Stainless Steel Marine Check Valve for LNG Carrier, DN15-DN100, PN1.6-4.0MPa, Flanged, -196°C
Product Spotlights
Shanghai Zhibang Valve Manufacture Co.,ltd, a professional manufacturer established in 2016 with an annual export value of US$1–1.5 million, proudly presents our Stainless Steel Marine Check Valve for LNG Carrier. Designed for extreme low-temperature applications down to -196°C, this valve is engineered to ensure reliable backflow prevention in LNG transfer systems. With flanged connections and pressure ratings from PN1.6 to 4.0 MPa, it meets the stringent demands of marine and cryogenic environments. Our ISO9001-certified production process guarantees consistent quality, making this valve a trusted choice for global shipbuilders and energy operators.
Key Features and Technical Specifications
- Material Excellence: Fully constructed from premium stainless steel (304/316L) to resist corrosion and maintain mechanical integrity at cryogenic temperatures.
- Ultra-Low Temperature Capability: Designed for service at -196°C, suitable for LNG and other liquefied gases.
- Flanged Connection: Standard flanged ends (DIN/ANSI/JIS optional) for easy installation and leak-tight sealing.
- Wide Pressure Range: PN1.6 to 4.0 MPa (Class 150 to 300) covering most LNG carrier applications.
- Size Flexibility: Available in DN15 to DN100 (½" to 4") to fit various pipeline systems.
- Low Pressure Drop: Optimized disc design reduces flow resistance and energy loss.
- Quick Response: Spring-loaded or swing-type check mechanism ensures fast closing to prevent backflow.
- Tested and Certified: Each valve undergoes hydrostatic and pneumatic testing in accordance with ISO9001 standards.
Technical Data Table
| Parameter | Value |
| Material | Stainless Steel 304 / 316L |
| Connection Type | Flanged (DIN / ANSI / JIS) |
| Pressure Rating | PN1.6 - 4.0 MPa (Class 150 - 300) |
| Size Range | DN15 - DN100 (½" - 4") |
| Operating Temperature | -196°C to +80°C |
| Design Standard | API 602 / BS 1868 / ISO9001 |
| Test Pressure (Shell) | 1.5 x Rated Pressure |
| Seat Leakage Rate | Zero (ANSI Class VI) |
Benefits for Your LNG Carrier Operations
- Enhanced Safety: Prevents dangerous backflow of cryogenic liquids, reducing risk of pressure surges and system damage.
- Long Service Life: Stainless steel construction withstands thermal cycling and corrosive marine atmosphere.
- Easy Maintenance: Simple design with replaceable seat and disc extends valve life and lowers total cost of ownership.
- Global Compatibility: Available with multiple flange standards to match shipbuilding needs worldwide.
- Compact and Lightweight: Optimized body profile saves space in tight engine rooms and piping layouts.
- Certified Quality: ISO9001 ensures consistent manufacturing and traceability from raw material to final test.
At Shanghai Zhibang Valve Manufacture Co.,ltd, we have been delivering high-performance valves since 2016, with annual exports exceeding US$1 million to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our dedicated team ensures every valve is rigorously tested before shipment. With convenient ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we offer fast and reliable logistics to global customers. We invite you to experience the durability and precision of our Stainless Steel Marine Check Valve. Contact us today to discuss your custom requirements or request a quote.
Frequently Asked Questions (FAQ)
-
Q1: What is the maximum operating temperature of this check valve?
A: The valve is designed for cryogenic service and can operate from -196°C up to +80°C. For higher temperature requirements, please consult our engineering team. -
Q2: Can this valve be used for media other than LNG?
A: Yes, it is suitable for other liquefied gases such as oxygen, nitrogen, argon, and ethylene, provided the material compatibility is verified. -
Q3: What flange standards are available?
A: We offer DIN, ANSI, JIS, and GB/T flanges as standard. Custom flanges can be produced upon request. -
Q4: Is the valve tested before shipment?
A: Every valve undergoes hydrostatic shell test and pneumatic seat test. Test certificates are provided with each order. -
Q5: What is the typical lead time?
A: For standard sizes and materials, lead time is 15–25 working days. Custom orders may require 30–40 days. -
Q6: Does the valve come with a warranty?
A: Yes, we provide a 12-month warranty against manufacturing defects from the date of shipment. -
Q7: Can you provide third-party inspection?
A: Yes, we can arrange inspection by DNV, BV, Lloyds, or other classification societies at additional cost. -
Q8: What are the available packing options?
A: Standard export wooden case or plywood box. Custom packing for special requirements is available.
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