Contact Platform Support
Help CenterGB/T Marine Gate Valve in Cast Iron, Solid Wedge, Bolted Bonnet Construction
Product Spotlights
Related Products
-
Marine Piping System Cast Iron Gate Valve, Full Port Design, GB/T CompliantNegotiableMOQ: 1 Unit -
DN50 to DN300 Marine Cast Iron Flange Gate Valve, Standard Wall ThicknessNegotiableMOQ: 1 Unit
-
CB/T3591 Marine Gate Valve Production for Ship Engine Room Piping SystemsNegotiableMOQ: 1 Unit
-
Marine Gate Valve CB/T3591, Rising Stem, OS&Y Type, Flanged EndsNegotiableMOQ: 1 Unit
-
OEM Factory Producing Marine Gate Valves to CB/T3591 for Bilge and Ballast LinesNegotiableMOQ: 1 Unit
As a specialized manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is dedicated to producing high-quality industrial valves for demanding applications worldwide. Our GB/T Marine Gate Valve in Cast Iron, featuring a solid wedge and bolted bonnet construction, represents a robust and reliable solution specifically engineered for marine and offshore environments. With an annual export value exceeding US$1 million, we have consistently supplied these durable valves to key markets across North America, South America, Europe, Asia, Africa, and Oceania, proving their performance in diverse operational conditions.
This valve is designed to provide secure isolation and flow control in seawater systems, ballast lines, firefighting systems, and general service pipelines on vessels and offshore platforms. Its construction prioritizes longevity and ease of maintenance under the harsh conditions typical of maritime operations.
Core Product Features & Technical Specifications:
- Rugged Construction: The valve body and major components are crafted from cast iron, offering excellent corrosion resistance and mechanical strength suitable for marine applications.
- Solid Wedge Design: The solid, one-piece wedge ensures a tight seal when closed, minimizing leakage and providing reliable shut-off even after prolonged use.
- Bolted Bonnet: This construction allows for secure sealing of the valve interior and facilitates easier maintenance and inspection. The bonnet can be disassembled for internal component access without specialized tools.
- GB/T Standard Compliance: Manufactured according to Chinese GB/T standards, ensuring dimensional compatibility, performance benchmarks, and quality consistency.
- Flanged Ends: Standard flanged connections (as per GB/T) enable straightforward installation into existing piping systems common in shipbuilding.
- Manual Operation: Equipped with a handwheel for straightforward manual operation, suitable for applications where automated control is not required.
- Versatile Application: Engineered for use with seawater, freshwater, oil, and non-aggressive fluids on ships, barges, docks, and offshore installations.
Detailed Technical Parameters (Typical Range):
| Parameter | Value / Range |
| Primary Material | Cast Iron |
| Design Standard | GB/T |
| Pressure Rating (PN) | PN10, PN16 (Common) |
| Size Range (Nominal Diameter) | DN50 to DN600 |
| Temperature Range | -20°C to 120°C |
| Sealing Element | Solid Wedge |
| Bonnet Type | Bolted |
| Operation Type | Manual (Handwheel) |
| End Connection | Flanged |
Key Advantages & Customer Benefits:
- Enhanced Durability: The cast iron body and solid wedge design resist wear and corrosion from seawater, leading to a longer service life and reduced replacement costs.
- Reliable Sealing Performance: The solid wedge provides a consistent and tight seal, crucial for preventing leaks in critical marine systems, enhancing operational safety.
- Maintenance-Friendly Design: The bolted bonnet allows for relatively simple internal inspection, part replacement, or cleaning, reducing downtime and maintenance labor.
- Standard Compliance: Adherence to GB/T standards guarantees predictable dimensions and performance, simplifying procurement and integration for shipyards and repair facilities.
- Cost-Effective Solution: Cast iron construction offers a balance of performance and cost, providing a reliable valve option without the premium price of more exotic materials.
- Global Supply Proven: Our valves are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, supporting efficient logistics for our international clients across the globe.
