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Help CenterCB/T3191 Standard Pneumatic Marine Ball Valve, 90° Operation, Explosion-Proof Actuator Option
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As a leading manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance, reliable fluid control solutions for demanding marine and industrial applications. Our CB/T3191 Standard Pneumatic Marine Ball Valve is engineered to meet the rigorous standards of shipbuilding and offshore operations, offering exceptional durability, precise control, and enhanced safety. With the option for an explosion-proof actuator, this valve is a robust choice for critical systems where reliability is non-negotiable. We combine our manufacturing expertise with a deep understanding of global market needs, ensuring our products deliver consistent performance from Shanghai ports to destinations across North America, Europe, Asia, and beyond.
This valve is designed for superior performance in challenging marine environments. Its core features include:
- Robust Construction: Manufactured from high-grade materials like carbon steel, stainless steel, or duplex steel to resist corrosion from seawater, chemicals, and atmospheric exposure.
- Precise 90° Operation: The quarter-turn pneumatic actuation ensures fast, reliable opening and closing, ideal for remote or automated flow control systems.
- Enhanced Safety with Explosion-Proof Option: The available explosion-proof actuator is designed for hazardous areas, providing an added layer of safety for fuel, gas, or chemical lines.
- Excellent Sealing: Utilizes advanced seat materials such as PTFE or metal seats, ensuring bubble-tight shut-off and long service life even under high-pressure conditions.
- Low Maintenance: The simple yet robust design minimizes wear parts, leading to reduced downtime and lower total cost of ownership.
Detailed technical specifications for common configurations are outlined below:
| Parameter | Specification |
|---|---|
| Design Standard | CB/T3191 (Chinese Shipbuilding Standard) |
| Nominal Diameter (DN) | DN15 to DN300 (1/2" to 12") |
| Pressure Rating | PN16, PN25, Class 150, Class 300 |
| Body Material Options | WCB, CF8, CF8M, Duplex 2205 |
| Seat Material Options | PTFE, RPTFE, Metal (Stainless Steel) |
| Operating Temperature | -20°C to +200°C (Standard PTFE Seat) |
| Actuator Air Supply | 4-7 bar (Standard), Customizable |
| End Connection | Flanged (RF, RTJ), Threaded (NPT, BSP), Butt Weld |
The advantages of choosing our marine ball valve translate directly into benefits for your operations. You gain a valve with high reliability that reduces the risk of system failure at sea. The fast actuation improves operational efficiency in automated processes. The corrosion-resistant materials extend the valve's lifespan, lowering replacement costs. Furthermore, compliance with the CB/T3191 standard ensures it meets specific requirements for marine applications, giving you peace of mind regarding its suitability and performance.
Backed by our ISO9001 certified quality management system and nearly a decade of manufacturing experience since 2016, Shanghai Zhibang Valve stands as a trusted partner. Our annual export value of US$1-1.5 Million reflects our commitment to quality and customer satisfaction across diverse markets from North America to Southeast Asia. We ensure reliable supply from major ports like Shanghai and Guangzhou. For your critical marine and industrial fluid control needs, choose a valve built for performance and endurance. Contact us today to discuss your specific requirements and experience the Zhibang difference.
Frequently Asked Questions (FAQ)
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Q: What does the CB/T3191 standard signify?
A: CB/T3191 is a Chinese national standard specifically for shipbuilding valves. It defines the design, material, testing, and inspection requirements for valves used in marine systems, ensuring they are fit for purpose in shipboard environments. -
Q: When is the explosion-proof actuator necessary?
A: The explosion-proof actuator option is crucial for installations in hazardous areas where flammable gases, vapors, or dust may be present, such as in engine rooms, fuel handling systems, or chemical tanker pipelines. -
Q: Can this valve be used for media other than water?
A: Yes. Depending on the selected body and seat materials, it can handle a wide range of media including oils, fuels, gases, chemicals, and seawater. Please consult with us for your specific media compatibility. -
Q: What is the typical lead time for an order?
A: Lead times vary based on order quantity, specification complexity, and material availability. Standard configurations typically have shorter lead times. We provide accurate delivery estimates upon order confirmation. -
Q: Do you provide custom configurations?
A: Yes. We offer customization for parameters like special materials, pressure ratings, end connections, and actuator specifications (e.g., different air supply pressures, fail-safe modes) to meet unique project needs. -
Q: What kind of testing is performed on these valves?
A> Valves undergo rigorous testing which may include shell strength test, seat leakage test, and operational test. Specific tests are conducted according to the relevant standards and customer requirements. -
Q: How do I select the correct seat material?
A> Seat material selection depends on the operating temperature, pressure, and media. PTFE is common for general use, reinforced PTFE offers better wear resistance, and metal seats are for high-temperature or abrasive services. Our technical team can assist in selection. -
Q: What after-sales support do you offer?
A> We provide comprehensive technical documentation, installation guidance, and responsive customer service. Spare parts for standard models are available to support maintenance needs.
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