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Help CenterBV Approved Marine Bronze Globe Check Valve DN15-DN50 PN10-PN25 Threaded Connection
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and headquartered in Shanghai, China, is a dedicated manufacturer of high-quality industrial valves. Our BV Approved Marine Bronze Globe Check Valve series, available in sizes from DN15 to DN50 and pressure ratings PN10 to PN25, is specifically engineered for demanding marine and industrial applications where reliability and durability are paramount. With an annual export value of US$1-1.5 million and ISO9001 certification, we combine rigorous quality control with competitive manufacturing to deliver valves that meet international standards. This check valve features a threaded connection design, making it easy to install and maintain in existing piping systems.
The globe-style check valve operates automatically to prevent backflow, ensuring the integrity of fluid systems. Its bronze construction provides excellent corrosion resistance against seawater and other harsh media, making it ideal for marine environments. Each valve undergoes strict testing to achieve BV (Bureau Veritas) approval, confirming its suitability for shipbuilding and offshore applications. Whether used in ballast water systems, cooling water lines, or general industrial pipelines, this valve ensures reliable one-way flow control with minimal pressure drop.
Key Features and Benefits
- BV Approved: Certified by Bureau Veritas, ensuring compliance with international marine standards.
- Premium Bronze Material: High-quality tin bronze offers superior strength and corrosion resistance against saltwater.
- Threaded Connection: Available in BSP or NPT threads for easy installation without welding.
- Globe Check Design: Provides positive sealing and low flow resistance, reducing energy consumption.
- Compact Size Range (DN15-DN50): Suitable for medium-duty applications with space constraints.
- Pressure Ratings PN10-PN25: Handles a wide range of operating pressures up to 25 bar.
- ISO9001 Quality System: Manufactured under strict quality control processes.
- Global Shipping: Convenient delivery from major Chinese ports including Shanghai, Guangzhou, Hong Kong, and Beijing.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Bronze (ASTM B62 / equivalent) |
| Size Range | DN15 (1/2") - DN50 (2") |
| Pressure Rating | PN10 - PN25 |
| Connection Type | Threaded (BSPP, BSPT, NPT optional) |
| Working Temperature | -20°C to +150°C (depending on media) |
| Applicable Media | Water, seawater, oil, gas (non-aggressive) |
| Certification | BV, ISO9001 |
| Standard | EN 558, DIN 3202, BS 5154 |
Detailed Product Advantages
Our marine bronze globe check valve is designed with a robust one-piece body and guided disc mechanism that ensures smooth operation and reduced wear. The valve's streamlined flow path minimizes pressure loss, which translates to energy savings over time. The threaded ends make installation quick and tool-free, and they are compatible with standard pipe fittings. Each valve is individually pressure-tested at 1.5 times the rated pressure to guarantee leak-free performance.
The bronze alloy used is carefully selected to resist dezincification and stress corrosion cracking, common issues in marine environments. This makes the valve an excellent choice for shipyards, offshore platforms, coastal power plants, and desalination plants. Additionally, the compact globe check design allows for vertical or horizontal installation, providing flexibility in system layout. For maintenance, the bonnet can be easily removed to access internal parts without disconnecting the valve from the pipeline.
Trust & Reliability from Shanghai Zhibang
Shanghai Zhibang Valve Manufacture Co., Ltd. has been serving global clients since 2016. With an annual export value of USD 1-1.5 million and ISO9001 certification, we have established a reputation for delivering consistent quality. Our valves are regularly shipped to diverse markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. We proudly offer this BV-approved check valve series that meets the rigorous demands of the marine industry. Every unit comes with full traceability, material certificates, and test reports upon request.
We understand that a valve failure in critical marine systems can lead to costly downtime and safety risks. That is why we invest in precision machining, strict inspection procedures, and durable packaging to protect the product during transit. With our own factory in Shanghai, we can offer competitive pricing and flexible order quantities while maintaining short lead times. Whether you need a standard size or a customized thread type, we are ready to support your project. Contact us today for a quote or technical consultation – we look forward to being your trusted valve supplier.
Frequently Asked Questions (FAQ)
1. What does BV approved mean for this check valve?
BV (Bureau Veritas) approval indicates that the valve design and manufacturing process have been audited and certified by this renowned classification society, ensuring it meets strict marine safety and quality standards.
2. Can this valve be used for hot water or steam?
The valve can handle temperatures up to 150°C. For steam applications, please consult our technical team to verify compatibility with your specific operating conditions.
3. What thread types are available?
We offer both BSP (British Standard Pipe) and NPT (National Pipe Thread) options. Please specify your requirement when ordering. Custom thread configurations are available upon request.
4. Is the valve suitable for vertical installation?
Yes, the globe check valve can be installed in both horizontal and vertical orientations. However, vertical installation with upward flow is recommended to ensure proper disc operation.
5. What is the typical lead time?
For standard sizes (DN15-DN50) with common thread types, lead time is approximately 15-25 working days after order confirmation. Expedited shipping is possible for urgent orders.
6. Do you provide material certificates or test reports?
Yes, we provide material test certificates (MTC) as per EN 10204 3.1 and hydrostatic test reports upon request. Additional documentation can be arranged.
7. How does this valve compare to a spring-loaded check valve?
Our bronze globe check valve uses a gravity-operated disc, which is simpler and more reliable for low-viscosity fluids. For applications requiring quick closing or vertical installation with downward flow, a spring-loaded version may be recommended – we offer that as well.
8. What is the maximum pressure for DN50 PN25 valve?
The PN25 rating corresponds to a maximum allowable pressure of 25 bar (approx. 362 psi) at normal temperature. Always refer to the pressure-temperature rating chart provided with the valve for exact limits.
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