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Help CenterCB/T3191 Flanged Ball Valve With 2-Year Warranty on Body and Seal, Gearbox Operation
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As a leading manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering high-performance industrial valves. Our CB/T3191 Flanged Ball Valve with Gearbox Operation is engineered for demanding applications where reliability and precise control are non-negotiable. Backed by a solid 2-year warranty on the body and seal, this valve represents our commitment to quality and customer satisfaction, ensuring long-term, trouble-free operation in your critical systems. We combine robust manufacturing practices with stringent quality control to provide a valve solution that meets the rigorous standards of global markets from North America to Southeast Asia.
This flanged ball valve is designed for superior shut-off and control in a wide range of industrial fluid handling systems. The integration of a gearbox operator provides significant mechanical advantage, allowing for smooth and efficient operation even under high differential pressures or with larger valve sizes, reducing operator effort and enhancing safety.
- Robust Construction & Extended Warranty: The valve body is crafted from durable materials like carbon steel, stainless steel, or ductile iron, built to withstand harsh industrial environments. The critical sealing components are designed for longevity. Our confidence in their performance is underscored by a comprehensive 2-year warranty covering both the valve body and primary seals, offering you exceptional peace of mind and lower total cost of ownership.
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Efficient Gearbox Operation: The gear operator transforms high input torque into manageable output torque, enabling easy opening and closing. This feature is particularly beneficial for:
- Valves installed in hard-to-reach locations.
- Large diameter valves (typically above DN200).
- Systems with high operating pressures.
- Reliable Sealing Performance: Equipped with advanced seat materials such as PTFE or reinforced PTFE, the valve ensures bubble-tight shut-off, minimizing leakage and product loss. Metal-seated versions are available for high-temperature or abrasive service.
- Versatile Application Range: Compliant with the CB/T3191 standard, this valve is suitable for numerous industries including oil and gas transmission, chemical processing, water and wastewater treatment, power generation, and general industrial piping.
Below is a summary of common technical specifications. Custom configurations regarding materials, pressure ratings, and end connections are available upon request.
| Parameter | Specification / Option |
|---|---|
| Design Standard | CB/T3191 |
| Size Range | DN15 - DN600 (1/2" - 24") |
| Pressure Rating | PN16, PN25, PN40 / Class 150, Class 300 |
| Body Material | WCB (Carbon Steel), CF8/CF8M (Stainless Steel), Ductile Iron |
| Ball Material | Stainless Steel, Chrome Plated Carbon Steel |
| Seat & Seal Material | PTFE, Reinforced PTFE, Metal (e.g., Stellite) |
| Operation Type | Worm Gear Operator (Standard), with optional handwheel |
| End Connection | RF (Raised Face) Flange, FF (Flat Face) Flange, RTJ (Ring Type Joint) |
| Temperature Range | -29°C to +200°C (PTFE Seat), Higher ranges with metal seats |
The primary advantages of choosing our gear-operated flanged ball valve translate directly into operational benefits for your facility:
- Reduced Operational Risk: The reliable sealing and robust construction minimize the risk of unexpected leaks or failures, protecting personnel, equipment, and the environment.
- Lower Maintenance Costs: The durable design and quality materials lead to extended service intervals. The included warranty further reduces potential repair expenses.
- Improved Process Efficiency: Quick and reliable quarter-turn operation allows for fast system isolation or flow diversion, minimizing downtime during maintenance or process changes.
- Enhanced Safety: The gearbox provides a safe means of operating high-pressure or large valves, preventing strain injuries to operators.
With nearly a decade of manufacturing expertise since our establishment in 2016 and an annual export value demonstrating our global reach, Shanghai Zhibang Valve has built a reputation for dependable products. Our ISO9001 certified quality management system ensures consistency and traceability in every valve we produce. Served from major ports like Shanghai and Guangzhou, our valves efficiently reach clients across six continents. This CB/T3191 Flanged Ball Valve with Gearbox Operation is a testament to our dedication to engineering excellence. It is more than just a component; it's a reliable partner for your critical operations. Contact us today to discuss your specific requirements and experience the Zhibang difference in quality, service, and value.
Frequently Asked Questions (FAQ)
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Q: What is the main advantage of a gearbox-operated ball valve over a standard hand lever valve?
A: A gearbox provides a significant mechanical advantage, making it much easier to operate larger valves (typically above 2 inches) or valves under high pressure. It reduces operator effort, enhances safety, and allows for operation in confined spaces. -
Q: Does the 2-year warranty cover all parts of the valve?
A: The warranty specifically covers the valve body and the primary sealing components (seats and seals) against defects in materials and workmanship under normal service conditions. Wear parts or damage due to improper installation, misuse, or incompatible media may not be covered. -
Q: Can this valve be used for both on/off service and throttling (flow control)?
A: While ball valves can be used for throttling, they are primarily designed for reliable on/off service. Throttling, especially with abrasive fluids, can accelerate wear on the seats and ball surface. For precise flow control, a different valve type might be recommended. -
Q: What flange standards do your valves comply with?
A: Our flanged ball valves are manufactured to common international standards such as ANSI/ASME B16.5, DIN, JIS, and GB standards. The specific standard and facing (RF, FF, RTJ) can be specified according to your piping system requirements. -
Q: Are fire-safe design options available?
A: Yes, fire-safe versions compliant with standards like API 607, API 6FA, or ISO 10497 are available upon request. These designs include secondary metal seals that maintain sealing integrity in the event of a fire. -
Q: What is the lead time for an order of these valves?
A: Lead time depends on the order quantity, size, material specification, and customization. Standard configurations often have shorter lead times. We recommend contacting our sales team with your detailed requirements for an accurate delivery schedule. -
Q: Can you provide valves with different actuator options instead of a manual gearbox?
A: Absolutely. We can provide valves prepared for the mounting of pneumatic, electric, or hydraulic actuators to enable remote or automated operation. Please specify your automation requirements when inquiring. -
Q: How do I determine the correct material selection for my application?
A: Material selection depends on the fluid media, concentration, temperature, pressure, and environmental conditions. Providing these details to our technical team allows us to recommend the most suitable body, ball, and seat materials (e.g., stainless steel for corrosion resistance, carbon steel for cost-effectiveness in non-corrosive services).
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