Contact Platform Support
Help CenterGB/T5744-1993 Marine Quick Closing Valve, Pressure Rating PN16
Product Spotlights
Related Products
-
GB/T5744-1993 Marine Quick Closing Valve, Brass Material, DN50 SizeNegotiableMOQ: 1 Unit -
GB/T5744-1993 Marine Quick Closing Valve Compliant With Marine Safety StandardsNegotiableMOQ: 1 Unit
-
GB/T5744-1993 Marine Quick Closing Valve, Flange Connection Type ANSINegotiableMOQ: 1 Unit
-
IS F7399 Bronze Pneumatic Quick Closing Valve JIS B2220 5K 10K Flange Marine Emergency Fuel Oil Shut Off ValveNegotiableMOQ: 20 Units
-
JIS F7399 Quick Closing Valve With Pneumatic Actuator, 10 Bar Working PressureNegotiableMOQ: 20 Units
As a specialized manufacturer with ISO9001 certified production processes, Shanghai Zhibang Valve Manufacture Co., Ltd. is committed to providing reliable and compliant fluid control solutions for the global marine industry. Our GB/T5744-1993 Marine Quick Closing Valve, Pressure Rating PN16, is engineered to meet the stringent safety requirements of shipboard applications, offering rapid isolation of pipelines in emergency situations. This valve is a critical safety component designed to protect personnel, equipment, and the marine environment by ensuring immediate shutdown of fuel, oil, or other hazardous fluid lines. With a focus on durability and performance, we supply these valves to markets worldwide, including North America, Southeast Asia, Europe, and Africa. Our expertise, backed by an annual export value reflecting consistent quality, ensures you receive a product built for the demanding conditions at sea.
The primary function of this marine quick closing valve is to provide fail-safe, rapid closure. It is typically installed in fuel oil lines, lubricating oil systems, and other critical service lines on vessels. In the event of a fire, pipe rupture, or other emergency, the valve can be closed remotely from a safe location or locally via a quick-acting mechanism, significantly reducing the risk of fire spread or environmental contamination. The design prioritizes reliability; the valve must operate flawlessly even after long periods of inactivity.
Key Design Features and Technical Advantages:
- Rapid Closure Mechanism: The valve is designed for closure within seconds, a crucial factor for emergency response. The lever-operated or pneumatically actuated system ensures positive and immediate shut-off.
- Robust Construction for Marine Environment: Manufactured from materials like bronze, cast steel, or stainless steel 316, the valve offers excellent corrosion resistance against saltwater, humid air, and marine atmospheres.
- Compliance with Marine Standards: Conformity to the Chinese national standard GB/T5744-1993, which aligns with general marine safety principles, ensures the valve meets specific design, testing, and performance criteria for marine use.
- Pressure Integrity: With a pressure rating of PN16 (16 bar), the valve is suitable for a wide range of shipboard system pressures, maintaining a tight seal under normal and emergency conditions.
- Bi-Directional Flow and Seal: The valve is designed to seal effectively regardless of flow direction, providing installation flexibility within the piping system.
- Visual Position Indicator: A clear open/closed position indicator is often integrated, allowing for immediate visual confirmation of the valve's status from a distance.
Technical Specifications Overview:
| Parameter | Specification |
| Design Standard | GB/T5744-1993 |
| Pressure Rating | PN16 (16 bar) |
| Nominal Diameter (DN) | Range: DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300 |
| Main Body Material | Bronze (C83600), Cast Steel (WCB), Stainless Steel 316 (CF8M) |
| Seat & Seal Material | PTFE (Standard), Metal Seat (for high-temp) |
| Connection Type | Flanged (ASME B16.5, DIN, JIS, GB), Threaded (NPT, BSPT, BSPP) |
| Operating Temperature | -20°C to 120°C (Standard PTFE seat); Higher ranges available with metal seats |
| Actuation Method | Manual Quick-Acting Lever, Pneumatic Actuator (Optional), Remote Cable Pull Station (Optional) |
| Fire Safe Design | Features to maintain sealing capability in fire conditions are incorporated. |
Benefits for Ship Owners, Operators, and Shipyards:
- Enhanced Safety Compliance: Installing certified quick closing valves helps vessels comply with international safety conventions (like SOLAS) and classification society rules (e.g., ABS, DNV, LR, BV), facilitating surveys and certifications.
- Risk Mitigation: Directly reduces the potential severity of engine room fires or spills by allowing for the swift isolation of fuel sources.
- Operational Reliability: The simple, robust mechanical design minimizes the risk of failure, requiring minimal maintenance while providing long service life even in harsh conditions.
