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Help CenterGB/T Standard Marine Gate Valve for Fuel Oil Systems, DN80-DN150
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As a dedicated manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and durable fluid control solutions for the global maritime industry. Our GB/T Standard Marine Gate Valve for Fuel Oil Systems is engineered to meet the rigorous demands of shipboard fuel oil service, ensuring safe, leak-tight isolation and flow control. With nominal diameters from DN80 to DN150, this valve is a critical component for bunkering lines, transfer systems, and service lines onboard various vessels. We understand that downtime at sea is not an option, which is why our valves are built for longevity and dependable performance under challenging marine conditions.
The design and construction of this marine gate valve prioritize safety, ease of operation, and minimal maintenance. Key features and specifications include:
- Robust Construction: The valve body is typically manufactured from high-grade cast steel (WCB) or ductile iron, offering excellent strength and corrosion resistance suitable for marine environments.
- Superior Sealing: Features a wedge disc design, often with stainless steel (13% Cr or Stellite) trim, providing a bubble-tight seal in both fully open and fully closed positions, essential for fuel oil containment.
- Flexible Operation: Available in handwheel operation for easier manual control or equipped with a gearbox for high-torque applications on larger sizes (e.g., DN125, DN150), reducing operator effort.
- Standard Compliance: Manufactured in strict accordance with Chinese National Standard GB/T, ensuring dimensional interchangeability and performance reliability that meets common marine system requirements.
- Rising Stem Design: The outside screw and yoke (OS&Y) design provides a visual indication of the valve position (open or closed), a crucial safety feature.
- Flanged Ends: Standard flanged ends as per GB/T, JIS, or other standards upon request, facilitate secure and straightforward installation into existing piping systems.
The technical specifications for common models are summarized below:
| Parameter | Specification / Value |
|---|---|
| Nominal Diameter (DN) | 80, 100, 125, 150 |
| Nominal Pressure (PN) | PN16, PN25 (Class 150, Class 300 optional) |
| Design & Test Standards | GB/T 12234, GB/T 13927 |
| Flange Standard | GB/T 9113 (Other standards like ANSI, JIS available) |
| Body Material (Typical) | Carbon Steel (WCB), Ductile Iron (QT450-10) |
| Stem Material | Stainless Steel (2Cr13 or equivalent) |
| Seat/Disc Material | 13% Chrome Steel or Hard-faced (Stellite) |
| Temperature Range | -20°C to 425°C (depending on material grade) |
| Operation | Handwheel (DN80-DN100), Gear Operated (DN125-DN150 recommended) |
Choosing our marine gate valve brings tangible benefits to ship owners, operators, and shipyards. The valve's low-pressure drop when fully open optimizes fuel transfer efficiency. Its robust sealing minimizes the risk of fuel leakage, protecting the environment and ensuring operational safety. The standardized dimensions and readily available spare parts simplify maintenance and reduce lifecycle costs. Furthermore, the durable materials resist corrosion from fuel oils and marine atmospheres, extending service intervals and enhancing the vessel's operational readiness.
Backed by our ISO9001 certification and nearly a decade of manufacturing expertise since 2016, Shanghai Zhibang Valve stands as a reliable partner. Our products have gained trust in diverse markets across North America, South America, Europe, Asia, Africa, and Oceania, supported by an annual export value reflecting consistent quality and service. We offer flexible shipment options from major Chinese ports like Shanghai, Guangzhou, and Hong Kong. For your next marine project requiring dependable fuel oil system valves, consider our GB/T standard gate valves—a combination of proven performance, competitive value, and manufacturer-direct support. Contact us today for detailed quotations, technical data sheets, or to discuss custom requirements.
Frequently Asked Questions (FAQ)
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Q: Is this valve suitable for heavy fuel oil (HFO) service?
A: Yes, it is designed for fuel oil systems, including marine diesel oil (MDO) and heavy fuel oil (HFO). The material selection, particularly for trim parts, is made to withstand the properties of these fuels. -
Q: Can you provide valves with flanges matching ANSI B16.5 or JIS standards?
A: Absolutely. While standard production is to GB/T, we regularly manufacture valves with ANSI, JIS, DIN, or other international flange standards upon request to suit your specific piping system. -
Q: What is the lead time for an order of DN100 valves?
A: Lead time varies based on order quantity and specific requirements. For standard specifications, typical production time is 30-45 days. We recommend contacting our sales team for an accurate schedule based on your project timeline. -
Q: Do you offer any other types of valves for marine applications?
A: Yes, as a manufacturer, our portfolio includes globe valves, check valves, butterfly valves, and ball valves suitable for various marine services such as sea water, ballast, and compressed air systems. -
Q: How does the gear operator benefit the valve function?
A: A gear operator provides a mechanical advantage, significantly reducing the force required to open or close the valve, especially for larger sizes (DN125, DN150) or higher pressure classes. This makes operation safer and easier for personnel. -
Q: Are spare parts like gland packings and gaskets readily available?
A: Yes. We maintain an inventory of common spare parts and can supply them separately. Using genuine spare parts ensures optimal performance and maintains the valve's warranty. -
Q: What quality control tests are performed on these valves?
A: Each valve undergoes rigorous testing, including shell strength test and seat leakage test as per GB/T 13927 or equivalent standards. Our ISO9001 system ensures consistent quality throughout the manufacturing process. -
Q: Can the valve be painted to specific color requirements?
A: Yes, surface preparation and painting can be customized. Standard finish is primer, but we can apply specific marine-grade paint colors or systems as specified by the customer.
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