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Help CenterJIS F7312 Marine Globe Valve Cast Steel DN50 10K Flanged End CCS DNV Approved for Ship System
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Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents the JIS F7312 Marine Globe Valve – a high-performance cast steel valve designed specifically for demanding ship system applications. Manufactured since 2016, our company combines advanced production techniques with strict quality control, backed by ISO9001 certification and annual export values exceeding US$1 million. This globe valve meets JIS F7312 standard, features DN50 size and 10K pressure rating, with flanged ends for easy installation. Approved by CCS (China Classification Society) and DNV (Det Norske Veritas), it ensures reliable operation in marine environments where safety and durability are paramount.
The valve is crafted from high-quality cast steel, offering excellent resistance to corrosion, erosion and thermal shock. Its globe valve design provides precise flow control with a linear motion disc, making it ideal for throttling and shut-off applications in seawater, freshwater, fuel oil, and other shipboard fluids. With a robust construction and proven sealing performance, this valve reduces downtime and maintenance costs, extending the service life of your piping system.
Key Features & Benefits
- Cast Steel Body & Bonnet – High strength and impact resistance, suitable for high-pressure marine environments.
- JIS F7312 Compliant – Full dimensional and testing conformity with Japanese Industrial Standard for marine valves.
- DN50 (2-inch) Flanged Ends – Standard flanges per JIS 10K drilling pattern, easy to connect with ship piping.
- 10K Pressure Rating – Suitable for working pressures up to 1.0 MPa (approx. 145 psi) at ambient temperature.
- CCS & DNV Approval – Certified by leading classification societies, ensuring compliance with international shipbuilding rules.
- Lifting Stem with Handwheel – Smooth operation with visual position indicator, allowing precise flow regulation.
- Stainless Steel Trim (Optional) – Available with SS304/316 disc and seat rings for enhanced corrosion resistance.
- Low Torque Design – Reduced operating effort, even after long periods without use.
Technical Specifications
| Parameter | Value |
| Design Standard | JIS F7312 |
| Size | DN50 (2 inch) |
| Pressure Rating | 10K (1.0 MPa / 145 psi) |
| End Connection | Flanged (JIS 10K) |
| Body Material | Cast Steel (ASTM A216 WCB or equivalent) |
| Trim Material | Stainless Steel (13Cr or 18-8 optional) |
| Operation | Handwheel |
| Test Pressure (Shell) | 1.5 MPa |
| Test Pressure (Seat) | 1.1 MPa |
| Applicable Medium | Water, Oil, Gas, Steam (marine service) |
| Temperature Range | -20°C to +425°C (depending on trim) |
Each valve undergoes rigorous hydrostatic and seat leakage tests in our facility. The flanged end design ensures a leak-tight connection with gaskets and bolts supplied per customer requirements. Optional gear operator or actuator mounting is available upon request. Our inventory includes both standard and custom configurations to meet diverse ship system needs.
Trusted by Global Shipbuilders
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a reliable partner for marine industry clients since 2016. With annual export value between US$1 million and US$1.5 million, our products are shipped to major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, and reach markets across North America, South America, Europe, Asia, Africa, and Oceania. We serve domestic and international shipyards, offshore platforms, and marine repair facilities. Our ISO9001 quality management system ensures consistency and traceability in every batch. Choose our JIS F7312 Marine Globe Valve for a dependable solution backed by professional after-sales support, fast delivery, and competitive pricing. Contact us today for a quotation or technical inquiry – we are ready to assist you in optimizing your ship systems.
Frequently Asked Questions (FAQ)
- What certifications does this valve have? – It is approved by CCS and DNV classification societies, and our factory holds ISO9001 certification. Additional certifications can be arranged upon request.
- What are the working pressure and temperature limits? – The 10K rating corresponds to 1.0 MPa maximum allowable working pressure at ambient temperature. For elevated temperatures up to 425°C, please consult our engineering team for derating factors.
- Can this valve be used for seawater? – Yes, when ordered with stainless steel trim (seat and disc), it is suitable for seawater and other corrosive fluids. The cast steel body should be externally coated with marine-grade paint for additional protection.
- Is the valve supplied with flanges and bolts? – The valve has flanged ends but does not include mating flanges, gaskets, or bolts unless requested. We can supply these as optional accessories.
- What is the typical lead time for DN50 globe valve? – Standard models are in stock and can be shipped within 7-15 days after order confirmation. Customized versions may take 20-30 days depending on quantity and specifications.
- Do you offer gearbox or actuator for remote operation? – Yes, we can provide manual gear operators, electric actuators, or pneumatic actuators. Please specify the required interface and voltage/pressure when ordering.
- How do I install and maintain this valve? – Installation should follow standard piping practices: ensure clean flanges, proper gasket alignment, and tighten bolts evenly. Periodic inspection of stem packing and seat integrity is recommended. A full maintenance manual is provided with each shipment.
- Can I get a sample before mass production? – Absolutely. We offer sample orders for evaluation, with sample cost refunded upon receiving a bulk order. Contact our sales team for details.
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