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Help Center316L Marine Globe Check Valve DN50-DN150 Flanged, 18-Month Warranty, Factory Test Report Available
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Shanghai Zhibang Valve Manufacture Co., Ltd has been a trusted manufacturer of high-performance industrial valves since 2016. Our 316L Marine Globe Check Valve is specifically engineered for demanding marine and offshore environments where corrosion resistance and reliability are non-negotiable. This flanged check valve combines the robust design of a globe-type body with the automatic closure function of a check valve, ensuring backflow prevention while handling high-pressure and high-temperature fluids. With an 18-month warranty and a factory test report provided with every unit, you can be confident in the quality and performance of this valve for your critical applications.
The valve is manufactured from premium 316L stainless steel, which offers superior resistance to chlorides and acidic media commonly found in seawater, chemical processing, and shipbuilding. The flanged ends are available in various standards (ANSI, DIN, JIS) to facilitate easy installation into existing piping systems. Available in sizes DN50 to DN150 (2" to 6"), this globe check valve is ideal for controlling flow in ballast systems, cooling water lines, fuel oil systems, and general marine piping.
Product Features & Technical Specifications
- Material Excellence: Made from 316L stainless steel (CF3M casting) with low carbon content to prevent intergranular corrosion during welding.
- Globe Check Design: The valve combines the straight-through flow path of a globe valve with the automatic sealing disc of a check valve, ensuring low pressure drop and reliable closure.
- Flanged Connection: Raised face flanges per ANSI B16.5 (Class 150/300) or DIN/EN 1092-1 (PN16/PN25) available upon request.
- 18-Month Warranty: Covers defects in materials and workmanship from the date of shipment.
- Factory Test Report: Each valve is hydrostatically tested at 1.5 times the design pressure, and a signed report is included.
- Corrosion Resistance: 316L is specifically chosen for marine environments; optional electropolishing available for enhanced surface finish.
- Temperature Range: Designed to operate from -20°C to 200°C (with higher temperature options available upon request).
Dimensions & Weight (Typical Values)
| Size (DN) | L (mm) | H (mm) | Flange OD (mm) | Weight (kg) |
|---|---|---|---|---|
| DN50 | 200 | 140 | 165 | 6.5 |
| DN80 | 260 | 180 | 200 | 12.0 |
| DN100 | 300 | 220 | 220 | 18.5 |
| DN150 | 400 | 290 | 285 | 35.0 |
* Above dimensions are for reference with PN16/Class 150 flanges. Contact us for exact dimensions.
Key Benefits for Buyers
- Long Service Life: 316L material minimizes pitting and crevice corrosion, reducing maintenance and replacement costs in saltwater environments.
- Reliable Backflow Prevention: The lever-assisted disc design ensures quick closure when flow reverses, protecting pumps and equipment.
- Easy Installation: Flanged connections with standard bolt patterns make retrofitting simple.
- Cost-Effective Quality: Direct factory pricing eliminates intermediaries, and our ISO9001 quality system ensures consistent production.
- Traceability: Serial number stamped on each valve; mill certificates for material available upon request.
Company Strength & Trust
Shanghai Zhibang Valve Manufacture Co., Ltd has been serving global customers since 2016. Our annual export value reaches US$1 million to US$1.5 million, reflecting strong demand for our reliable valve products. We hold ISO9001:2015 certification, which covers our entire manufacturing process from raw material inspection to final testing. Our main markets span North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, proving our valves meet international standards. With shipping ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure efficient global logistics.
Every 316L Marine Globe Check Valve is individually tested before packaging. The included factory test report documents the pressure test results, providing you with complete traceability. We are confident in the durability of this product, which is why we offer an 18-month warranty. Whether you need standard sizes or customized dimensions, our engineering team is ready to assist. Contact us today to request a quotation or ask about our OEM/ODM capabilities.
Frequently Asked Questions (FAQ)
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Q: What is the difference between a globe check valve and a standard check valve?
A: A globe check valve integrates a globe-type body shape that provides a straight-through flow path with low pressure drop, while the check function is achieved by a disc that moves vertically. This design offers better sealing performance under low flow conditions compared to swing check valves. -
Q: Can this valve be used for seawater applications?
A: Yes, the 316L stainless steel construction is specifically chosen for its excellent resistance to chloride-induced corrosion, making it ideal for marine and seawater systems. -
Q: What flange standards are available?
A: We offer flanges per ANSI B16.5 (Class 150/300) and DIN EN 1092-1 (PN16/PN25). Other standards like JIS are available upon request. -
Q: Is the factory test report included for every valve?
A: Yes, each valve comes with a signed factory test report showing hydrostatic test results. Material certificates can be provided at an additional cost. -
Q: What is the warranty period?
A: We offer an 18-month warranty from the date of shipment against manufacturing defects. The warranty covers replacement or repair of faulty valves. -
Q: Can I get a custom pressure rating or connection?
A: Custom options are available. Please contact our sales team with your specific requirements for a quotation. -
Q: Do you provide OEM services?
A: Yes, we can manufacture valves with your brand name, custom packaging, and special testing protocols. Minimum order quantities may apply. -
Q: How do I choose the correct size for my system?
A: The valve should be selected based on pipe diameter and flow conditions. Our technical team can help with sizing calculations – simply provide your operating parameters.
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