Contact Platform Support
Help CenterMarine Cryogenic Gate Valve for -196℃ LNG Systems, Flanged Connection
Product Spotlights
Related Products
-
DNV LR Certified Marine Low Temperature Gate Valve, -196℃ to 80℃NegotiableMOQ: 1 Unit -
Marine Low Temperature Gate Valve With Extended Bonnet, -196℃ Cryogenic OperationNegotiableMOQ: 1 Unit
-
Marine Gate Valve for Cryogenic Storage Tanks, Operating Temperature -196℃NegotiableMOQ: 1 Unit
-
Marine Gate Valve for Low Temperature Service Down to -196℃, Stainless Steel BodyNegotiableMOQ: 1 Unit
-
Marine High Temperature Gate Valve With 12-Month Warranty and Mill Test ReportNegotiableMOQ: 1 Unit
As a leading manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance Marine Cryogenic Gate Valve, engineered specifically for the demanding -196°C environment of LNG systems. With a proven track record of exporting to global markets including North America, Europe, and Southeast Asia, we understand the critical need for reliability and safety in marine applications. Our valve is meticulously designed to ensure secure shut-off, exceptional durability, and leak-free performance in liquefied natural gas handling, directly contributing to the operational integrity and safety of your LNG fuel systems and terminal infrastructure.
Constructed from premium stainless steel or specialized low-temperature alloys, this valve is built to withstand extreme thermal cycling and prevent brittle fracture. The flanged connection ensures a robust and secure interface with piping systems, facilitating easier installation and maintenance. Key features include:
- Ultra-Low Temperature Sealing: Utilizes advanced seat and seal materials like PCTFE or PEEK, which maintain elasticity and sealing integrity at cryogenic temperatures, preventing fugitive emissions.
- Extended Bonnet Design: A long bonnet design is critical for cryogenic service. It creates an insulating air chamber, keeping the stem packing at a higher, ambient temperature to prevent freezing and ensure smooth, reliable operation.
- Fire-Safe Design: Optional fire-safe features in accordance with API 607/API 6FA standards provide an additional layer of safety in emergency scenarios.
- Bidirectional Sealing: The valve provides tight sealing in both flow directions, enhancing system flexibility and safety.
- Low Torque Operation: Precision-machined components and low-friction bearings reduce operating torque, allowing for easier manual operation or enabling the use of smaller, more cost-effective actuators.
Technical specifications are detailed in the table below for common configurations. Customizations are available upon request to meet specific project requirements.
| Parameter | Specification |
|---|---|
| Design Temperature | Min. -196°C (-320°F) |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 (ANSI) / PN16-PN420 (DIN) |
| Size Range | DN15 (1/2") to DN600 (24") Standard, up to DN1200 (48") Custom |
| Body Material | A351 CF8/CF8M (304/316 SS), LCB/LCC, Other Low-Temp Alloys |
| Trim Material | Stellite Hardened Trim, Cryogenic Polymer Seats |
| End Connection | RF, RTJ, FF Flanges per ASME B16.5 / EN 1092-1 |
| Operation | Handwheel, Gear Box, Pneumatic/Hydraulic/Electric Actuator |
| Design & Test Standards | API 600, API 6D, BS 6364, ISO 15848 (Fugitive Emissions) |
The benefits of choosing our Marine Cryogenic Gate Valve are substantial. It delivers long-term reliability, reducing unplanned downtime and maintenance costs in critical LNG operations. Its leak-tight performance enhances plant safety and protects the environment. Furthermore, its robust construction ensures a long service life even under continuous thermal stress, providing an excellent return on investment for ship owners and terminal operators.
Backed by our ISO9001-certified quality management system and an annual export value between US$1 Million and US$1.5 Million, Shanghai Zhibang Valve has established itself as a trusted partner in the global valve supply chain. Our products are shipped from major Chinese ports like Shanghai and Guangzhou, ensuring efficient logistics to your project sites worldwide. This valve is not just a component; it's a commitment to safety and performance in your most critical cryogenic applications. We invite you to contact us for a detailed quotation or to discuss your specific technical requirements for a reliable sealing solution in your LNG system.
