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Marine Low Temperature Gate Valve for LNG Carrier Piping, -196℃ Operation
Product Spotlights
Engineered for LNG carrier safety, this cryogenic gate valve guarantees reliable operation at -196°C. Featuring extended stem design to prevent icing, cryogenic-grade materials, and API-compliant construction, it ensures leak-tight sealing and durability in marine environments. Available in sizes DN50-DN600 with multiple actuation options for seamless integration.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Stainless Steel 316L / Forged Steel
Application:
Other, LNG Carrier Piping
Operation Temperature:
-196°C to +50°C
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Stainless Steel 316L / Forged Steel
Application
Other, LNG Carrier Piping
Operation Temperature
-196°C to +50°C
Connection Type
Flanged (RF, RTJ)
Valve Size Range
DN50 to DN600 (2“ to 24“)
Pressure Rating
Class 150 to Class 600
Actuation Type
Manual / Gear / Pneumatic / Electric
Seat Type
Soft Seat (PTFE) / Metal Seat
Design Standard
API 600, API 602, BS 6364
As a leading manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our advanced Marine Low Temperature Gate Valve, engineered specifically for the demanding environments of LNG carrier piping systems. With a proven track record supplying to global markets across North America, Europe, Asia, and beyond, we understand the critical need for reliability and safety in cryogenic applications. This valve is meticulously designed to operate flawlessly at temperatures as low as -196°C, ensuring secure flow control for liquefied natural gas. Our commitment to precision manufacturing under ISO9001-certified processes guarantees that every valve meets the highest standards of performance and durability required by the marine and energy sectors.
This specialized gate valve is the cornerstone of safe and efficient LNG transfer operations. Its core value lies in its ability to maintain structural integrity and leak-tight sealing under extreme thermal cycling, preventing costly downtime and potential hazards. Engineered for longevity, it withstands the challenging conditions of marine environments, including vibration, corrosion, and thermal shock. By choosing our valve, shipbuilders and operators gain a robust component that enhances the overall safety and operational efficiency of their LNG carriers, contributing to a more reliable and profitable logistics chain.
Key Features & Technical Advantages:
- Ultra-Low Temperature Performance: The valve body, bonnet, and critical internal components are manufactured from specially selected materials like Stainless Steel 316L or forged steel, which retain toughness and prevent brittle fracture at cryogenic temperatures down to -196°C.
- Advanced Sealing System: Features a dual-sealing design. A primary soft seat (often PTFE-based) ensures bubble-tight shut-off at low temperatures, while an optional secondary metal seat provides fire-safe capability and extended service life.
- Extended Stem Design: Incorporates an extended bonnet or stem design. This critical feature creates an insulating air chamber that prevents heat transfer from the environment to the valve body, eliminating external icing and protecting packing materials.
- Robust Construction: Built in compliance with international standards such as API 600 and BS 6364 for cryogenic valves. The robust construction ensures high resistance to pipeline stresses, vibration, and water hammer effects common in shipboard piping.
- Flexible Actuation Options: Available with manual handwheel, gear operator, pneumatic actuator, or electric actuator. This flexibility allows for seamless integration into automated ship control systems or manual operations as per the specific piping layout and requirements.
- Superior Flow Characteristics: The full-bore gate design offers minimal pressure drop when fully open, ensuring efficient flow of LNG and reducing pumping energy costs. The unobstructed flow path also minimizes turbulence and potential for cavitation.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Design Temperature Range | -196°C to +50°C |
| Pressure Rating | Class 150, 300, 400, 600 (ANSI) |
| Size Range (Nominal Diameter) | DN50 (2") to DN600 (24") |
| Face-to-Face Dimensions | Per API 600 / ASME B16.10 |
| Flange Connection | RF (Raised Face), RTJ (Ring Type Joint) as per ASME B16.5 |
| Body & Bonnet Material | Stainless Steel 316L, LCC, CF8M, Forged Steel A350 LF2 |
| Trim Materials (Seat/Disc/Stem) | SS316L, Stellite Hardfacing, PTFE, Graphite |
| Leakage Class | API 598 (Zero Leakage Target) |
| Packing | Graphite / PTFE Enhanced for Low Temp |
| Operational Benefits | Reliable isolation, Low maintenance, Long service life, Enhanced safety |
Benefits for Your LNG Carrier Project:
- Enhanced Safety & Compliance: Mitigates risks associated with LNG handling by providing a reliable shut-off device designed for cryogenic service, helping you meet stringent maritime safety regulations.
