant" designation benefit international buyers?
GB/T is China's national standard system, known for its stringent technical requirements. Compliance ensures the valve meets defined benchmarks for dimensions, pressure-temperature ratings, material chemistry, and performance testing. This provides a clear, verifiable quality baseline that facilitates integration into international projects. -
What maintenance is required for these valves?
These valves are designed for low maintenance. Periodic visual inspection for external corrosion and operational checks are recommended. The stem packing may occasionally require adjustment. For metal-seated versions, occasional lapping of the gate and seat faces may be needed after prolonged use if leakage occurs. -
Can you provide customized painting or coating for additional corrosion protection?
Absolutely. While the stainless steel body provides inherent protection, we can apply additional epoxy coatings or specific marine-grade paint systems upon request for an extra layer of defense or for color-coding purposes within your piping system.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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