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CB/T3191 Low Temperature Marine Ball Valve With Mill Test Report and 2-Year Warranty
Product Spotlights
CB/T3191 standard marine ball valve engineered for reliable performance in cryogenic environments down to -196°C. Features extended stem design to prevent freeze-up, robust construction with material traceability via Mill Test Report, and versatile configurations. Backed by a 2-year warranty and ISO9001 certified manufacturing, it ensures safety and durability for LNG, marine, and industrial low-temperature applications globally.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Product Standard:
CB/T3191
Material:
Stainless Steel (304/316/L) or Carbon Steel
Temperature Rating:
Low Temperature/Cryogenic Service
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Product Standard
CB/T3191
Material
Stainless Steel (304/316/L) or Carbon Steel
Temperature Rating
Low Temperature/Cryogenic Service
End Connection
Flanged, Threaded, or Welded
Pressure Rating
Class 150, Class 300, PN16, PN25, etc.
Operation
Manual Lever, Gearbox, Pneumatic, or Electric Actuator
Seat Material
PTFE, Reinforced PTFE, or Metal Seats
Size Range
DN15 to DN600 (1/2“ to 24“)
Certification
ISO9001 Certified Manufacturing
Warranty
2-Year Warranty
As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance industrial valves for demanding global applications. Our CB/T3191 Low Temperature Marine Ball Valve is engineered to deliver exceptional reliability and sealing integrity in cryogenic and low-temperature environments, such as LNG carriers, onshore/offshore processing, and chemical transport. With an annual export value exceeding US$1 million and a strong presence across continents, we combine rigorous quality control with practical design to provide valves that ensure operational safety and efficiency for our clients worldwide.
This valve is designed to handle fluids at extremely low temperatures without compromising performance. Key features and advantages include:
- Superior Low-Temperature Performance: Constructed from specially treated materials like stainless steel 304/316/L or suitable carbon steel grades, the valve maintains excellent mechanical properties and toughness even in cryogenic conditions, preventing brittle fracture.
- Reliable Sealing System: Features advanced seat materials such as PTFE or reinforced PTFE, which retain elasticity and sealing capability at low temperatures. Metal-seated versions are available for higher temperature differentials or abrasive services.
- Extended Stem Design: A key feature for cryogenic service, the extended neck (stem) ensures the packing and operating mechanism are located away from the cold fluid path, preventing freeze-up and allowing for safe, easy operation.
- Comprehensive Testing: Each valve is subjected to stringent tests, including shell test, seat test, and low-temperature tests, with full documentation provided in the Mill Test Report (MTR).
- Versatile Configuration: Available in a wide range of sizes, pressure ratings, and end connections to suit various piping system requirements.
Detailed technical specifications for common models are summarized below:
| Parameter | Specification |
|---|---|
| Design Standard | CB/T3191 |
| Size Range | DN15 (1/2") to DN600 (24") |
| Pressure Rating | Class 150, Class 300, PN16, PN25, PN40 |
| Body Material | Stainless Steel (304, 316, 316L), Carbon Steel (WCB, LCB) |
| Ball & Stem Material | SS304/316, with optional low-temperature treatment |
| Seat Material | PTFE, RPTFE, PCTFE, Metal (Stainless Steel) |
| Temperature Range | Standard: -29°C to 200°C; Low Temp: -46°C, -101°C, -196°C |
| End Connection | Flanged (RF, RTJ), Threaded (NPT, BSP), Butt Weld |
| Operation | Manual Lever, Gear Operator, Pneumatic/ Electric Actuator |
| Fire Safe Design | Available upon request (API 607/API 6FA) |
The benefits for your operation are clear:
- Enhanced Safety: The robust design and thorough testing minimize the risk of leakage or failure in critical low-temperature applications, protecting personnel and assets.
- Reduced Maintenance & Downtime: High-quality materials and precise manufacturing result in long service life and reliable performance, lowering total cost of ownership.
- Global Compliance: Manufactured in an ISO9001-certified facility, our valves meet international quality standards, facilitating smooth project approval and installation.
- Supply Chain Confidence: Supported by our established export channels from major Chinese ports (Shanghai, Guangzhou, Hong Kong, Beijing), we ensure timely delivery to your location in North America, Europe, Asia, and beyond.
Trust is built on proven performance and commitment. Since our establishment in 2016, Shanghai Zhibang Valve has consistently supplied reliable fluid control solutions to a diverse global market, including North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our annual export volume of US$1-1.5 million is a testament to the trust international partners place in our products. Backed by a 2-Year Warranty and accompanied by a comprehensive Mill Test Report for full traceability, this CB/T3191 Low Temperature Marine Ball Valve represents a low-risk, high-value investment for your marine, energy, or industrial project. Contact us today to discuss your specifications and experience the Zhibang advantage.
Frequently Asked Questions (FAQ)
-
Q: What does "CB/T3191" standard mean for this valve?
A: CB/T3191 is a Chinese national standard specifically for marine valves. It outlines the design, material, manufacturing, testing, and inspection requirements for valves used on ships and marine platforms, ensuring they meet the rigorous demands of marine environments, including low-temperature services. -
Q: How low of a temperature can this valve handle?
A: This valve series is designed for low-temperature and cryogenic service. Standard low-temperature ratings include -46°C (-50°F), -101°C (-150°F), and even lower temperatures like -196°C (LNG service) depending on the material selection and design specifications provided. -
Q: What is included in the Mill Test Report (MTR)?
A: The MTR is a certificate provided with the valve that documents the results of material chemical analysis, mechanical tests (tensile, impact), and product tests (pressure, leak) performed on the batch. It provides traceability and proof of compliance with the ordered specifications. -
Q: Is the 2-year warranty valid globally?
A: Yes, our 2-year warranty covers manufacturing defects in materials and workmanship under normal use conditions. It is valid for our international customers across all our main markets. Specific warranty terms and claim procedures are detailed in our commercial documents. -
Q: Can this valve be customized with different end connections or actuators?
A> Absolutely. We offer various end connections (flanged, threaded, welded) per international standards. The valve can also be fitted with manual gear operators, or pneumatic/electric actuators from reputable brands to suit your automation requirements. -
Q: What are the main applications for this low-temperature ball valve?
A: Its primary applications include LNG ship fuel systems, cargo handling on LNG carriers, onshore LNG receiving terminals, low-temperature liquid storage (oxygen, nitrogen, argon), chemical processing plants, and any offshore or marine piping system handling cryogenic fluids. -
Q: Do you provide fire-safe versions of this valve?
A: Fire-safe design is a crucial option for many projects. We can provide valves that comply with fire-safe standards such as API 607/API 6FA upon request. Please specify this requirement during inquiry. -
Q: What is your typical lead time for an order?
A: Lead time depends on the order quantity, size, and specification complexity. For standard configurations, it typically ranges from 30 to 60 days. We provide accurate lead time estimates upon receipt of your detailed inquiry and can ship from Shanghai, Guangzhou, Hong Kong, or Beijing ports.
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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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