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Home > Industrial Equipment & Components > Valve > Ball Valve > Marine Low Temperature Ball Valve PN1.6-4.0MPa With Extended Bonnet Design
Marine Low Temperature Ball Valve PN1.6-4.0MPa With Extended Bonnet Design
Product Spotlights
Specifically engineered for marine and cryogenic applications, this ball valve features an extended bonnet design to prevent stem freeze and ensure reliable sealing in low-temperature environments (-196°C). Available in pressure ratings up to PN4.0MPa and sizes from DN15 to DN300, it offers corrosion-resistant materials (SS316/304), optional pneumatic actuation, and is backed by ISO9001 certified manufacturing. It enhances safety, reduces maintenance, and provides durable performance for LNG systems and other critical cold fluid handling.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Stainless Steel (316/304) or Carbon Steel
Application:
Other, Marine
Standard:
ISO9001 certified manufacturing
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Stainless Steel (316/304) or Carbon Steel
Application
Other, Marine
Standard
ISO9001 certified manufacturing
Pressure Rating (PN)
PN1.6MPa, PN2.5MPa, PN4.0MPa
Temperature Range
Designed for low temperature applications
Connection Type
Flanged, Threaded, or Welded
Operation
Manual or Pneumatic Actuator
Size Range
DN15 to DN300 (or custom)
Design Feature
Extended bonnet for insulation
As a leading manufacturer, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for demanding industrial environments. Our Marine Low Temperature Ball Valve PN1.6-4.0MPa with Extended Bonnet Design is engineered specifically to meet the challenges of cryogenic and marine applications. With ISO9001 certified processes and over eight years of industry experience since our establishment in 2016, we deliver valves that combine precision engineering with exceptional durability, ensuring safe and efficient operation in your critical systems.
This valve is a cornerstone for systems handling liquefied natural gas (LNG), refrigerants, and other low-temperature fluids onboard vessels and in related industrial plants. Its core value lies in its ability to maintain reliable sealing and smooth operation even under extreme cold conditions, preventing leaks and operational failures that can lead to safety hazards and costly downtime.
Key Product Features & Technical Specifications:
- Extended Bonnet Design: This critical feature elongates the stem and packing area, distancing it from the ultra-cold fluid in the valve body. This helps prevent ice formation on the stem, ensures the sealing materials remain within a functional temperature range, and allows for easier, safer manual operation or actuator function in cold environments.
- Optimized for Low Temperatures: Materials and internal components are selected for their performance at cryogenic temperatures. This includes special seat materials, stem packing, and body/ball materials that resist thermal contraction and maintain integrity.
- Robust Pressure Handling: Available in pressure ratings of PN1.6, PN2.5, and PN4.0 MPa, providing flexibility for different system pressure requirements.
- Versatile Connection & Actuation: Can be supplied with flanged, threaded, or welded ends to suit your piping design. Operation can be via a manual handwheel/lever or an integrated pneumatic actuator for remote control.
- Corrosion Resistance: Primarily constructed from stainless steel (grades 316 or 304) or suitably coated carbon steel, offering excellent resistance to corrosive marine atmospheres and process fluids.
- Full Port or Standard Port Design: Options are available to minimize flow resistance (full port) or optimize for cost and size (standard port).
Detailed Advantages and Customer Benefits:
- Enhanced Safety & Reliability: The extended bonnet directly contributes to system safety by preventing stem freeze and ensuring consistent sealing, reducing the risk of dangerous leaks in sensitive cryogenic systems.
- Reduced Maintenance & Downtime: The design minimizes issues common in low-temperature valves, leading to longer service intervals, lower maintenance costs, and increased overall system availability.
- Operational Flexibility: Suitable for a wide range of marine applications including LNG carriers, fuel gas supply systems, onboard refrigeration, and chemical transport. Its pressure and size range make it adaptable.
