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Help CenterGB/T587-2008 Marine Bronze Flanged Stop Valve DN50 PN16 for Shipbuilding
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As a specialized manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. delivers precision-engineered Marine Bronze Flanged Stop Valves designed for demanding shipbuilding applications. Established in 2016, our valves combine naval architecture standards with robust construction to ensure reliable flow control in critical marine systems.
Engineered to GB/T587-2008 specifications, this DN50 PN16 valve features:
- High-grade marine bronze construction for superior saltwater corrosion resistance
- Flanged connections compatible with standard pipeline systems
- Bi-directional sealing capability for versatile installation
- Non-rising stem design optimized for confined engine room spaces
Technical specifications include:
| Parameter | Value |
| Nominal Diameter | DN50 (2") |
| Pressure Class | PN16 |
| Body Material | Casting Bronze (CuZn40Pb2) |
| Seat Material | Bronze + PTFE |
| Test Pressure | 24 bar (Hydrostatic) |
Our valves undergo triple quality verification:
- Material composition analysis using spectrometry
- Full-pressure cycle testing at 1.5x working pressure
- Salt spray corrosion testing exceeding 500 hours
With annual exports valued at $1-1.5 million to global maritime markets, our valves are trusted by shipyards across 5 continents. Shanghai-based manufacturing ensures rapid delivery through major ports including Shanghai, Guangzhou, and Hong Kong.
FAQ Section
Q: Why use bronze instead of stainless steel?
A: Bronze offers superior dezincification resistance in seawater environments while maintaining cost efficiency.
Q: Are these valves suitable for freshwater systems?
A: Absolutely - they perform equally well in both freshwater and marine applications.
Q: What flange standards are compatible?
A: Designed for ANSI B16.5 Class 150 or equivalent DIN/BS flanges.
Q: Do you provide certification documentation?
A: All valves ship with material certificates and ISO9001 manufacturing traceability.
Q: What maintenance intervals are recommended?
A: Annual inspection of stem packing with 5-year major service intervals under normal conditions.
Q: Can this valve handle fuel oils?
A: Yes, compatible with marine diesel (MDO) and light fuel oils when ordered with appropriate stem seals.
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