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Help CenterDN50-DN600 Marine Wedge Gate Valve Single Disc, PN10-PN40 Pressure Rating
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd brings you high-performance marine wedge gate valves designed for demanding marine applications. Our DN50-DN600 single disc gate valves with PN10-PN40 pressure ratings represent our commitment to quality and reliability in fluid control systems. With annual export values ranging from US$1 million to US$1.5 million, we have built a strong reputation across global markets including North America, Southeast Asia, Europe, and beyond.
These marine gate valves are engineered to provide superior sealing performance and long service life in corrosive marine environments. The single disc wedge design ensures tight shut-off and minimal maintenance requirements, making them ideal for shipbuilding, offshore platforms, and port facilities. Our manufacturing process adheres to strict quality standards, ensuring every valve meets the rigorous demands of marine service.
Key Technical Specifications:
| Parameter | Specification |
| Size Range | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Pressure Classes | PN10, PN16, PN25, PN40 |
| Temperature Range | -20°C to 400°C |
| Body Materials | Cast Steel WCB, Ductile Iron, Stainless Steel CF8 |
| Trim Materials | Stainless Steel 13% Cr, Bronze, Monel |
| End Connection | Flanged RF, FF, RTJ |
Product Advantages and Benefits:
- Robust Construction: Designed to withstand harsh marine conditions including saltwater exposure, vibration, and pressure fluctuations
- Excellent Sealing: The wedge disc design provides bubble-tight shut-off even after prolonged periods of inactivity
- Low Maintenance: Simple design with minimal moving parts reduces maintenance requirements and downtime
- Corrosion Resistance: Available with various material combinations to combat marine corrosion effectively
- Easy Operation: Smooth operation with manual handwheel or gear operator options for larger sizes
- Versatile Applications: Suitable for seawater systems, ballast systems, firefighting systems, and cargo handling
Design Features:
- Solid wedge disc design for reliable sealing performance
- Rising stem with indicator for clear valve position
- Bolted gland packing for easy maintenance and adjustment
- Anti-blowing stem design for enhanced safety
- Full bore design minimizing pressure drop
- Standard face-to-face dimensions for easy replacement
Backed by our ISO9001 certified manufacturing facility and extensive export experience spanning multiple continents, Shanghai Zhibang guarantees valves that meet international quality standards. Our strategic location with multiple shipment ports including Shanghai, Guangzhou, Hong Kong, and Beijing ensures timely delivery to customers worldwide. With products successfully serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we have proven our capability to meet diverse marine industry requirements.
The reliability of our marine wedge gate valves has been demonstrated through years of successful operation in various marine applications. Our commitment to continuous improvement and customer satisfaction makes us a trusted partner for your valve needs. Contact us today to discuss how our DN50-DN600 marine wedge gate valves can enhance the performance and reliability of your fluid control systems.
Frequently Asked Questions:
Q: What is the main advantage of a single disc wedge gate valve compared to other valve types?
A: Single disc wedge gate valves offer excellent sealing capabilities with simple construction, making them reliable for on/off service in marine applications where tight shut-off is critical.
Q: Can these valves be used for throttling applications?
A: Gate valves are primarily designed for isolation service rather than flow control. Using them for throttling may cause vibration, cavitation, and premature wear of the seating surfaces.
Q: What materials are recommended for seawater service?
A: For seawater applications, we recommend cast steel body with stainless steel trim or bronze trim for improved corrosion resistance. Special coatings can also be applied upon request.
Q: Are these valves suitable for high-temperature applications?
A: Yes, our marine wedge gate valves can handle temperatures up to 400°C, depending on the material selection. Higher temperature ratings may require special material combinations.
Q: What operating mechanisms are available?
A: We offer manual operation with handwheel for smaller sizes and gear operators for larger sizes (typically DN300 and above). Electric or pneumatic actuators can be supplied as optional accessories.
Q: How do I determine the correct pressure rating for my application?
A: The pressure rating should be selected based on your system's maximum working pressure, including any pressure surges. We recommend choosing a valve with a pressure rating at least equal to your system design pressure.
Q: What certifications do your valves carry?
A: Our manufacturing facility is ISO9001 certified. Valves can be manufactured to meet various international standards including ISO, DIN, BS, and ANSI specifications.
Q: What is the typical delivery time for custom orders?
A: Standard sizes are typically available within 15-30 days. Custom configurations or large quantities may require 4-8 weeks, depending on specifications and order volume.
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