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Help CenterDN50-DN200 Cast Steel Marine Straight Globe Check Valve PN1.6-4.0MPa Flanged Manual Stop Valve
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Shanghai Zhibang Valve Manufacture Co., Ltd. is a professional manufacturer founded in 2016, with an annual export value of US$1–1.5 million. Our DN50-DN200 Cast Steel Marine Straight Globe Check Valve PN1.6-4.0MPa is designed for demanding marine and industrial applications. Combining the functions of a globe valve and a check valve in one unit, this flanged manual stop valve offers reliable flow control and automatic backflow prevention. Built from high-quality cast steel and rigorously tested, it delivers exceptional durability, leak-tight sealing, and ease of operation. Whether you need it for seawater systems, fuel oil lines, or general piping networks, this valve is engineered to meet the highest standards of safety and performance.
Key Features & Technical Specifications
- Dual Function Design: Combines manual stop (globe valve) and automatic backflow prevention (check valve) in one body, reducing installation space and costs.
- Cast Steel Construction: Available in WCB, LCB, or stainless steel grades, ensuring corrosion resistance and strength under high pressure.
- Flanged Connections: Compatible with ANSI 150/300, DIN PN16/40, JIS 10K/20K flanges for easy integration into existing systems.
- Manual Handwheel Operation: Ergonomic rising stem handwheel provides precise throttling and positive shut-off.
- Straight Flow Path: Minimizes pressure drop and turbulence, suitable for high-viscosity or particulate-laden media.
- Pressure Range: Rated PN1.6 to 4.0MPa (150–300# equivalent).
- Size Range: DN50 (2") to DN200 (8") – custom sizes available upon request.
- Marine-Grade Reliability: Tested for saltwater, oil, and gas applications; meets ISO9001 quality management standards.
| Parameter | Specification |
|---|---|
| Body Material | Cast Steel (WCB, LCB, CF8, CF8M) |
| Nominal Diameter | DN50 – DN200 (2" – 8") |
| Pressure Rating | PN1.6, PN2.5, PN4.0 MPa (Class150, 300) |
| Connection | Flanged (RF / FF) |
| Temperature Range | -29°C to +425°C (depending on material) |
| Operational Type | Manual handwheel with rising stem |
| Applicable Media | Water, oil, gas, steam, seawater |
| Design Standard | API 603, BS 1873, or customer-specific |
Product Advantages & Customer Benefits
- Space & Cost Savings: By replacing two separate valves (globe + check), you reduce piping length, weight, and installation cost.
- Reliable Backflow Prevention: The check mechanism acts instantly when flow reverses, protecting pumps and equipment from damage.
- Easy Maintenance: Bonnet design allows easy access to internal parts without removing the valve from the pipeline.
- Long Service Life: Cast steel body with hardened seat discs resists wear, even in erosive or high-temperature services.
- Global Compatibility: Flange drilling conforms to ANSI, DIN, JIS, and GB standards – we can supply according to your local requirements.
- Customizable Options: Available with gear operator, locking device, position indicator, or special coatings for corrosive environments.
Trust & Quality Assurance
As a manufacturer with ISO9001 certification, Shanghai Zhibang Valve has supplied valves to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions since 2016. Our valves undergo 100% hydrostatic and pneumatic testing before shipment. We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring fast delivery worldwide. With an annual export value exceeding US$1 million, we have built a reputation for consistent quality, competitive pricing, and responsive after-sales service. When you choose our cast steel marine globe check valve, you choose a partner dedicated to your success.
Frequently Asked Questions (FAQ)
Q1: What is the difference between a globe check valve and a standard check valve?
A1: A globe check valve combines a manual shut-off (globe valve) and an automatic backflow preventer (check valve) in one unit. It allows you to regulate flow and also prevents reverse flow without separate components.
Q2: Can this valve be used for seawater systems?
A2: Yes, we can supply high-grade cast steel (e.g., CF8M) with appropriate anti-corrosion coatings for seawater applications. Please specify the medium when ordering for optimal material selection.
Q3: What flange standards does this valve support?
A3: The valve can be manufactured with flanges meeting ANSI 150/300, DIN PN16/40, JIS 10K/20K, or GB/T standards. Custom flange drilling is also available upon request.
Q4: Is the valve suitable for high-temperature media?
A4: The standard cast steel WCB works up to 425°C. For higher temperatures or cryogenic services, we offer LCB (low temperature) and stainless steel options.
Q5: What is the delivery time for a typical order?
A5: For standard sizes (DN50-DN200), delivery is usually 15–30 working days, depending on quantity and customization. Larger orders can be arranged.
Q6: Do you provide testing certificates?
A6: Yes, we can provide material test reports, pressure test reports, and a certificate of compliance. ISO9001 quality system documents are available upon request.
Q7: Can the valve be operated automatically?
A7: Currently this model is designed for manual handwheel operation. However, we can add a gear box or electric/pneumatic actuator as a customization. Please consult our sales team.
Q8: How do I maintain the valve?
A8: Periodic inspection of the handwheel, stem, and seat sealing surfaces is recommended. If leakage occurs, replace the seat ring or disc. The bonnet can be easily opened for servicing without cutting the pipeline.
Contact us today for a quote or technical consultation. Our engineers are ready to help you select the exact valve for your marine or industrial project. With ISO9001 quality assurance, global logistics, and years of valve manufacturing experience, Shanghai Zhibang Valve is your reliable partner in flow control.
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