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As a professional manufacturer from Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, we are proud to introduce our PTFE Seated CB/T3191-92 High Pressure Ball Valve – a robust solution engineered for demanding leak-proof applications. With ISO9001 certification and an annual export value of US$1 million to US$1.5 million, our valves are trusted by clients across North America, South America, Europe, Asia, and beyond. This valve combines the stringent Chinese marine standard CB/T3191-92 with a high-performance PTFE seat, ensuring superior sealing under high-pressure conditions.
Our ball valve is specifically designed to prevent leakage in critical systems such as marine pipelines, oil and gas transfer, and chemical processing. The PTFE seat material offers excellent chemical resistance, low friction, and a long service life. Whether you need a flanged, threaded, or welded connection, this valve is customizable to fit your piping system. Below, we detail the key features and specifications that make this valve a reliable choice for your operations.
Key Features & Benefits
- Leak-Proof Design: The PTFE seat provides a tight seal even at high pressures, reducing the risk of fugitive emissions and fluid loss.
- High Pressure Capability: Suitable for working pressures up to PN40 (or Class 300), ensuring reliable performance in demanding environments.
- CB/T3191-92 Compliance: Manufactured in accordance with the Chinese marine valve standard, guaranteeing compatibility with shipbuilding and offshore applications.
- Corrosion Resistance: Available in carbon steel or stainless steel body options, with internal components treated for enhanced durability.
- Low Torque Operation: The PTFE seat reduces friction, allowing for smooth and easy manual or actuated operation.
- Versatile Connection Types: Choose from flanged, threaded, or welded ends to match your existing pipeline configuration.
- Long Service Life: PTFE is resistant to wear, chemicals, and temperature extremes, minimizing maintenance intervals.
Technical Specifications
| Parameter | Value |
| Standard | CB/T3191-92 |
| Size Range | DN15 – DN200 (1/2" – 8") |
| Pressure Rating | PN16 / PN25 / PN40 (Class 150 – 300) |
| Body Material | Carbon Steel (WCB) / Stainless Steel (CF8/CF8M) |
| Seat Material | PTFE (virgin or reinforced) |
| Connection Type | Flanged (RF/FF), Threaded (NPT/BSP), Welded (BW/SW) |
| Operating Temperature | -20°C to +180°C (depending on media) |
| End-to-End Dimension | Per CB/T3191-92 or custom |
Our valves undergo rigorous testing, including hydrostatic shell tests and seat leakage tests, to ensure they meet the highest quality standards. The PTFE seat is precision-machined to provide a bubble-tight shut-off, making it ideal for applications where zero leakage is mandatory.
Why Choose Shanghai Zhibang Valve?
Since 2016, we have focused on manufacturing reliable valves for global markets. With ISO9001 certification, our production process is controlled from raw material procurement to final inspection. Our annual export value of US$1 million to US$1.5 million reflects the trust of international customers. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring fast delivery to your port. Our main markets span North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more.
We understand that every project has unique requirements. That's why we offer customization in terms of body material, connection type, and even color. Our technical team can assist you in selecting the right valve configuration for your specific pressure and media conditions. Additionally, we provide optional actuation (electric, pneumatic, or manual gearbox) upon request.
Don't settle for valves that compromise on safety. Invest in the PTFE Seated CB/T3191-92 High Pressure Ball Valve – a product built to deliver leak-proof performance year after year. Contact us today for a quote or to discuss your project needs. We are committed to providing you with a valve that exceeds expectations.
Frequently Asked Questions
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Q: What is the maximum pressure rating for this valve?
A: The valve is available in pressure ratings of PN16, PN25, and PN40 (equivalent to Class 150, 200, and 300). Please specify your required pressure when ordering. -
Q: Can this valve be used for seawater applications?
A: Yes, when ordered with a stainless steel body (CF8M) and PTFE seat, it is suitable for seawater and other corrosive fluids. The PTFE material resists saltwater corrosion effectively. -
Q: Is the PTFE seat replaceable?
A: Absolutely. The seat is designed to be replaceable, extending the valve's overall service life. We also offer spare seat kits for maintenance. -
Q: What certifications does your company hold?
A: Our company is ISO9001 certified. We can also provide material test certificates and pressure test reports upon request. -
Q: What connection types are available?
A: We offer flanged (RF or FF), threaded (NPT or BSP), and butt-weld or socket-weld ends. Custom connections can be discussed based on your piping system. -
Q: What is the lead time for a standard order?
A: For standard sizes and materials, the lead time is typically 15–25 working days. Custom orders may require 30–45 days, depending on complexity. -
Q: Do you provide actuated versions of this valve?
A: Yes, we can supply the valve with an electric, pneumatic, or hydraulic actuator. Please provide your control requirements (voltage, torque, signal type) for a tailored solution. -
Q: Can you ship to my country?
A: We ship worldwide from ports in Shanghai, Guangzhou, Hong Kong, and Beijing. We have experience exporting to North America, South America, Europe, Africa, Asia, and Oceania. Contact us for shipping options to your location.
For more information, please reach out to our sales team. We are ready to support your project with high-quality valves and professional service.
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