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Help CenterLR ABS Approved Marine Pneumatic Quick Closing Valve DN80 PN1.6MPa Cast Steel Body Flanged Connection Quick Closing Time ≤2s
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Shanghai Zhibang Valve Manufacture Co., Ltd (established in 2016) proudly presents our LR ABS Approved Marine Pneumatic Quick Closing Valve – a critical safety component designed for marine fuel oil systems. With over US$1 million annual export value and ISO9001 certified production, we deliver reliable performance for demanding offshore environments. This DN80 PN1.6MPa cast steel valve features flanged connection and ultra-fast closing time ≤2 seconds, ensuring emergency shut-off compliance under LR and ABS classification requirements.
Our quick closing valve is engineered to meet the highest maritime standards, providing robust protection against fuel leakage and fire hazards. The pneumatic actuation ensures rapid response, while the cast steel body guarantees durability in corrosive marine conditions. Designed for main engine fuel supply lines, bunker tanks, and emergency shutdown systems, this valve is an essential component for vessel safety and regulatory compliance.
Key Features & Technical Specifications
- LR & ABS Type Approval: Fully certified by Lloyd's Register and American Bureau of Shipping, ensuring global acceptance for marine applications.
- Rapid Closing Action: Pneumatic actuator delivers complete closure in ≤2 seconds, exceeding SOLAS requirements for emergency fuel shut-off.
- Robust Construction: Cast steel body (WCB or equivalent) with corrosion-resistant coating, suitable for below-deck and engine room environments.
- Flanged Connection: Standard EN1092-1 PN16 flanges for easy installation and maintenance, compatible with most marine piping systems.
- Built-in Safety: Spring-return fail-safe mechanism ensures valve closes automatically upon loss of pneumatic pressure or power failure.
- Low Maintenance: Sealed pneumatic actuator with stainless steel stem and PTFE seals reduces wear and extends service life.
| Parameter | Value |
| Nominal Diameter | DN80 (3 inches) |
| Rated Pressure | PN1.6MPa (16 bar) |
| Closing Time | ≤2 seconds |
| Actuator Type | Pneumatic, spring-return |
| Body Material | Cast Steel (WCB) |
| Connection | Flanged (EN1092-1 PN16) |
| Certification | LR ABS Type Approval, ISO9001 |
| Operation Temperature | -20°C to +200°C (depending on seal) |
| Media | Fuel oil, heavy oil, diesel |
Advantages & Customer Benefits
- Enhanced Safety: Immediate shutdown prevents fuel spillage and fire spread, protecting crew and vessel.
- Regulatory Compliance: Meets LR and ABS rules for quick closing valves, simplifying classification surveys.
- Reliable Operation: Pneumatic control with manual override option ensures fail-safe performance even in harsh conditions.
- Easy Integration: Standard flanged dimensions and pneumatic interface allow direct replacement of existing valves on most vessels.
- Long Service Life: Cast steel body and corrosion-resistant internal components reduce maintenance frequency and downtime.
As a trusted manufacturer with ISO9001 quality management system, Shanghai Zhibang Valve ensures every valve undergoes rigorous testing including hydrostatic shell test, seat leakage test, and pneumatic actuation cycle test. Our experienced team provides technical support for installation, commissioning, and troubleshooting worldwide.
Frequently Asked Questions (FAQ)
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Q: What certifications does this valve have?
A: This valve is LR and ABS type approved, and our factory is ISO9001 certified. Certificates are available upon request. -
Q: Can the valve be used for other media besides fuel oil?
A: Yes, it is suitable for various liquids and gases within the pressure and temperature limits. For specific media compatibility, please consult our engineering team. -
Q: What is the exact closing time under normal conditions?
A: The closing time is ≤2 seconds from full open to full closed, tested with nominal air pressure of 6-8 bar. -
Q: Is the valve available in other sizes or pressure ratings?
A: Custom sizes from DN50 to DN200 and pressure ratings up to PN4.0MPa are available on request. Contact us for details. -
Q: What is the fail-safe mechanism?
A: The valve is spring-return to close, meaning it automatically closes when pneumatic pressure is lost (e.g., air supply failure or emergency stop). -
Q: How long is the warranty period?
A: Standard warranty is 12 months from date of shipment, with extended warranty options available. -
Q: What packing materials are used for the stem seal?
A: We use PTFE V-ring packing, which provides excellent sealing and low friction. Graphite packing is available upon request for high-temperature applications. -
Q: Do you provide installation and commissioning support?
A: Yes, we offer technical documentation, remote support, and on-site assistance for large orders. Please discuss with our sales team.
Why Choose Shanghai Zhibang Valve?
With annual export value exceeding US$1 million, our products are shipped to over 20 countries including North America, Europe, Southeast Asia, and the Middle East. Our location in Shanghai allows convenient shipment via Shanghai, Guangzhou, Hong Kong, or Beijing ports. We have served major shipyards and marine engineering companies, earning trust for our quality and delivery reliability. Contact us today for a quotation or technical datasheet – we are ready to support your marine projects.
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