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Home > Industrial Equipment & Components > Valve > Other Valves & Parts > GB/T5744-1993 Marine Quick Closing Valve With Mill Test Report and Warranty

GB/T5744-1993 Marine Quick Closing Valve With Mill Test Report and Warranty

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Product Spotlights

GB/T5744-1993 compliant marine quick-closing valve for emergency pipeline isolation. Features rapid shut-off, robust cast steel/stainless steel construction, and remote operation capability. Includes Mill Test Report for material traceability and a standard warranty. Ideal for enhancing safety in shipboard fuel, oil, and ballast systems.

Negotiable MOQ: 20 Units (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

GB/T5744-1993

Type:

Quick Closing Valve

Application:

Marine piping systems

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

shanghai

Delivery Detail:

7 days

Product Details
Company Profile
Contact Us

Standard GB/T5744-1993

Type Quick Closing Valve

Application Marine piping systems

Material Cast steel, stainless steel, bronze

Connection Type Flanged, threaded

Size Range DN15 to DN300 (1/2“ to 12“)

Pressure Rating PN10 to PN40 (Class 150 to Class 300)

Certification ISO9001 certified manufacturer

Warranty Standard warranty included

Documentation Mill Test Report provided

As a leading ISO9001 certified manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance marine valves for global shipping and offshore industries. Our GB/T5744-1993 Marine Quick Closing Valve is engineered to meet the stringent safety and operational demands of shipboard piping systems. With an annual export value exceeding US$1 million, we have proven our reliability to partners across North America, Southeast Asia, Europe, and beyond. This valve is a critical safety component, designed for rapid isolation of pipelines in emergency situations, thereby protecting vessels, cargo, and crew.

Core Features and Technical Advantages:

Rapid Emergency Response: The valve's quick-closing mechanism allows for near-instantaneous shut-off of fluid flow, a vital function for containing leaks, fires, or other hazards in marine environments.
Strict Compliance: Manufactured in full compliance with the Chinese national standard GB/T5744-1993, ensuring it meets recognized specifications for design, materials, and testing for marine use.
Robust Construction: Available in a range of durable materials including cast steel, stainless steel, and bronze to withstand corrosive seawater, high pressures, and harsh oceanic conditions.
Versatile Configurations: Offered in various sizes and connection types to integrate seamlessly into diverse shipboard systems for fuel, oil, water, and ballast lines.
Enhanced Safety & Control: Can be operated remotely or locally, providing flexibility for emergency protocols and ensuring crew safety by allowing closure from a safe distance.

Detailed Specifications:

Parameter	Specification / Options
Product Standard	GB/T5744-1993 (Marine quick-closing valve)
Valve Type	Quick Closing (Butterfly, Gate, or Globe type mechanisms)
Primary Application	Marine & Offshore piping systems (fuel, oil, water, ballast)
Body Material	Cast Steel (WCB), Stainless Steel (CF8/CF8M), Bronze
Connection Standards	Flanged (JIS, DIN, ANSI, GB), Threaded (NPT, BSP)
Size Range (Nominal)	DN15 - DN300 (1/2" - 12")
Pressure Rating	PN10, PN16, PN25, PN40 (Class 150, Class 300)
Operating Temperature	-20°C to +200°C (material dependent)
Actuation Method	Manual lever, pneumatic, hydraulic, or electric remote
Surface Treatment	Anticorrosive painting, epoxy coating, or galvanization

Benefits for Our Clients:

Regulatory Assurance: Using a GB/T5744-1993 compliant valve simplifies regulatory approval processes for shipyards and vessel operators, particularly in markets familiar with this standard.
Operational Reliability: The robust design and quality materials ensure long service life with minimal maintenance, reducing lifecycle costs and unplanned downtime.
Supply Chain Confidence: Each valve is supported by a comprehensive Mill Test Report (MTR) verifying material chemistry and mechanical properties, providing full traceability and quality assurance.
Risk Mitigation: The rapid-closing feature is a direct contribution to vessel safety management, helping to mitigate risks associated with piping system failures.
Global Logistics Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure efficient and flexible delivery to our main markets worldwide.

Trust and Commitment:
Shanghai Zhibang Valve backs every GB/T5744-1993 Marine Quick Closing Valve with a standard warranty and the credibility of our ISO9001 certification. Our decade-long presence in the industry and successful export track record to over a dozen global regions, including North America, Europe, and Southeast Asia, underscore our capability as a dependable manufacturer. We invite shipbuilders, marine engineers, and procurement specialists to consult with us for a valve solution that prioritizes safety, compliance, and performance. Contact us today to discuss your specific requirements and receive detailed product documentation.

Frequently Asked Questions (FAQ):

Q: What is the primary purpose of a quick-closing valve on a ship?
A: Its main purpose is emergency isolation. In case of a pipe rupture, fire, or other critical failure, the valve can be closed rapidly to stop the flow of flammable or hazardous fluids, preventing escalation and protecting the vessel.
Q: How does the GB/T5744-1993 standard benefit me as an international buyer?
A: GB/T5744-1993 is a well-established Chinese national standard specifically for marine quick-closing valves. It provides clear specifications for design, manufacturing, and testing, ensuring a baseline level of quality, safety, and interchangeability recognized in many maritime sectors.
Q: What is included in the Mill Test Report (MTR)?
A: The MTR is a certified document from the material mill. It typically includes the heat number, chemical composition analysis, mechanical property test results (tensile strength, yield strength, elongation), and heat treatment data, proving the raw material meets specified standards.
Q: Can this valve be customized for specific pressure ratings or connection standards?
A: Yes. While we offer standard ranges (e.g., PN16, PN40, ANSI Class 150/300), customization is available. You can specify pressure classes, flange dimensions (DIN, ANSI, JIS), or end connections to match your existing pipeline specifications.
Q: What types of actuation are available for remote operation?
A: To enable remote and quick closure, we offer pneumatic, hydraulic, and electric actuator options. The choice depends on your ship's available power sources (air, hydraulic fluid, electricity) and control system integration requirements.
Q: What materials are best suited for seawater service?
A: For superior corrosion resistance in seawater, we recommend stainless steel (grades like 316/316L) or bronze alloys. The specific grade can be selected based on the fluid media, temperature, and required service life.
Q: Do you provide installation guidance or after-sales support?
A> Yes. We provide basic installation manuals and dimensional drawings. Furthermore, our technical team is available for consultation. The standard warranty covers manufacturing defects, and we maintain a supply of common spare parts for support.
Q: What are your main shipping terms and lead times?
A: We typically ship FOB from our listed ports (Shanghai, Guangzhou, etc.). Lead times vary based on order quantity and customization level but are generally competitive. Exact terms and schedules are confirmed upon order placement.