Stainless Steel Marine Low Temperature Gate Valve for -196℃ Cryogenic Service
Product Spotlights
As a specialized manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to introduce our precision-engineered Stainless Steel Marine Low Temperature Gate Valve. Designed specifically for the demanding environment of cryogenic service down to -196°C, this valve is a critical component for ensuring safety and reliability in marine applications, LNG handling, and other ultra-low temperature processes. Our decade of experience since 2016, coupled with an annual export value reaching US$1.5 million, underscores our commitment to delivering robust solutions trusted by clients across North America, Europe, Southeast Asia, and beyond.
This valve is engineered to perform flawlessly in the most extreme cold, preventing seat leakage and ensuring smooth operation where standard valves would fail. Its core value lies in providing a secure shut-off for cryogenic fluids, protecting expensive downstream equipment, and minimizing operational downtime in critical industrial and marine systems.
Key Features and Technical Advantages:
- Superior Material Integrity: Constructed from high-grade stainless steel (such as CF8M/316), the valve body and internal components maintain exceptional toughness and corrosion resistance at cryogenic temperatures, preventing brittle fracture.
- Extended Bonnet Design: Features a long, insulated bonnet that acts as a thermal barrier. This design keeps the stem packing at a warmer temperature, preventing freeze-up of the stem seal and ensuring the handwheel or actuator remains operable.
- Specialized Seat and Seal Technology: Utilizes flexible wedge or specially hardened solid wedge designs paired with low-temperature compatible sealing materials (e.g., PTFE, reinforced PTFE) to guarantee a bubble-tight seal even after thermal cycling.
- Precision Machining: All sealing surfaces are precision-machined and lapped to achieve optimal surface finish, minimizing leakage paths and ensuring reliable long-term performance.
- Versatile Operation Options: Available with standard handwheel, gear operator, or can be configured for pneumatic/electric actuation, providing flexibility for remote or automated control systems.
- Robust Construction: Manufactured in compliance with international standards like API 600 and API 6D, ensuring structural integrity under high pressure differentials at low temperatures.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Design Standard | API 600, API 6D, BS 1873 |
| Temperature Range | -196°C to +80°C |
| Pressure Class | Class 150, Class 300, Class 600 (Customizable) |
| Size Range | 1/2" to 24" (DN15 to DN600) |
| End Connection | RF Flange, BW, SW (Available upon request) |
| Body Material | Stainless Steel CF8M (316), CF8 (304), LCC, LCB |
| Trim Material | Stem & Wedge: SS316/304; Seats: PTFE/Stellited |
| Operation | Handwheel, Gear Operator, Pneumatic/Electric Actuator |
Benefits for Your Operation:
- Enhanced Safety: Reliable shut-off prevents dangerous leaks of flammable or asphyxiating cryogenic fluids, protecting personnel and assets.
- Reduced Maintenance: The robust design and cryogenic-optimized materials minimize wear and tear, leading to longer service intervals and lower lifecycle costs.
- Operational Reliability: Ensures consistent performance in critical applications, avoiding unplanned shutdowns in LNG carriers, storage terminals, or processing plants.
- Global Compliance: Manufactured to widely recognized standards, facilitating approval for use in international projects and diverse markets.
- Customization Support: As a manufacturer, we offer tailored solutions for specific pressure ratings, sizes, or actuation requirements to fit your exact system needs.
Shanghai Zhibang's proven track record is your assurance of quality. With our products shipped globally from major ports like Shanghai, Guangzhou, and Hong Kong, we have established a strong presence in over a dozen key markets, from Eastern Europe and North America to Oceania and Africa. Our ISO9001 certification is a testament to our systematic approach to quality control in every manufacturing step. Choosing our Stainless Steel Marine Low Temperature Gate Valve means investing in a component built for endurance, backed by a manufacturer with substantial export experience and a commitment to meeting the stringent demands of the global cryogenic industry. Contact us today to discuss how this valve can enhance the safety and efficiency of your low-temperature applications.
Frequently Asked Questions (FAQ):
-
Q: What is the primary application for this valve?
A: This valve is specifically designed for cryogenic service in marine environments, such as on LNG carriers and bunkering systems, as well as in land-based LNG storage tanks, vaporization stations, and other processes handling fluids like liquid nitrogen, oxygen, or argon at temperatures as low as -196°C. -
Q: Why is a "long bonnet" necessary for cryogenic valves?
A: The extended bonnet creates a thermal isolation chamber. It distances the stem packing and operating mechanism from the ultra-cold fluid, preventing the packing from freezing solid and ensuring the valve can be operated safely and reliably when needed. -
Q: Can this valve be used with both liquid and gaseous cryogenic media?
A: Yes, it is suitable for both liquid and gaseous phases of cryogenic fluids. The design ensures tight sealing regardless of the phase, making it versatile for various points in a cryogenic transfer or processing system. -
Q: What types of end connections are available?
A: We typically offer flanged (RF), butt weld (BW), and socket weld (SW) connections. The choice depends on your piping system design and pressure class requirements. Specific standards can be discussed upon request. -
Q: Is the valve suitable for frequent cycling operation?
A: While gate valves are generally designed for isolation (open/close) rather than frequent throttling, our cryogenic gate valve is built with durable materials and precision machining to withstand a reasonable number of cycles. For applications requiring very frequent operation, we recommend consulting our engineers for the best configuration. -
Q: Do you provide actuated versions of this valve?
A: Absolutely. We can supply the valve with pneumatic or electric actuators for remote or automated control. Actuator selection depends on your available power source, required torque, and control system interface. -
Q: What quality certifications does your production process hold?
A: Our manufacturing facility is ISO9001 certified, which ensures a consistent and controlled quality management system throughout the production process, from material sourcing to final testing and dispatch. -
Q: What is the typical lead time for an order?
A: Lead time varies based on order quantity, size, pressure class, and customization. Standard configurations generally have shorter lead times. Please contact our sales team with your specific requirements for an accurate production schedule.
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