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Help CenterGate Valve for Tanker Ship Fuel Oil Transfer, DN80-DN200
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As a professional manufacturer with ISO9001 certification and a strong export presence across global maritime markets, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and durable fluid control solutions for demanding marine applications. Our Gate Valves for Tanker Ship Fuel Oil Transfer are engineered to meet the rigorous challenges of marine fuel handling, ensuring safe, efficient, and leak-free operation during critical bunkering and transfer processes. With years of experience since our establishment in 2016 and an annual export value reflecting our commitment to quality, we understand the precise requirements of shipbuilders, shipyards, and fleet operators worldwide. This product line represents our dedication to combining robust construction with precise engineering for one of the most critical systems onboard.
These gate valves are specifically designed for the transfer of fuel oil on tanker ships, including Very Large Crude Carriers (VLCCs), product tankers, and bunkering vessels. The core function is to provide a positive shut-off in fuel lines, allowing for isolation during maintenance, routing changes, or emergency situations. The design prioritizes full-bore flow to minimize pressure drop and turbulence, which is crucial for maintaining efficient pumping rates during fuel loading and unloading operations.
- Robust Construction for Marine Environment: Manufactured from materials selected for corrosion resistance and mechanical strength in saline and harsh offshore conditions. Common body materials include cast steel (WCB, LCB) and stainless steel (CF8, CF8M), with options for special coatings or treatments to enhance longevity.
- Bubble-Tight Sealing: Features a parallel or wedge-type disc design that provides a reliable, bubble-tight seal when fully closed, preventing costly and hazardous fuel leaks. The seat and disc surfaces are often hardened or surfaced with stellite or other alloys for superior wear resistance against abrasive particles sometimes found in fuel oil.
- Easy Operation and Maintenance: Designed for ease of operation even in confined engine room spaces. The rising stem design provides a clear visual indication of the valve position (open or closed). Stuffing boxes are packed with high-grade graphite or PTFE packing to ensure a reliable stem seal, adjustable for optimal performance over time.
- Fire-Safe Design: Many models are available with fire-safe features in compliance with standards like API 607 or API 6FA. This design includes secondary metal-to-metal seals that engage in the event of a fire, maintaining isolation even if the primary soft seals are compromised.
- Versatile Actuation Options: While supplied as standard with a manual handwheel, these valves can be easily fitted with gear operators for high-torque applications or automated with pneumatic, hydraulic, or electric actuators for integration into remote-controlled fuel management systems.
The technical specifications of our DN80-DN200 Gate Valve series are detailed below, showcasing the standard configurations we offer. Customizations to meet specific project requirements or class society approvals (like ABS, DNV, LR, BV) are available upon request.
| Parameter | Specification / Option |
| Nominal Diameter (DN) | 80, 100, 125, 150, 200 |
| Pressure Rating | PN16, PN25, Class 150, Class 300 |
| Body Material | Carbon Steel (A216 WCB), Stainless Steel (A351 CF8/CF8M), Ductile Iron |
| Trim Material (Seat/Disc) | 13% Cr Stainless Steel, Stellite Hardfaced, Alloy 20 |
| Stem Material | Stainless Steel (SS410, SS304, SS316) |
| End Connection | Flanged (RF, RTJ), Screwed (NPT, BSP) |
| Design & Test Standards | API 600, API 602, BS 1414, ISO 10434; Tested per API 598 |
| Operating Temperature | Standard: -20°C to 425°C; Low-temp/high-temp options available |
| Packing Material | Graphite, PTFE, Flexible Graphite for high-temp |
The advantages of choosing our gate valves translate into direct benefits for your operations. Their full-port design minimizes flow resistance, leading to faster transfer times and reduced pump energy consumption. The robust construction and corrosion-resistant materials significantly extend service intervals and reduce the total cost of ownership by minimizing unplanned downtime and replacement needs. Furthermore, the reliable sealing performance enhances operational safety by eliminating leak paths, protecting both personnel and the marine environment from fuel oil spills.
Backed by our ISO9001 certified manufacturing processes, which ensure consistent quality from raw material inspection to final pressure testing, you can trust in the reliability of every valve. Our established supply chain from major ports like Shanghai, Guangzhou, and Hong Kong enables timely delivery to shipyards and ports across North America, Europe, Southeast Asia, and other key global markets we serve. With an annual export volume demonstrating our products' acceptance worldwide, we are confident in offering a valve solution that meets the stringent demands of modern tanker ship fuel systems. Contact us today to discuss your specific requirements for DN80-DN200 gate valves, request detailed technical data sheets, or to learn more about our other marine valve solutions.
Frequently Asked Questions (FAQ)
Q1: Are these gate valves suitable for heavy fuel oil (HFO) or marine diesel oil (MDO)?
A1: Yes, they are designed for both heavy fuel oil and marine diesel oil transfer services. Material selections, such as specific stainless steel trims, can be recommended based on the sulfur content and viscosity of the fuel to ensure optimal corrosion and erosion resistance.
Q2: Can you provide valves with specific class society approvals (e.g., ABS, DNV-GL, LR)?
A2: We regularly supply valves for projects requiring class approvals. While standard stock may carry general certifications, valves for specific class approval can be manufactured and tested according to the relevant society's rules. This is a customizable service—please provide the specific class and approval requirements with your inquiry.
Q3: What is the lead time for an order of DN150 valves?
A3: Lead time depends on the material specification, pressure rating, and quantity. For standard carbon steel (WCB) valves in common pressure classes, we often have stock or can deliver within 4-6 weeks. For special materials or larger quantities, the lead time will be confirmed upon receipt of your detailed purchase order.
Q4: Do you offer actuated versions of these valves?
A4: Absolutely. We can supply the valves as manual units ready for actuator mounting (with ISO mounting pad) or provide fully assembled packages with pneumatic, hydraulic, or electric actuators from reputable brands. Control accessories like limit switches, solenoid valves, and positioners are also available.
Q5: How do you ensure leak-tightness, especially after frequent operation?
A5: Leak-tightness is ensured through precision machining of the disc and seat surfaces, the use of resilient or metal-seated designs, and a properly adjusted stuffing box. The gland follower allows for periodic tightening of the stem packing to compensate for wear, maintaining a reliable seal over the valve's lifespan.
Q6: What documentation is provided with the valves?
A6: Standard documentation includes a Material Test Certificate (MTC) for body materials, a pressure test certificate compliant with API 598, a detailed dimensional drawing, and a manual. Additional documentation like NDT reports, full traceability, or specific format certificates can be arranged as needed.
Q7: Are spare parts like gaskets, packing, or discs available?
A7: Yes, we maintain an inventory of critical spare parts for our valve models. We recommend purchasing a maintenance kit with your valve order to ensure you have essential seals and gaskets on hand for future servicing.
Q8: What is your packaging standard for export to prevent damage during sea freight?
A8: Valves are carefully cleaned, dried, and coated with a rust preventive. Flange faces are protected with plywood or plastic covers. They are then packed in sturdy wooden crates or plywood boxes suitable for long-distance ocean transport, ensuring they arrive at your destination in perfect condition.
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