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Help CenterDN50-DN300 Marine Plug Valve Compliant With CB/T4159-2001 Standard
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As a professional valve manufacturer since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance marine plug valves that meet the rigorous demands of offshore and shipboard applications. Our DN50-DN300 Marine Plug Valve, engineered in strict compliance with the CB/T4159-2001 standard, delivers exceptional reliability in critical fluid control systems. With over $1 million in annual exports to global maritime markets, we've refined our manufacturing processes to ensure valves withstand corrosive marine environments while maintaining precise sealing integrity.
This valve features a robust construction designed specifically for:
- Seawater handling systems
- Ballast water management
- Fuel oil transfer lines
- Bilge and firefighting systems
Technical specifications include:
| Feature | Detail |
| Pressure Rating | PN10-PN40 (customizable) |
| Temperature Range | -29°C to 200°C |
| Sealing System | Teflon®-encapsulated plug |
| Test Standards | API 598 / EN 12266 |
Key operational advantages:
- Quarter-turn operation enables rapid shutoff in emergency scenarios
- Maintenance-free design with self-lubricating seals reduces lifecycle costs
- Bi-directional sealing capability ensures leak-tight performance in both flow directions
- Fire-safe design available upon request for fuel applications
With ISO9001 certified manufacturing processes and shipments dispatched from major Chinese ports including Shanghai and Hong Kong, we deliver consistent quality to clients across five continents. Our valves undergo rigorous quality verification including:
- Hydrostatic shell tests at 1.5x working pressure
- Seat leakage tests per API 598 standards
- Material composition verification
- Operational torque verification
Frequently Asked Questions:
-
Q: What documentation accompanies these valves?
A: We provide material test reports, inspection certificates, and compliance statements with each shipment. -
Q: Can this valve handle abrasive media?
A: Optional hardened coatings are available for slurry applications. -
Q: Are different face-to-face dimensions available?
A: Standard dimensions follow CB/T4159-2001, but customizations can be discussed. -
Q: What maintenance is required?
A: Our lubrication-packed design typically requires no routine maintenance. -
Q: How do I select between lever and gear operation?
A: Gear operation is recommended for DN200+ sizes or high-pressure applications. -
Q: What is the lead time for DN300 valves?
A: Standard sizes ship in 4-6 weeks; expedited production available.
Trusted by marine engineers from North America to Southeast Asia, our valves have demonstrated reliability in over 150 vessel installations. Contact our Shanghai headquarters today for project-specific quotations or technical consultations.
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