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Help CenterZhibang Marine Gate Valve For FPSO Forged Steel Body PN6.4-16MPa Class Society Certified
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As a professional manufacturer with ISO9001-certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our specialized Zhibang Marine Gate Valve for FPSO applications. Engineered for the demanding environments of Floating Production Storage and Offloading units, this forged steel valve is built to deliver reliable shut-off performance under high-pressure conditions, ensuring operational integrity and safety for critical offshore systems. Our commitment to precision manufacturing and stringent testing makes this valve a dependable component for your marine and offshore projects.
This robust gate valve is designed to meet the specific challenges of FPSO operations, where corrosion resistance, pressure containment, and long-term reliability are non-negotiable. Key features and advantages include:
- Superior Forged Steel Construction: The valve body is forged from high-grade steel, providing exceptional strength, density, and resistance to internal and external stresses compared to cast alternatives. This results in a more compact, lighter, and safer design capable of withstanding the high pressures (PN6.4-16MPa) and dynamic loads encountered offshore.
- Class Society Certification: Each valve undergoes rigorous inspection and testing to obtain certification from recognized marine classification societies. This provides independent verification of the valve's compliance with international marine standards for materials, design, and performance, offering you documented assurance of quality and safety.
- Optimal Sealing Performance: Featuring a wedge or parallel slide gate design, the valve ensures a tight, bubble-tight seal when fully closed, preventing any unwanted leakage in fluid control lines. The seat and sealing surfaces can be tailored with materials like stainless steel or hardened alloys to match specific media (seawater, oil, gas) and enhance service life.
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Versatile Operation & Configuration: Available in various operation modes to suit your system layout and automation needs.
- Manual Operation: Standard handwheel for direct control.
- Gear Operation: Bevel or worm gearboxes for high-torque, low-effort operation on larger valve sizes.
- Hydraulic or Pneumatic Actuation: Optional for remote and automated control systems, ideal for unmanned or hard-to-access locations on an FPSO.
- Corrosion-Resistant Finishes: External surfaces are treated with specialized marine-grade coatings or paints to provide robust protection against saltwater spray, humidity, and harsh atmospheric conditions, minimizing maintenance requirements.
- Full Port Design: The bore is designed to match the pipeline diameter, minimizing pressure drop and turbulence when the valve is fully open, which is crucial for efficient fluid transfer processes.
Technical specifications for a standard configuration are summarized below. Please note that many parameters are customizable based on your project requirements.
| Parameter | Specification / Option |
| Valve Type | Rising Stem Gate Valve, Outside Screw & Yoke (OS&Y) |
| Body Material | Forged Steel (A105, F22, F91, etc.) |
| Pressure Rating | PN6.4, PN10, PN16, Class 150, Class 300, Class 600 (Up to 16MPa) |
| Size Range | Typically from 2" (DN50) to 24" (DN600), larger sizes available |
| End Connection | Flanged (RF, RTJ, FF per ANSI/ASME/DIN/JIS standards) |
| Seat & Seal Material | Standard: 13%Cr Stainless Steel; Optional: Stellite, Alloy 20, etc. |
| Stem Material | A182 F6a or F304/F316 Stainless Steel |
| Packing Material | Graphite or PTFE-based for fire-safe and high-temperature service |
| Test Standards | API 598, ISO 5208 (Shell Test, Seat Test, Back Seat Test) |
The benefits of choosing Zhibang's Marine Gate Valve for your FPSO extend beyond the product itself. By integrating this valve, you gain:
- Enhanced System Safety: The certified design and robust construction contribute directly to the overall safety and environmental protection of the FPSO facility.
- Reduced Lifecycle Costs: The durability and low maintenance needs of forged steel components lead to fewer replacements and lower total cost of ownership.
- Project Compliance: The Class Society certification simplifies the approval process for your project, ensuring compliance with international marine regulations.
- Global Supply Chain Support: With annual exports valued between US$1-1.5 million and main markets spanning North America, South America, Europe, Asia, Africa, and Oceania, we have the experience and logistics network to support global projects. We ship from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing.
Trust in a manufacturer with nearly a decade of industry presence since 2016. Our ISO9001 certification underpins our consistent quality control processes. We understand the critical nature of FPSO components and deliver valves that meet the exacting standards required for uninterrupted offshore operations. For a reliable, certified, and high-performance solution for your fluid isolation needs, contact us to discuss your specifications or request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What does "Class Society Certified" mean for this valve?
A1: It means the valve design, materials, manufacturing process, and final product have been inspected and tested by an independent marine classification society (like DNV, ABS, LR, BV, etc.). The certification confirms the valve complies with specific rules for marine and offshore use, which is often a mandatory requirement for equipment installed on FPSOs and other vessels.
Q2: Why is forged steel preferred over cast steel for FPSO gate valves?
A2: Forged steel has a finer, more uniform grain structure, resulting in higher mechanical strength, better impact resistance, and improved integrity under high pressure and cyclic loading. This makes it more suitable for the critical, high-stress applications found on FPSOs where failure is not an option.
Q3: Can this valve be used for services other than seawater?
A3: Yes. While designed for marine environments, the material options (body, trim, seals) can be selected to handle a wide range of media, including crude oil, produced water, fuel oil, inert gas, and other process fluids common on FPSOs. Please specify your service conditions when inquiring.
Q4: What is the typical delivery lead time for an order?
A4: Lead time depends on the order quantity, size, material specifications, and certification requirements. Standard configurations may have shorter lead times. We provide estimated timelines upon receipt of your detailed inquiry and work to meet project schedules.
Q5: Do you provide actuation packages (hydraulic/pneumatic) with the valves?
A5: Yes, we can supply the valves as manual units or fully assembled with hydraulic or pneumatic actuators, including all necessary mounting kits and controls. This offers a single-source solution, ensuring compatibility and simplified installation.
Q6: How do you ensure the valve's performance in low-temperature environments?
A6: For services below the standard temperature range, we can utilize low-temperature grade forged materials (like LCB, LC3) and appropriate trim. Material impact testing can be conducted to meet specific low-temperature design requirements.
Q7: What documentation accompanies the valves upon delivery?
A7> Standard documentation includes a Material Test Report (MTR/CMTR), Certificate of Conformity, Pressure Test Report, and the relevant Class Society Certificate if applicable. Additional documentation is available upon request.
Q8: Can you customize the valve's painting or coating for a specific corrosive environment?
A8: Absolutely. We offer various external coating systems, including epoxy, zinc-rich primers, and specialized marine coatings, which can be applied to specified thicknesses per customer specifications or international standards (e.g., NORSOK, ISO 12944).
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