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Help CenterThreaded Connection CB/T3191 Bronze Ball Valve PN1.6MPa Marine Grade for Ship Piping
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As a specialized manufacturer with a focus on marine and industrial fluid control, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Threaded Connection Bronze Ball Valve, engineered to the rigorous CB/T3191 standard. This valve is specifically designed for demanding ship piping applications, offering reliable performance under a pressure rating of PN1.6MPa. Our commitment to quality, backed by ISO9001 certification, ensures that every valve meets the high standards required for maritime safety and operational efficiency. We understand the critical nature of shipboard systems, which is why our marine-grade bronze ball valve is built to withstand corrosive marine environments while providing long-lasting, leak-free service.
This valve is a cornerstone component for various fluid handling tasks onboard vessels. Its robust construction and precise engineering make it suitable for a wide range of media, including seawater, freshwater, fuel, and lubricating oils. The design prioritizes ease of operation, maintenance, and integration into existing piping networks, helping shipbuilders and repair yards streamline their processes. With our annual export value reflecting a strong global presence from North America to Southeast Asia, we have proven our capability to deliver dependable valve solutions that ship operators and builders can trust.
Key Features and Technical Advantages:
- Superior Corrosion Resistance: Manufactured from high-grade bronze alloy specifically selected for marine applications. This material offers excellent resistance to saltwater corrosion, dezincification, and erosion, ensuring a prolonged service life even in the harshest oceanic conditions.
- Reliable Sealing Performance: Features a precision-machined ball and PTFE (Polytetrafluoroethylene) seats. This combination provides a bubble-tight seal, minimizing the risk of leaks which is paramount for ship safety and environmental protection. The low-friction PTFE also ensures smooth operation over thousands of cycles.
- Robust Pressure Handling: Rated for PN1.6MPa (approximately 232 psi), this valve is designed to handle the typical and peak pressure demands found in shipboard cooling, bilge, ballast, and general service piping systems with a significant safety margin.
- Standardized Threaded Connections: The threaded ends are produced in strict compliance with the CB/T3191 standard, a common Chinese standard for ship pipe fittings. This guarantees compatibility with a wide range of piping components used in shipbuilding, facilitating easier installation and replacement.
- Compact and Efficient Design: The full-port design minimizes pressure drop across the valve, allowing for efficient fluid flow. The compact body saves valuable space in the often-congested engine rooms and piping runs of a ship.
- Easy Operation and Maintenance: The quarter-turn operation allows for quick opening and closing. The stem is designed with a blow-out-proof feature, and the packing can be adjusted or replaced with the valve in service, reducing downtime during maintenance.
Technical Specifications:
| Product Type | Two-Piece Threaded Ball Valve |
| Body & Trim Material | Marine Grade Bronze (C95800 or equivalent) |
| Seat & Seal Material | PTFE (Standard), other materials available upon request |
| Pressure Rating | PN1.6MPa (Class 150) |
| Temperature Range | -20°C to 180°C (with standard PTFE seats) |
| End Connection | Female Threaded (NPT or BSPT as per CB/T3191), sizes customizable |
| Operation | Manual Lever Handle (Standard), gear operator optional |
| Flow Characteristic | Full Port (Reduced port available) |
Benefits for Your Marine Projects:
- Enhanced System Reliability: Reduces the risk of in-service failures, contributing to overall vessel safety and reducing unscheduled maintenance.
- Cost-Effective Lifecycle: The durability of marine-grade bronze leads to lower total cost of ownership by extending replacement intervals and reducing spare parts inventory.
- Simplified Procurement & Installation: Compliance with the recognized CB/T3191 standard simplifies specification and ensures compatibility, speeding up the installation process.
- Global Supply Support: With shipment capabilities from major ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery to shipyards and ports worldwide, supporting your project timelines.
Frequently Asked Questions (FAQ):
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Q: Is this bronze ball valve suitable for seawater applications?
A: Yes, absolutely. It is constructed from marine-grade bronze, an alloy specifically formulated to resist corrosion from saltwater, making it an ideal choice for seawater cooling, ballast, and firefighting lines. -
Q: What does the "CB/T3191" standard refer to?
A: CB/T3191 is a Chinese industry standard for the dimensions, technical requirements, and testing of threaded pipe connections used in shipbuilding. Valves conforming to this standard ensure dimensional interchangeability with other compliant piping components. -
Q: Can this valve be used with fuels like diesel or MGO?
A: Yes, the combination of bronze body and PTFE seals is compatible with many fuels, including diesel and marine gas oil. For specific fuel types or additives, please consult our technical team for material compatibility confirmation. -
Q: What are the available thread types and sizes?
A: Standard threads are typically BSPT (British Standard Pipe Taper) or NPT (National Pipe Taper) as per CB/T3191. Common sizes range from 1/2" to 4". Please provide your required size and thread standard for a precise quotation. -
Q: Do you offer different handle options or actuators?
A: A standard lever handle is included. Options such as a locking handle, handwheel, or pneumatic/electric actuators for remote operation are available. Please specify your requirement when inquiring. -
Q: What is the lead time for an order?
A: Lead time depends on order quantity and specifications. Standard sizes are often available from stock or have shorter production cycles. We provide clear lead time estimates with every quotation to help you plan your project. -
Q: How does your ISO9001 certification benefit me as a buyer?
A: Our ISO9001 certification demonstrates a commitment to consistent quality management in design, production, and inspection. It provides assurance that our valves are manufactured under controlled processes, leading to reliable and traceable products.
Shanghai Zhibang Valve Manufacture Co., Ltd. stands behind this product with the confidence gained from serving a diverse global market, including North America, Europe, Asia, and Africa. Our annual export volume is a testament to the trust placed in us by shipyards, marine equipment suppliers, and vessel operators worldwide. Every valve leaving our facility is a product of stringent quality control aligned with our ISO9001 system, ensuring it performs as specified in the challenging marine environment.
Choosing our Threaded Connection Bronze Ball Valve means selecting a component built for durability, compatibility, and safety. It is an investment in the smooth operation and longevity of your vessel's piping systems. We invite you to contact our sales team for detailed specifications, competitive pricing, and to discuss how we can support your specific marine project requirements. Let us be your reliable partner in fluid control solutions.
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