Backed by our ISO9001 certification for quality management systems, Shanghai Zhibang Valve ensures that every marine gate valve undergoes stringent production and quality control processes. Our established presence since 2016 and successful export history to diverse continents demonstrate our capability to deliver reliable products that meet the specific needs of the marine industry. This valve combines traditional robust construction with modern manufacturing consistency, offering a dependable choice for your piping systems. We encourage you to contact us for detailed specifications, pricing, or to discuss custom requirements for your specific project needs.
Frequently Asked Questions (FAQ):
Q1: What fluids is this marine gate valve suitable for?
A: It is designed primarily for seawater, freshwater, ballast water, and other non-aggressive fluids commonly found in marine systems. It is not recommended for highly corrosive chemicals or steam at very high temperatures.
Q2: Can this valve be used in submerged or permanently underwater applications?
A: While it is designed for marine environments, specific application conditions like permanent submersion should be reviewed. The standard cast iron construction offers good corrosion resistance, but extended underwater service may require additional consideration or optional coatings.
Q3: What is the advantage of a "solid wedge" compared to a "flexible wedge"?
A: A solid wedge is a single, rigid piece. It provides a very robust seal and is less prone to deformation under pressure, making it suitable for applications where a tight, reliable shut-off is critical and where the fluid may contain solids. It may require more operating force than a flexible wedge.
Q4: Is the bolted bonnet design prone to leakage?
A: Properly assembled, the bolted bonnet with its gasket seal is designed to prevent leakage. It is a common and reliable design that also allows for easier maintenance access to the valve internals compared to a welded bonnet.
Q5: Are other material options available, like bronze or stainless steel?
A: As a manufacturer, we offer a range of valve products. While this specific product is in cast iron, other materials for marine gate valves may be available upon request or as part of our broader product catalog. Please inquire for specific material requirements.
Q6: What does "GB/T" standard mean, and will it fit international piping systems?
A: GB/T refers to Chinese National Standards. These standards define dimensions, testing, and performance. Many GB/T flanged dimensions are compatible with common international flange standards (like ANSI/ASME) within certain pressure classes, but verification for specific project compatibility is recommended.
Q7: Can the valve be fitted with an actuator for automated operation?
A: The standard valve is manual. However, the design can often be adapted to accommodate an actuator (electric, pneumatic) for automated control. This would typically be a customization option.
Q8: What is the typical lead time for orders of this valve?
A: Lead times depend on order quantity, specific size, and current production schedule. As an established manufacturer with efficient logistics from multiple Chinese ports, we aim to provide competitive lead times. Please contact us for an accurate estimate based on your requirements.
Send Inquiry to This Supplier
You May Also Like
-
OEM Marine Gate Valve Manufacturer for CB/T3591 Gate Valves, A216 WCB MaterialNegotiableMOQ: 1 Unit
-
Marine Gate Valve CB/T3591 Compliant, PN16 Pressure Rating, Full Bore DesignNegotiableMOQ: 1 Unit
-
Durable Marine Cast Iron Gate Valve With 12-Month Warranty Against DefectsNegotiableMOQ: 1 Unit
-
OEM Production of CB/T3591 Marine Gate Valves With Technical Support and Spare PartsNegotiableMOQ: 1 Unit
-
DN300 Large Diameter Gate Valve Compliant With CB/T3591 Standard for Marine ApplicationsNegotiableMOQ: 1 Unit
-
Marine Gate Valve Manufacturer Offering CB/T3591 Valves With Mill Test ReportNegotiableMOQ: 1 Unit
-
CB/T3591 Standard Marine Gate Valve OEM Factory With Cast Steel Body and Stainless Steel TrimNegotiableMOQ: 1 Unit
-
CB/T3591 DN300 Gate Valve With Handwheel Actuation and Standard Compliant DesignNegotiableMOQ: 1 Unit
-
CB/T3591 Large Diameter Gate Valve for DN300 Shipboard Freshwater and Ballast SystemsNegotiableMOQ: 1 Unit
-
CB/T3591 Standard Gate Valve DN300 PN1.6MPa for Ship Freshwater Pipeline SystemsNegotiableMOQ: 1 Unit
