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Help CenterLR ABS Certified Marine Cast Iron Globe Check Valve, DN50-DN200, PN10/16, Flanged Connection, Handwheel Operated
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Introducing the LR ABS Certified Marine Cast Iron Globe Check Valve – a robust and reliable solution for marine and industrial fluid control systems. Manufactured by Shanghai Zhibang Valve Manufacture Co., Ltd., a professional valve manufacturer established in 2016 with an annual export value of US$1–1.5 million, this valve combines premium cast iron construction with LR ABS certification, ensuring compliance with rigorous marine standards. Designed for DN50 to DN200 pipelines and rated PN10/16, it features a flanged connection and handwheel operation, delivering precise flow regulation and backflow prevention in demanding environments. Trust our expertise and global shipping capabilities from Shanghai, Guangzhou, Hong Kong, and Beijing to deliver quality valves worldwide.
✦ Product Features & Technical Specifications
- Durable Cast Iron Body: High-strength cast iron ensures long service life in seawater, freshwater, and oil systems, with excellent corrosion resistance for marine applications.
- LR ABS Certified: Meets the strict requirements of Lloyd's Register and American Bureau of Shipping, guaranteeing safe operation on vessels and offshore platforms.
- Globe Check Valve Design: Combines the functions of a globe valve (throttling/stop) and a check valve (automatic backflow prevention) in one unit, saving space and reducing installation costs.
- Flanged Connection (PN10/16): Standardized flanges conform to DIN/EN dimensions, allowing easy integration into existing piping systems. Pressure ratings up to PN16 suitable for low to medium pressure applications.
- Handwheel Operated: Manual handwheel provides smooth, precise opening and closing with clear position indication. Optional gearbox or actuator available upon request for remote control.
- Size Range DN50–DN200: Covers common pipeline diameters, with custom sizes available on request. Each valve is hydrostatically tested before shipment.
- Low Maintenance: Simple structure with replaceable seat and disc ensures easy servicing. Stainless steel stem with O-ring seal prevents leakage.
✦ Detailed Technical Parameters
| Parameter | Specification |
|---|---|
| Material | Cast Iron (GG25 / ASTM A126 Class B) |
| Size Range | DN50, DN65, DN80, DN100, DN125, DN150, DN200 |
| Pressure Rating | PN10 (10 bar) / PN16 (16 bar) |
| Connection | Flanged, RF (Raised Face) to DIN 2501 / EN 1092-2 |
| Operation | Handwheel (rising stem, stainless steel spindle) |
| Certification | LR (Lloyd's Register), ABS (American Bureau of Shipping), ISO9001:2015 |
| Test Pressure | Shell: 1.5×PN, Seat: 1.1×PN |
| Temperature Range | -10°C to +120°C (standard); optional high-temp version up to 200°C |
| Media | Fresh water, seawater, oil, gas, steam (non-corrosive) |
| Applicable Standards | API 602, BS 1873, EN 13709 (design & testing) |
✦ Key Advantages for Your Business
- Space & Cost Savings: Dual-function globe and check valve eliminates the need for two separate valves, reducing installation complexity and inventory costs.
- Marine Compliance: LR and ABS certification ensures full acceptance by classification societies, simplifying vessel certification processes.
- Proven Manufacturing Quality: Shanghai Zhibang Valve is ISO9001-certified, with systematic quality control from casting to final testing. Every valve is serialized for traceability.
- Global Logistics: Multiple shipping ports (Shanghai, Guangzhou, Hong Kong, Beijing) guarantee timely delivery to North America, South America, Europe, Asia, Africa, and Oceania.
- Customizable Options: Available with gearbox, electric actuator, or pneumatic actuator upon request; also offer different trim materials (bronze, stainless steel) for specific media.
✦ Trust & Assurance
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a dedicated manufacturer since 2016, exporting US$1–1.5 million annually to diverse markets worldwide. Our ISO9001-certified facility employs skilled engineers who perform strict hydrostatic testing on every valve. With a track record of supplying valves to shipyards and industrial projects across 15+ countries, we ensure product reliability and after-sales support. Choose our LR ABS Certified Globe Check Valve for peace of mind in critical marine applications. Contact us today for a competitive quote or technical consultation – we are ready to support your project from inquiry to installation.
✦ Frequently Asked Questions (FAQ)
Q1: What does LR ABS certification mean, and is it mandatory for marine valves?
A1: LR (Lloyd's Register) and ABS (American Bureau of Shipping) are internationally recognized classification societies. Their certification confirms the valve meets strict marine safety and quality standards. While not always mandatory for inland systems, it is required for vessels and offshore platforms that must comply with classification rules.
Q2: Can this valve be used for horizontal or vertical pipelines?
A2: The globe check valve is designed for horizontal installation with the handwheel upright. For vertical pipelines (flow upward), a special spring-loaded version or installation with specific orientation may be required. Please consult our technical team for vertical applications.
Q3: What is the difference between a globe check valve and a separate globe valve + check valve?
A3: A globe check valve combines both functions in a single body: it can be manually closed to stop flow (like a globe valve) and automatically prevents backflow (like a check valve). This saves space, reduces potential leak points, and lowers overall cost compared using two separate valves.
Q4: Are flanges drilled according to EN 1092-2 or ANSI B16.5?
A4: Standard flanges are manufactured to EN 1092-2 / DIN 2501 (PN10/16). ANSI B16.5 Class 150 drilling is available as an option upon request. Please specify your required flange standard when ordering.
Q5: What is the pressure test procedure before shipment?
A5: Each valve undergoes shell hydrostatic test at 1.5 times the rated pressure (e.g., PN16 → test at 24 bar) and seat leakage test at 1.1 times rated pressure. Test certificates are provided with each shipment.
Q6: Can I get a sample valve for testing before bulk order?
A6: Yes, we offer sample orders for testing. Minimum order quantity for samples is usually 1 piece. Lead time for samples is about 7–15 days depending on size and certification requirements.
Q7: What materials are used for the seat and disc?
A7: Standard trim includes stainless steel (SS304 or SS316) for the stem and disc. Seat ring is made of bronze (optional SS316). For seawater service, we recommend Ni-Al bronze trim to enhance corrosion resistance. Please confirm media conditions for optimal material selection.
Q8: How does handwheel operation work in emergency situations?
A8: The handwheel turns a rising stem that opens or closes the valve. A full open/close cycle takes approximately 10–20 turns (depending on size). The handwheel is designed for manual operation without special tools. In emergencies, the valve can be closed quickly by turning the wheel; however, for rapid shutoff, an actuator option is recommended.
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