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Help CenterHigh Pressure Marine Check Valve for FPSO, Rated 1500LB, A105 Body, API 6D Standard
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As a professional manufacturer of industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to introduce our High Pressure Marine Check Valve for FPSO, rated at 1500LB with an A105 carbon steel body and manufactured to the API 6D standard. Designed for the demanding conditions of floating production storage and offloading (FPSO) vessels and other marine applications, this check valve ensures reliable backflow prevention, operational safety, and long service life. With an annual export value exceeding US$1 million and ISO9001 certification, we combine technical expertise with quality control to deliver valves that meet the strictest industry requirements.
Key Features & Technical Specifications
- High Pressure Capability: Rated for 1500LB (Class 1500), suitable for high-pressure systems typical in FPSO topsides and subsea applications.
- Durable A105 Body: Forged carbon steel A105 provides excellent strength, toughness, and weldability in both low and high temperature environments (-29°C to 425°C).
- API 6D Compliance: Designed, manufactured, and tested in accordance with API 6D, ensuring reliability, face-to-face dimensions, and pressure-temperature ratings.
- Marine-Grade Construction: All components are treated for corrosion resistance, including stainless steel trim options (e.g., 13Cr or 316) to withstand seawater and sour gas environments.
- Low Pressure Drop: Optimized disc and seat geometry minimizes flow resistance, reducing energy loss in the pipeline.
- Quick & Reliable Closing: Swing-type disc provides fast, positive shut-off to prevent reverse flow and protect downstream equipment.
- Easy Maintenance: Bolted bonnet design allows for in-line inspection and replacement of internal parts without removing the valve from the pipeline.
- Customizable Connections: Standard raised-face flanges per ASME B16.5; other end connections (RTJ, BW) available upon request.
- Full Range of Sizes: From 2" up to 24" (larger sizes consult factory), with multiple trim and seat material options.
Technical Parameters (Typical Configuration)
| Parameter | Value |
|---|---|
| Pressure Rating | Class 1500 (1500LB) |
| Body Material | ASTM A105 (Carbon Steel) |
| Trim Material | 13Cr / 316 SS (optional) |
| Design Standard | API 6D / ASME B16.34 |
| Face-to-Face | ASME B16.10 |
| Flange End | ASME B16.5 (RF / RTJ) |
| Temperature Range | -29°C to 425°C (-20°F to 800°F) |
| Test Pressure | Shell: 1.5x / Seat: 1.1x rated pressure |
| Sizes | 2" – 24" (custom available) |
Benefits for FPSO & Marine Operators
- Enhanced Safety: Prevents backflow that could cause pump damage, process upset, or hydrocarbon release in critical FPSO systems.
- Reduced Downtime: Robust A105 body and corrosion-resistant trim extend service intervals and withstand harsh marine environments.
- Compliance Assurance: API 6D certification guarantees adherence to international standards, simplifying project approval by engineering contractors.
- Cost-Effective Operation: Low pressure drop minimizes energy consumption, while durable construction reduces replacement frequency.
- Global Support: Ships from Shanghai, Guangzhou, Hong Kong, or Beijing to markets in North America, South America, Europe, Asia, Africa, and Oceania.
Our marine check valves are trusted by FPSO operators, offshore platform EPCs, and shipyards worldwide. Backed by our ISO9001-certified quality management system, each valve undergoes rigorous shell and seat pressure testing before shipment. Since 2016, Shanghai Zhibang has exported valves worth over US$1 million annually, serving diversified markets including Europe, the Americas, the Middle East, and Southeast Asia. We combine competitive pricing with fast lead times and technical support. Whether you need a standard 1500LB check valve or a customized solution for sour service, contact our team today to discuss your project requirements. Let us be your reliable partner in flow control.
Frequently Asked Questions
Q1: What does 1500LB mean for this check valve?
1500LB (also referred to as Class 1500) is the pressure rating according to ASME B16.34. It indicates the maximum allowable working pressure at a given temperature. For a 1500LB A105 valve, the typical working pressure at 100°F (38°C) is around 3705 psi (255 bar). Please refer to the pressure-temperature chart for exact values.
Q2: Can this valve be used in subsea FPSO applications?
Yes, the A105 body and stainless steel trim options make it suitable for subsea and topside FPSO oil/gas systems. However, for deepwater or sour service (NACE MR0175), we recommend selecting 316 or duplex stainless steel trim and discussing coating options with our engineering team.
Q3: What certifications do you hold for this product?
Our manufacturing facility is ISO9001 certified. The valves are designed to API 6D and can be supplied with material certificates (EN 10204 3.1), hydraulic test reports, and NDE reports upon request. API 6D monogram is available for an additional fee.
Q4: What is the typical lead time for 1500LB check valves?
For standard sizes (2"-12"), typical lead time is 30-45 days after confirmation. For larger sizes or special trim, please consult our sales team for a precise schedule. We also offer express delivery for urgent orders.
Q5: Do you provide flanges with the valve?
Standard delivery includes mating flanges (ASME B16.5 RF) if requested. For weld-end or RTJ connections, flanges are not included. We can also supply gaskets and bolts as a complete package.
Q6: How do I choose the correct trim material for my application?
For clean hydrocarbons or sweet service, 13Cr trim (API Trim 8) is common. For sour service containing H₂S or seawater, we recommend 316 stainless steel or Inconel overlay. Contact our technical team with your fluid composition and operating conditions for the best recommendation.
Q7: Can the valve be repaired in the field?
Yes, the bolted bonnet design allows easy access to the disc and seat without removing the valve from the pipeline. Spare parts kits (seal rings, gaskets, disc) are available upon request. We also provide repair services at our Shanghai facility.
Q8: What is the minimum order quantity (MOQ)?
For standard sizes, MOQ is 1 piece. For custom designs or unusual materials, MOQ may be 2-5 pieces. Contact us for specific requirements.
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