- Operational Reliability: Reduces the risk of in-service failure, which is critical for LNG carriers where unscheduled repairs are extremely costly and logistically challenging.
- Reduced Total Cost of Ownership: The durable construction and high-quality materials minimize maintenance needs and extend valve service life, leading to lower long-term operational costs.
- Global Supply Chain Support: With annual exports valued between US$1-1.5 million and major shipment ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery and logistical support to shipyards worldwide.
- Customization Available: We can tailor valve dimensions, facing, actuation methods, and material grades to meet the specific specifications of your ship design or retrofit project.
Trust in a product backed by nearly a decade of manufacturing expertise and a commitment to quality certified by ISO9001. Our valves are not just components; they are critical safety devices chosen by partners across North America, Europe, Southeast Asia, and other global markets for their LNG infrastructure. We invite you to experience the Zhibang difference—where precision engineering meets unwavering reliability. Contact our technical sales team today to discuss your specific requirements, request detailed CAD drawings, or obtain a competitive quotation. Let us be your trusted partner in securing the flow of energy across the seas.
Frequently Asked Questions (FAQ):
-
Q: What makes this gate valve suitable for -196°C operation on an LNG carrier?
A: Suitability stems from a combination of specially selected cryogenic-grade materials (like 316L stainless) that resist embrittlement, an extended bonnet design to isolate cold fluid from the packing, and sealing elements engineered to remain flexible and effective at extreme low temperatures. -
Q: Are these valves compliant with major marine classification society rules?
A: Our valves are manufactured to standards commonly referenced by classification societies (API, BS). Final approval for a specific vessel typically comes from the classification society (e.g., DNV, ABS, LR) themselves, who will review material certifications, design calculations, and test reports we provide. -
Q: Can you provide actuated versions for remote operation?
A> Yes, absolutely. We offer a range of actuation solutions including pneumatic (cylinder), electric (motor), and hydraulic actuators. The specific type can be selected based on your available power source and control system requirements on board. -
Q: What is the typical delivery lead time for an order?
A: Lead times vary based on order size, valve specifications, and actuation requirements. Standard configurations typically have shorter lead times. We provide estimated schedules upon receipt of your detailed inquiry to ensure they align with your project timeline. -
Q: How do you ensure zero leakage in such critical applications?
A> We employ multiple strategies: precision machining of sealing surfaces, advanced seat materials (PTFE or metal with Stellite), rigorous factory testing per API 598 standards (including low-pressure seat tests), and quality control at every manufacturing stage under our ISO9001 system. -
Q: Do you offer any post-sales support or warranty?
A: Yes, we provide a standard warranty on materials and workmanship. Furthermore, we offer technical support for installation, operation, and maintenance. Spare parts like seals, gaskets, and packing are also available to ensure long-term operability. -
Q: Can the valves be used for services other than LNG, like liquid nitrogen or ethylene?
A: Yes, the design is suitable for various cryogenic fluids. However, the specific material selection and trim may be optimized based on the fluid's properties (e.g., purity, pressure). Please consult with our engineers for non-LNG applications. -
Q: What documentation accompanies the valves?
A> Standard documentation includes a material test certificate (3.1), pressure test certificate, dimensional drawing, and operation manual. Additional certificates, such as NDT reports, can be provided upon request.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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