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Help CenterDNV BV Approved Marine Straight Globe Check Valve Cast Steel Flanged Type With Factory Warranty & Technical Support
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Shanghai Zhibang Valve Manufacture Co., Ltd. takes pride in offering the DNV BV Approved Marine Straight Globe Check Valve in cast steel with flanged ends. As a professional manufacturer established in 2016 with annual export value exceeding US$1 million, we combine competitive pricing with reliable technical support. Each valve is engineered to prevent backflow in marine piping systems, meeting the strict requirements of classification societies like DNV and BV. Our factory directly provides comprehensive after-sales service and a solid warranty, ensuring long-term performance for demanding maritime applications.
This straight globe check valve is specifically designed for shipbuilding, offshore platforms, and other marine environments where reliability is critical. The cast steel body offers excellent corrosion resistance and mechanical strength. The flanged connection simplifies installation and maintenance, while the globe-style disc ensures tight sealing and smooth operation under varying flow conditions.
Key Features & Technical Specifications
- Material: High-quality cast steel (WCB, WCC, or LCB upon request) ensures durability in seawater and oil systems.
- Design: Straight pattern minimizes pressure drop and reduces turbulence; globe disc provides positive shut-off.
- End Connections: Flanged to ASME B16.5 or EN 1092-1 standard, available in various pressure classes (150# to 300#).
- Pressure Rating: Tested up to 1.5 times the nominal pressure; safe working pressure according to valve class.
- Operating Temperature: -20°C to +300°C (customizable for higher or lower ranges).
- Certifications: Approved by DNV and BV classification societies; factory ISO9001:2015 certified.
- Warranty & Support: 12-24 months factory warranty plus lifelong technical support from our engineering team.
| Parameter | Value |
| Size Range | DN50 – DN600 (2" – 24") |
| Pressure Class | 150LB, 300LB (custom up to 600LB) |
| Flange Standard | ASME B16.5, EN 1092-1, JIS B2220 |
| Test Pressure (Shell) | 1.5 x WP |
| Test Pressure (Seat) | 1.1 x WP |
| Applicable Media | Water, oil, gas (marine systems) |
Product Advantages for Marine Applications
- Reliable Backflow Prevention – The straight globe check valve design ensures instant closure when flow reverses, protecting pumps and pipelines from damage.
- Corrosion Resistance – Cast steel body with optional epoxy coating or stainless steel trim for harsh seawater environments.
- Easy Installation – Flanged ends simplify alignment and bolting; available with raised face or ring joint facing.
- Low Maintenance – Simple internal structure with replaceable seat rings and disc; no need for frequent adjustments.
- Compliance Certified – Full type approval from DNV and BV, making it suitable for new builds and retrofits worldwide.
- Customizable Options – Pressure class, material grade (LCB, WC6, etc.), and end connection can be tailored per project requirements.
Trusted Manufacturer with Global Reach
Shanghai Zhibang Valve Manufacture Co., Ltd. has been serving marine & industrial clients since 2016. Our factory is ISO9001 certified and our valves are regularly shipped to over 15 regions including North America, Europe, Southeast Asia, and Africa. With an annual export value of US$1-1.5 million, we have built a reputation for consistent quality and on-time delivery. We can ship from any of our major ports: Shanghai, Guangzhou, Hong Kong, or Beijing.
Every check valve undergoes rigorous hydrostatic and pneumatic testing before leaving our workshop. Our dedicated technical support team is available to assist with selection, installation, and troubleshooting throughout the valve’s life cycle. Choose our DNV BV approved marine check valve for a combination of certification, performance, and factory-backed assurance.
Frequently Asked Questions
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Q: What certificates do you provide for this valve?
A: The valve is supplied with DNV and BV type approval certificates. We also provide ISO9001 certificate for our quality management system. Additional certificates like Material Certificates (EN 10204 3.1) are available upon request. -
Q: Can you customize the flange standard?
A: Yes, we offer flanges according to ASME, EN, JIS, and other standards. Please specify your required face type (RF, FF, RTJ) and pressure class when ordering. -
Q: What is the lead time for a typical order?
A: For standard sizes (DN50-DN300, class 150/300), lead time is 20-30 working days. For larger or customized valves, please allow 35-45 working days. Expedited shipping can be arranged for urgent projects. -
Q: How does the warranty work?
A: We provide a 12-month warranty from the date of shipment, extendable to 24 months for an additional charge. Any defects caused by material or workmanship will be repaired or replaced free of charge (excluding wear parts). -
Q: Is this valve suitable for high-temperature applications?
A: The standard cast steel (WCB) is suitable up to 300°C. For higher temperatures, we recommend materials like WC6 or WC9 (up to 500°C). Please consult our technical team for specific temperature requirements. -
Q: Do you provide spare parts?
A: Yes, we supply spare parts such as seat rings, discs, gaskets, and bolts. It is recommended to order a set of spares during initial purchase for emergency maintenance. -
Q: What packing and shipping options are available?
A: Each valve is individually packed with plywood cases or crates for export. We ship via sea, air, or express based on your preference. FOB, CIF, and EXW terms are all available. -
Q: Can I get a drawing or technical data sheet before ordering?
A: Certainly. We will provide dimensional drawings, weight, and Cv values upon request. Contact our sales engineering team for full technical documentation.
Contact us today to discuss your marine valve requirements and benefit from factory-direct pricing, certified quality, and responsive support.
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