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Help CenterMarine Bronze Globe Check Valve DN15-DN50 With 1-Year Warranty and Mill Test Certificate
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High-Quality Marine Bronze Globe Check Valve – Trusted by Global Shipbuilders
Shanghai Zhibang Valve Manufacture Co., Ltd., a professional manufacturer established in 2016 with ISO9001 certification and an annual export value of US$1–1.5 million, proudly presents our Marine Bronze Globe Check Valve in sizes DN15 to DN50. This valve is designed to meet the rigorous demands of marine and offshore applications, offering reliable backflow prevention and long service life. Our factory-direct supply ensures competitive pricing and strict quality control, with every valve accompanied by a Mill Test Certificate and a 1-year warranty for your peace of mind.
Our check valve combines a robust marine bronze body with a globe-style design, providing superior sealing performance and minimal pressure loss. It is ideal for seawater cooling systems, ballast lines, fuel oil systems, and other critical marine piping where corrosion resistance is paramount. Each valve undergoes rigorous testing to ensure leak-free operation and compliance with international standards.
Key Features & Benefits
- Marine Bronze Construction: High-strength bronze alloy (e.g., C95800) resists corrosion from seawater, brine, and humid environments – ideal for shipbuilding and offshore platforms.
- Globe Check Valve Design: Provides positive sealing with a guided disc, reducing water hammer and ensuring silent operation even under fluctuating flow conditions.
- Compact & Lightweight: Optimized for installations with limited space; suitable for both horizontal and vertical pipelines.
- Versatile Connection Options: Available with threaded (NPT/BSP) or flanged ends (DIN/ANSI/JIS) – customizable to your system requirements.
- Full Port Design: Minimizes pressure drop and maintains flow efficiency compared to conventional check valves.
- Mill Test Certificate Included: Every valve is supplied with a material and pressure test report, ensuring traceability and quality assurance.
- 1-Year Warranty: Covers manufacturing defects, giving you confidence in long-term reliability.
- Easy Maintenance: Accessible bonnet design allows quick inspection and replacement of internal parts without removing the valve from the pipeline.
Technical Specifications (Typical)
| Size Range | DN15 – DN50 (1/2” – 2”) |
| Body Material | Marine Bronze (C95800 or equivalent) |
| Pressure Rating | Class 150 / 300 (optional, customizable) |
| Operating Temperature | -20°C to +200°C |
| Connection Type | Threaded (NPT/BSP) or Flanged (ANSI/DIN/JIS) |
| Test Pressure (Shell) | 1.5 x Rated Pressure |
| Test Pressure (Seat) | 1.1 x Rated Pressure |
Why Choose Shanghai Zhibang Valves?
As a ISO9001-certified manufacturer exporting over US$1 million annually to markets across North America, Europe, Asia, Africa, and Oceania, we have built a reputation for reliable quality and competitive pricing. Our marine bronze check valves are extensively used in shipyards and offshore projects where safety and durability are non-negotiable. We offer flexible shipping from Shanghai, Guangzhou, Hong Kong, and Beijing ports, ensuring timely delivery worldwide.
Every valve comes with a 1-year warranty and Mill Test Certificate – evidence of our commitment to transparency and quality. Our dedicated engineering team also provides technical support and customized solutions (e.g., special coatings, non-standard connections) upon request. With thousands of satisfied customers and a growing global network, Shanghai Zhibang is your trusted partner for marine valve solutions.
Contact us today to request a quote or sample. Let us help you ensure the safety and efficiency of your marine piping systems with our premium bronze check valves.
Frequently Asked Questions (FAQ)
- What is the maximum working pressure for DN50 size? The standard pressure rating is Class 150 (approx. 200PSI). For higher pressures, we offer Class 300 as an option. Please confirm with our sales team for specific requirements.
- Can this valve be used in vertical pipelines? Yes, the globe check valve design works effectively in both horizontal and vertical installations (flow direction upward).
- Is the Mill Test Certificate included with every order? Yes, we provide a material and pressure test certificate for each valve batch as standard. Individual certificates can be arranged upon request.
- What types of connections are available? We offer threaded (NPT/BSP) and flanged (ANSI 150/300, DIN, JIS) connections. Custom flanges can also be manufactured with a lead time.
- How long does shipping typically take? For standard sizes, we can ship within 15–30 days after order confirmation. Express delivery options are available for urgent orders.
- Does the 1-year warranty cover damage from abrasion or chemical attack? The warranty covers manufacturing defects only. Material selection for aggressive media should be discussed with our technical team to ensure compatibility.
- Can I get a sample before bulk order? Yes, we welcome sample orders. Sample cost and freight are negotiable, and we can deduct the sample fee from future bulk orders.
- What is the difference between globe check and swing check valve? Our globe check valve uses a guided disc perpendicular to the flow, offering tighter sealing and less water hammer than swing check designs. It is preferred for low-pressure systems and where silent operation is critical.
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