Frequently Asked Questions (FAQ)
Q1: Why is a special "cryogenic" valve needed for LNG service instead of a standard gate valve?
A: Standard valves use elastomers for seals which become brittle and crack at extremely low temperatures. Cryogenic valves feature specialized materials (like PCTFE) and an extended bonnet design to keep seals functional and prevent stem packing freeze, ensuring safe and reliable operation at -196°C.
Q2: What flange standards and pressure ratings do you offer?
A: We supply valves with flanges conforming to major international standards such as ASME B16.5 (ANSI) and EN 1092-1 (DIN). Pressure ratings range from Class 150 to Class 2500 (ANSI) or PN16 to PN420 (DIN), customizable to match your piping specifications.
Q3: Can this valve be equipped with an actuator for remote operation?
A: Yes. The valve is designed to be compatible with pneumatic, hydraulic, or electric actuators. We can provide the valve as a complete package with an actuator, mounting kit, and controls based on your automation needs.
Q4: How do you ensure the valve's performance and leak-tightness at cryogenic temperatures?
A: Every valve undergoes rigorous testing, including shell tests (high-pressure), seat tests at both ambient and cryogenic temperatures (using liquid nitrogen), and often fugitive emission tests per ISO 15848. This ensures integrity under operational conditions.
Q5: What is the typical lead time for an order?
A: Lead time depends on size, material, and quantity. For standard configurations, it is typically 4-8 weeks. We maintain strategic inventory for common sizes to expedite delivery for urgent projects.
Q6: Do you provide documentation like material test certificates and inspection reports?
A: Absolutely. We provide a comprehensive documentation package including Material Test Certificates (MTC/CMTR), manufacturing procedure specifications (MPS), and final inspection reports. Certificates are traceable to the heat number of the materials used.
Q7: Is the valve suitable for both liquid and gaseous LNG phases?
A: Yes, the valve is designed for full bore flow and is suitable for isolating both liquid LNG (at -196°C) and cold gas/vapor lines in the system, provided the temperature rating is adhered to.
Q8: What after-sales support do you offer?
A: We provide technical support for installation and operation, and offer a standard warranty on materials and workmanship. Spare parts like seals and gaskets are available to ensure long-term maintainability of the valve.
Send Inquiry to This Supplier
You May Also Like
-
Marine Gate Valve Engineered for 425℃ Superheated Steam Lines, Flanged EndsNegotiableMOQ: 1 Unit
-
High Temperature Gate Valve for Cargo Tank Heating Systems on Vessels, 425℃ RatedNegotiableMOQ: 1 Unit
-
Gate Valve for Marine Boiler Steam Isolation, Designed for 425℃ Pipeline TemperatureNegotiableMOQ: 1 Unit
-
Marine High Temperature Gate Valve for 425℃ Steam Service, Carbon Steel Body With Metal SealNegotiableMOQ: 1 Unit
-
High Temperature Gate Valve for Shipboard Steam Systems, 425℃ Continuous Duty, Carbon SteelNegotiableMOQ: 1 Unit
-
DN50-DN200 Flanged Gate Valve for Marine Applications, Rated for 425℃ Operating TemperatureNegotiableMOQ: 1 Unit
-
425℃ Marine Gate Valve Supplied With Standard Compliant Dimensional Drawing and CertificationNegotiableMOQ: 1 Unit
-
PN1.6-6.4MPa High Temperature Gate Valve, 425℃ Capable With Metal-to-Metal SeatingNegotiableMOQ: 1 Unit
-
425℃ Rated Marine Gate Valve With Stellite Hardened Trim for Erosive ServiceNegotiableMOQ: 1 Unit
-
Large Diameter Marine Flanged Gate Valve DN400 for Ship PipelineNegotiableMOQ: 10 Units
