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Help CenterLNG Ship Ballast System Check Valve, Low Temperature Resistant, Marine Grade Stainless Steel, DN15-DN100
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer specializing in high-quality valves for marine and industrial applications. Our LNG Ship Ballast System Check Valve is engineered to withstand extreme low temperatures, ensuring reliable performance in liquefied natural gas (LNG) ballast systems. Made from marine grade stainless steel, this check valve offers exceptional corrosion resistance and durability, making it an ideal choice for demanding marine environments. With an annual export value of US$1-1.5 million and ISO9001 certification, we deliver products that meet international standards.
Product Features & Technical Specifications
- Low Temperature Resistance: Designed to operate at cryogenic temperatures down to -196°C, ensuring safe and efficient flow control in LNG systems.
- Marine Grade Stainless Steel: Constructed from high-grade stainless steel (316/316L) to withstand saltwater corrosion and harsh marine conditions.
- Wide Size Range: Available in DN15 to DN100 (1/2" to 4") to fit various pipeline configurations.
- Versatile Connection Options: Flanged, threaded, or welded ends are available upon request to meet specific installation requirements.
- Durable Disc Design: Swing or spring-loaded disc mechanisms prevent backflow effectively, reducing water hammer and maintaining system integrity.
- Low Pressure Drop: Optimized flow path minimizes pressure loss across the valve, enhancing overall system efficiency.
- ISO9001 Certified Manufacturing: Every valve undergoes rigorous quality control to ensure consistent performance and reliability.
- Customizable Options: Additional seals, coatings, or special dimensions can be tailored for unique applications.
Technical Parameters (Typical)
| Size Range | DN15 - DN100 (1/2" - 4") |
| Material | Marine Grade Stainless Steel (316/316L / CF8M) |
| Temperature Range | -196°C to +80°C (cryogenic service) |
| Pressure Rating | PN16 / PN25 / PN40 (other ratings customizable) |
| Connection Type | Flanged (PN10/16/25), Threaded (BSP/NPT), or Welded ends |
| Disc Type | Swing type or spring-loaded (optional) |
| Application | LNG carrier ballast systems, cryogenic piping, marine engineering |
| Certification | ISO9001:2015 |
Key Benefits for Your Application
- Enhanced Safety: Prevents backflow of LNG and ballast water, protecting pumps and critical system components from damage.
- Extended Service Life: Marine grade stainless steel resists pitting and crevice corrosion, even in high-salinity environments.
- Low Maintenance: Simple and robust design reduces need for frequent servicing, lowering total cost of ownership.
- Space-Saving: Compact dimensions allow easy installation in tight shipboard spaces.
- Global Compatibility: Available with international flange standards (DIN, ANSI, JIS) and common thread types.
Why Choose Shanghai Zhibang Valve?
With a strong track record since 2016, we have supplied valves to over 10 countries across North America, Europe, Asia, and Africa. Our ISO9001 certified production facility ensures consistent quality, and our annual export volume of US$1-1.5 million reflects the trust of international buyers. We offer flexible shipping options from Shanghai, Guangzhou, Hong Kong, or Beijing ports, ensuring timely delivery. Every check valve is tested for cryogenic performance and pressure integrity before dispatch. Contact us today to discuss your specific LNG ballast system requirements—we provide customization, competitive pricing, and reliable after-sales support.
Frequently Asked Questions (FAQ)
Q1: What is the minimum temperature this check valve can withstand?
A1: The valve is designed for cryogenic service down to -196°C, suitable for LNG applications. Please confirm with our technical team for specific temperature requirements.
Q2: Is the valve suitable for seawater ballast systems?
A2: Yes, the marine grade stainless steel construction (316/316L) provides excellent corrosion resistance against seawater and brine, making it ideal for ballast systems.
Q3: Can I get the valve with flanged connections?
A3: Absolutely. We offer flanged ends in PN10, PN16, PN25, PN40, as well as ANSI Class 150/300. Threaded (BSP, NPT) and welded ends are also available.
Q4: What size range is available?
A4: The standard size range is DN15 to DN100 (1/2" to 4"). For sizes outside this range, please contact us for customized solutions.
Q5: Do you provide spring-loaded check valves?
A5: Yes, we offer both swing-type and spring-loaded disc options. Spring-loaded versions are recommended for vertical installations or where quick closing is needed.
Q6: Is this valve certified for marine use?
A6: Our manufacturing facility is ISO9001 certified. While we do not carry specific marine classification society approvals (e.g., DNV, ABS) unless requested, our valves are designed to meet marine industry standards and can be supplied with relevant certificates upon order.
Q7: What is the lead time for an order?
A7: Typical lead time for standard sizes is 15-25 working days. For custom specifications, please allow 25-35 working days, depending on complexity.
Q8: Can you provide samples before bulk order?
A8: Yes, sample orders are welcome. Please contact our sales team to discuss sample availability and shipping costs.
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