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Home > Industrial Equipment & Components > Valve > Butterfly Valve > Low Temperature Ball Valve Compliant With CB/T3191, Technical Support and Spare Parts Available

Low Temperature Ball Valve Compliant With CB/T3191, Technical Support and Spare Parts Available

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Product Spotlights

Engineered for extreme cold down to -196°C, this ball valve complies with CB/T3191 cryogenic standards. Features include an extended stem for thermal isolation, specialized seals for leak-free performance, and robust stainless steel construction. Offers multiple actuation options and end connections. Backed by manufacturer's technical support and readily available spare parts for reliable, long-term operation in LNG, petrochemical, and cryogenic storage applications.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Stainless Steel (304, 316) or Carbon Steel

Connection Size:

DN15 - DN300 (or custom sizes)

Operating Temperature Range:

-196°C to +80°C

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Material Stainless Steel (304, 316) or Carbon Steel

Connection Size DN15 - DN300 (or custom sizes)

Operating Temperature Range -196°C to +80°C

Standard Compliance CB/T3191

Connection Type Flanged, Threaded, or Welded

Sealing Material PTFE, Graphite, or Special Cryogenic Seal

Operation Mode Manual, Pneumatic, or Electric Actuator

Pressure Rating PN16, PN25, PN40 (or ANSI Class)

Application Industries LNG, Petrochemical, Cryogenic Storage, Aerospace

As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in producing high-performance industrial valves, including our reliable Low Temperature Ball Valve compliant with CB/T3191. With an annual export value reaching up to US$1.5 million and certifications like ISO9001 ensuring our quality management system, we serve global markets from North America to Southeast Asia. Our cryogenic ball valves are engineered to handle extreme cold environments, offering dependable shut-off control for critical processes in LNG handling, petrochemical plants, and cryogenic storage systems. We provide comprehensive technical support and a ready supply of spare parts, ensuring long-term operational reliability for our clients.

Our valves are designed with several key features to withstand low-temperature challenges:

Extended Stem Design: A lengthened stem prevents cold transfer from the process fluid to the operating mechanism, protecting the actuator and operator from frostbite.
Special Sealing Systems: Utilizing advanced materials like reinforced PTFE or graphite, the seals maintain flexibility and integrity even at temperatures down to -196°C.
Anti-Freeze Lubrication: Internal lubrication is formulated for cryogenic service, preventing seizure and ensuring smooth operation.
Robust Body Construction: Made from stainless steel (304/316) or carbon steel, the valve body offers high strength and corrosion resistance.
Full Port or Standard Port: Options are available to minimize flow resistance (full port) or for standard applications.
Multiple Actuation Options: The valve can be operated manually, or equipped with pneumatic or electric actuators for remote or automated control.

The technical specifications of our standard range are detailed below. Custom configurations are also available upon request.

Parameter	Standard Value / Range	Notes
Design Standard	CB/T3191	Chinese standard for cryogenic valves
Temperature Range	-196°C to +80°C	Typical for LNG & liquid nitrogen
Pressure Rating	PN16, PN25, PN40	ANSI Class 150, 300 also available
Size Range (DN)	15, 20, 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300	Flanged, threaded, or welded ends
Body Material	Stainless Steel 304/316, Carbon Steel WCB	Other materials customizable
Seal Material	PTFE, Graphite, Special Cryogenic Compound	Selected based on fluid & temperature

Choosing our valve brings significant advantages to your operation:

Leak-Free Performance: Precision machining and tested sealing ensure minimal leakage, crucial for expensive or hazardous cryogenic media.
Long Service Life: High-quality materials and design reduce wear, extending maintenance intervals and lowering lifecycle costs.
Operational Safety: The extended stem and proper insulation features protect personnel and equipment from extreme cold exposure.
Easy Maintenance: A modular design allows for straightforward replacement of seals or other parts using our readily available spare parts.
Flexible Integration: Compatibility with various actuation methods and connection standards simplifies integration into new or existing systems.
Technical Support: Our engineering team provides assistance from selection, installation, to troubleshooting, ensuring optimal performance.

Backed by our ISO9001-certified manufacturing processes and a track record of supplying valves to diverse markets across North America, Europe, Asia, and Africa, Shanghai Zhibang offers a reliable solution for your cryogenic fluid control needs. Our products are shipped from major ports like Shanghai, Guangzhou, Hongkong, and Beijing, ensuring efficient logistics. The combination of robust product design, adherence to the CB/T3191 standard, and our commitment to after-sales support through technical guidance and spare parts availability makes this low-temperature ball valve a dependable choice for demanding applications. Contact us to discuss your specific requirements or to request a detailed quotation.

Frequently Asked Questions (FAQ)

What does "compliant with CB/T3191" mean for this valve?
CB/T3191 is a Chinese technical standard specifically for valves used in low-temperature conditions. Compliance ensures the valve's design, materials, and testing meet defined requirements for performance and safety in cryogenic environments, typically covering aspects like extended stems, sealing, and pressure ratings.
Can this valve be used for liquid nitrogen (-196°C) applications?
Yes, our standard valve range is designed to operate reliably at temperatures as low as -196°C, which is suitable for liquid nitrogen, liquid oxygen, and similar cryogenic fluids. Material selection, especially for seals, is critical and can be customized for your specific fluid.
What types of end connections are available?
We offer flanged connections (following common standards like GB, ANSI, DIN), threaded connections (NPT, BSP), and welded ends. The choice depends on your piping system design.
Is the valve suitable for automated control systems?
Absolutely. The valve can be fitted with pneumatic actuators (for on/off or modulating control) or electric actuators. We provide technical support for selecting and integrating the appropriate actuator.
How does the "extended stem" feature work?
The stem is longer than in standard ball valves. This creates a thermal barrier, isolating the cold fluid inside the valve body from the operating handle or actuator mounted outside, preventing frost formation and ensuring safe manual or automated operation.
What spare parts are typically needed and are they available?
Common spare parts include seal rings (seat seals), stem seals (gaskets), and ball assemblies. We maintain stock of these critical components and can supply them promptly to minimize downtime during maintenance.
Does the valve come with any performance test reports?
Yes, each valve undergoes factory testing, including pressure tests and low-temperature cycle tests where applicable. Test reports can be provided upon request.
Can you customize the valve for a specific pressure rating or size not listed?
Yes, as a manufacturer, we offer customization services. Non-standard sizes, special pressure ratings (higher or lower), or unique material combinations can be developed based on your project specifications.