- Long Service Life: High-quality materials and construction, backed by ISO9001 quality management, ensure the valve withstands harsh conditions for extended periods, providing a better return on investment.
- Global Compliance & Supply: As a company exporting to major markets worldwide including North America, Europe, Asia, and Africa, we understand international requirements. Shipment is efficient from key ports like Shanghai, Guangzhou, Hong Kong, and Beijing.
Technical Parameter Table (Common Specifications):
| Parameter | Details / Options |
| Pressure Rating (PN) | PN1.6 MPa, PN2.5 MPa, PN4.0 MPa |
| Size Range (Nominal Diameter) | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN150, DN200, DN250, DN300 (Custom sizes available) |
| Primary Body Material | Stainless Steel 316/304, Carbon Steel (WCB) |
| Connection End Types | Flanged (RF, FF), Threaded (NPT, BSP), Welded (Butt Weld) |
| Operation Mode | Manual (Lever, Handwheel), Pneumatic Actuator (Optional) |
| Seat & Seal Materials | PTFE, Reinforced PTFE, PPL, Metal Seat (for high temp/cryogenic) |
| Temperature Design Range | Designed for applications down to -196°C (LNG) and other low temps |
| Fire Safe Design | Optional feature available upon request |
Trust & Performance Backing:
Shanghai Zhibang Valve is not just a supplier; we are a solution partner with a proven track record. Our ISO9001 certification underpins every manufacturing step, ensuring consistent quality. With an annual export value between US$1 Million and US$1.5 Million, we have successfully supplied our valves to diverse and demanding markets across North America, South America, Eastern and Western Europe, Southeast Asia, Africa, Oceania, and the Middle East. This global reach demonstrates the reliability and acceptance of our products. Our valves are designed to perform where it matters most, offering the durability needed for marine and cryogenic service. For a valve that delivers safety, reduces maintenance burdens, and stands up to extreme conditions, contact us to discuss your specific requirements or to place an order.
Frequently Asked Questions (FAQ):
-
Q: What is the primary purpose of the extended bonnet on this ball valve?
A: The extended bonnet is a specialized design that creates a longer distance between the ultra-cold fluid inside the valve body and the stem packing/sealing area. This helps isolate the operating mechanism from the low temperature, preventing ice formation, ensuring packing remains effective, and allowing for smoother operation (manual or actuated) in cryogenic environments. -
Q: Can this valve be used for LNG applications?
A: Yes, this valve is specifically designed to handle the challenges of liquefied natural gas (LNG) and other cryogenic fluids. The material selection, extended bonnet, and seal designs are optimized for the very low temperatures (down to approximately -196°C) associated with LNG. -
Q: What pressure ratings (PN) are available?
A: We offer this marine low-temperature ball valve in three common pressure classes: PN1.6 MPa, PN2.5 MPa, and PN4.0 MPa. The specific rating required depends on your system's design pressure. -
Q: Are pneumatic actuators available for this valve?
A: Yes, pneumatic actuators are an available option for remote or automated control. They can be supplied as an integrated package with the valve, tailored to your required torque and control signal. -
Q: What materials are typically used for the valve body?
A: The main body materials are stainless steel (such as SS316 or SS304 for superior corrosion resistance) or carbon steel (like WCB). The choice depends on the fluid, temperature, environmental conditions, and project specifications. -
Q: Does the valve come with fire-safe capabilities?
A: A fire-safe design is an optional feature that can be incorporated upon request. This design ensures the valve maintains sealing integrity in the event of exposure to high temperatures from a fire. -
Q: What is the typical size range you supply?
A: Our standard size range covers nominal diameters from DN15 (½ inch) up to DN300 (12 inches). Sizes outside this range can be considered as custom orders. -
Q: How does your ISO9001 certification benefit me as a buyer?
A: Our ISO9001 certification ensures that our manufacturing processes are standardized, controlled, and focused on continuous improvement. It provides you with confidence in the consistent quality, reliability, and traceability of every valve we produce.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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