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Marine Fuel Oil Service Ball Valve, CB/T3191 Design With Locking Device, Suitable for Viscous Oil
Product Spotlights
Marine-grade ball valve designed to CB/T3191 standard, featuring an integrated locking device for safe isolation. Specifically engineered for reliable control of viscous marine fuel oils (HFO/MDO), with robust construction, corrosion-resistant materials, and optional fire-safe design. Ensures operational safety, reduces maintenance, and meets the demands of harsh marine environments.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Design Standard:
CB/T3191
Material:
Carbon steel or stainless steel (customizable)
Connection Type:
Threaded, flanged, or socket weld
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Design Standard
CB/T3191
Material
Carbon steel or stainless steel (customizable)
Connection Type
Threaded, flanged, or socket weld
Locking Device
Integrated padlock provision
Suitable Medium
Marine fuel oil, viscous oils
Operation
Manual lever handle or gear operator
Seat Material
PTFE, reinforced PTFE, or metal
Pressure Rating
PN10 to PN40 (customizable)
Temperature Range
-20°C to +180°C (depending on seat)
As a professional manufacturer of industrial valves with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our specialized Marine Fuel Oil Service Ball Valve. Engineered specifically for demanding marine applications, this valve is designed to CB/T3191 standards and features a robust locking device, making it an ideal solution for handling viscous oils and fuel oils on ships, offshore platforms, and in related bunkering facilities. Our focus is on delivering reliable, long-lasting performance that ensures the safety and efficiency of your critical fluid control systems.
This valve is built to withstand the harsh marine environment, offering superior sealing and ease of operation even with high-viscosity fluids. The inclusion of a locking device provides an essential safety feature, preventing unauthorized or accidental operation, which is crucial for fuel management systems. With years of experience in valve manufacturing and a strong export presence across global markets, we understand the specific needs of the marine industry and have tailored this product to meet them.
Core Features & Technical Advantages:
- CB/T3191 Compliant Design: Manufactured in strict accordance with the Chinese shipbuilding standard CB/T3191, ensuring compatibility and reliability for marine installations.
- Integrated Locking Device: A built-in provision for a padlock allows for positive isolation, a critical requirement for fuel oil lines to prevent tampering or misoperation.
- Optimized for Viscous Oil: The full-port or reduced-port design (available upon request) and specialized seat materials minimize pressure drop and prevent clogging when handling heavy fuel oil (HFO), marine diesel oil (MDO), and other viscous media.
- Robust Construction: Available in carbon steel, stainless steel (304/316), and other alloys to resist corrosion from seawater atmosphere and aggressive fuels.
- Versatile End Connections: Supplied with threaded (NPT, BSP), flanged (RF, FF), or socket weld ends to suit various piping specifications onboard.
- Reliable Sealing: Utilizes PTFE or reinforced PTFE seats for excellent sealing and low torque operation. Metal-seated versions are available for higher temperature applications.
- Fire-Safe Option: Optional fire-safe design per API 607/ISO 10497 standards can be provided, where secondary metal sealing prevents leakage in case of a fire.
- Easy Maintenance: The trunnion-mounted or floating ball design (depending on size/pressure) and blow-out-proof stem ensure safety and facilitate in-line maintenance if required.
Technical Specifications Table:
| Parameter | Specification |
| Size Range | DN15 (1/2") to DN300 (12") |
| Pressure Rating | PN10, PN16, PN25, PN40 (Class 150, 300) |
| Body Material | WCB, CF8, CF8M, Duplex Steel |
| Ball Material | Chrome plated or stainless steel |
| Stem Material | Stainless steel (17-4PH or equivalent) |
| Seat Material | PTFE, RPTFE, PEEK, Metal |
| Operating Temp. | -20°C to +180°C (PTFE), up to +425°C (Metal) |
| Locking Type | Padlock provision on handle/gear operator |
Benefits for Your Operations:
- Enhanced Safety: The locking mechanism is a vital safety feature for fuel systems, ensuring valves remain in their intended position (open/closed) during critical operations or maintenance.
- Reduced Downtime: Durable construction and suitable material selection lead to a long service life, minimizing failures and unplanned maintenance in hard-to-access marine environments.
- Improved Flow Control: Smooth bore design offers minimal flow resistance, which is particularly beneficial for pumping viscous fuels, saving energy and reducing strain on pumps.
- Operational Compliance: Adherence to CB/T3191 helps shipyards and operators meet specific classification society requirements for marine valve installations.
- Global Service Support: With our products exported to major markets worldwide, we can provide reliable after-sales support and technical documentation.
Backed by our ISO9001 certified quality management system and nearly a decade of manufacturing expertise since our establishment in 2016, Shanghai Zhibang Valve guarantees a product built with precision and consistency. Our annual export value reflects the trust placed in us by clients across North America, Europe, Asia, Africa, and Oceania. We ship efficiently from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring timely delivery to your project site or vessel. Choose a valve partner that combines specialized design for marine fuel service with proven manufacturing reliability. Contact us today to discuss your specifications, request a quote, or learn more about our full range of marine valves.
Frequently Asked Questions (FAQ):
-
Q: Is this valve suitable for heavy fuel oil (HFO) service?
A: Yes, it is specifically designed for viscous oils like HFO. The design minimizes clogging, and material options like stainless steel balls and reinforced seats handle the abrasive nature of such fuels effectively. -
Q: What is the purpose of the locking device?
A: The locking device allows a padlock to be attached, securing the valve in either the fully open or fully closed position. This is a critical safety feature to prevent accidental operation or tampering with fuel lines, which is often required by safety procedures on ships. -
Q: Can you provide valves with different end connections?
A: Absolutely. We offer threaded (NPT, BSP), flanged (to various standards like JIS, DIN, ANSI), and socket weld ends. Please specify your required connection standard when inquiring. -
Q: Do you offer fire-safe versions of this valve?
A: Yes, fire-safe design is available as an option. These valves incorporate secondary metal seals that maintain sealing integrity in the event of a fire, complying with standards like API 607/ISO 10497. -
Q: What is the lead time for an order?
A: Lead time depends on the order quantity, size, and material specifications. Standard configurations typically have shorter lead times. We provide estimated delivery schedules with every quotation. -
Q: Are your valves accepted by major marine classification societies?
A: Our valves are manufactured to recognized standards like CB/T3191. We can provide necessary material certificates and test reports (e.g., pressure test). Approval from specific classification societies (like ABS, DNV, LR) can be pursued based on project requirements, often involving third-party inspection. -
Q: Can the valve be operated with a gearbox instead of a lever?
A: Yes, for larger sizes (typically above DN100) or higher pressure ratings, we recommend and can supply gear operators. This reduces the operating torque and makes the valve easier to open and close. -
Q: What kind of after-sales support do you provide?
A: We provide technical documentation, including dimensional drawings, material certificates, and test reports. We also offer guidance on installation and maintenance. Spare parts like seats, seals, and stems are available for order.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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