- Cost-Effective Protection: Acts as a critical, relatively low-cost insurance policy against potentially catastrophic incidents, protecting far more valuable assets.
- Global Supply Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery and logistical support for global projects and vessel repairs.
Shanghai Zhibang Valve's dedication to quality is underscored by our ISO9001 certification, which governs our manufacturing and quality control processes from raw material inspection to final testing. Since our establishment, we have built a reputation for supplying dependable marine valves to a diverse global clientele across six continents. Our annual export volume is a testament to the trust placed in our products by shipyards and marine operators worldwide. When you choose our GB/T5744-1993 Marine Quick Closing Valve, you are not just purchasing a component; you are investing in a verified safety solution backed by a manufacturer with a proven track record in international marine supply. For detailed quotations, specific material certifications, or to discuss custom requirements for your fleet or newbuild project, contact our technical sales team today to ensure your vessels are equipped with reliable, compliant safety valves.
Frequently Asked Questions (FAQ)
-
Q: What is the main purpose of this quick closing valve on a ship?
A: Its primary purpose is safety. It allows for the rapid remote or local shutdown of flammable or hazardous fluid lines (like fuel oil) in emergencies such as fire or major leakage, preventing escalation and protecting the vessel and crew. -
Q: How does the "quick closing" mechanism work?
A: Typically, it uses a spring-assisted or weighted lever system. In an emergency, a pull wire/cable, remote pneumatic signal, or manual lever action releases the mechanism, allowing a spring or gravity to slam the valve disc onto the seat within seconds, achieving immediate shut-off. -
Q: Is the GB/T5744-1993 standard accepted by international classification societies?
A: While major classification societies (ABS, DNV, etc.) have their own rules, valves manufactured to GB/T5744-1993 are widely accepted in the international market, especially when supplemented with specific material and performance test certificates. It is always advised to confirm with your specific class surveyor. -
Q: Can this valve be used for services other than fuel oil?
A: Yes. While common for fuel, it can be specified for other critical services requiring emergency isolation, such as lubricating oil, thermal oil lines, or certain chemical lines, provided the materials are compatible with the fluid. -
Q: What is the difference between a normal valve and a quick closing valve?
A: A standard valve (like a gate or globe valve) is for routine operational flow control and is closed slowly. A quick closing valve is specifically designed and tested for rapid, fail-safe closure in an emergency, often with remote actuation capabilities. -
Q: What maintenance does this valve require?
A: Maintenance is minimal but crucial. It involves periodic operational testing (as per safety management systems) to ensure free movement, checking linkage and cables for corrosion, and verifying the seal integrity. The manufacturer provides maintenance guidelines. -
Q: Are pneumatic actuators available for remote operation?
A> Yes, pneumatic actuators are a common and available option. They allow the valve to be closed from a remote, safe location (like the bridge or a fire control station) by pressing a button that vents air pressure from the actuator. -
Q: Do you provide documentation for class approval?
A> We provide standard documentation including material test reports, certificate of conformity, and product data sheets. Specific documentation required for a particular classification society can be discussed and arranged upon request.
Send Inquiry to This Supplier
You May Also Like
-
Remote Controlled Pneumatic Marine Valve JIS F7399 for Emergency ShutdownNegotiableMOQ: 20 Units
-
Pneumatic Marine Quick Closing Valve JIS F7399 Compliant for Shipboard Fuel LinesNegotiableMOQ: 20 Units
-
JIS F7399 Valve With Mill Test Report, Pneumatic Marine Quick Closing TypeNegotiableMOQ: 20 Units
-
JIS F7399 Certified Quick Closing Valve, Pneumatic Actuated for Marine Engine RoomsNegotiableMOQ: 20 Units
-
316 Stainless Steel Pneumatic Quick Closing Valve Compliant With JIS F7399NegotiableMOQ: 20 Units
-
Pneumatic Quick Closing Valve for Marine Fuel Oil Systems, JIS F7399 StandardNegotiableMOQ: 20 Units
-
JIS F7399 Quick Closing Valve for Marine Applications, Pneumatic Operation With Manual OverrideNegotiableMOQ: 20 Units
-
Pneumatic Quick Closing Valve JIS F7399 for Marine Boiler Fuel Supply ProtectionNegotiableMOQ: 20 Units
-
JIS F7399 Bronze Manual Quick Closing Valve JIS B2220 5K 10K Flange Marine Fuel Oil Emergency Shut Off ValveNegotiableMOQ: 1 Unit
-
IS F7399 Bronze Manual Quick Closing Valve, 1/2 Inch NPT PortNegotiableMOQ: 1 Unit
