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Home > Industrial Equipment & Components > Valve > Other Valves & Parts > GB/T5744-1993 Compliant Marine Quick Closing Valve for Bilge Systems

GB/T5744-1993 Compliant Marine Quick Closing Valve for Bilge Systems

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Product Spotlights

A marine safety-critical quick-closing valve fully compliant with GB/T5744-1993 standard for bilge systems. Ensures rapid emergency line isolation with robust bronze/stainless steel construction, reliable sealing, and clear visual indication. Manufactured under ISO9001, it enhances vessel safety, guarantees regulatory compliance, and reduces operational risk. Supported by global export experience from a dedicated manufacturer.

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

Key Specifications

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Standard Compliance:

GB/T5744-1993

Valve Type:

Quick Closing Valve

Application:

Marine Bilge Systems

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

shanghai

Delivery Detail:

7 days

Product Details
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Standard Compliance GB/T5744-1993

Valve Type Quick Closing Valve

Application Marine Bilge Systems

Material Bronze or Stainless Steel

Connection Type Flanged or Threaded

Operation Manual Quick-Acting

Pressure Rating PN16 or Customizable

Certification ISO9001 Quality Management

As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance marine components. Our GB/T5744-1993 Compliant Marine Quick Closing Valve for Bilge Systems is engineered to meet the stringent safety and operational demands of modern vessels. This valve is a critical safety device designed for rapid isolation of bilge lines, helping to protect the ship's stability and integrity in emergency situations. We combine rigorous manufacturing processes under our ISO9001 certification with a deep understanding of maritime applications to deliver reliable, compliant valves trusted by shipyards and fleet operators worldwide.

This quick-closing valve is meticulously designed for one primary purpose: to allow for the immediate shut-off of bilge system piping. In the event of damage or emergency, swift action is paramount. Our valve facilitates this through its quick-acting mechanism, which can be operated manually with minimal effort and time, a crucial feature for maintaining vessel safety and preventing uncontrolled flooding.

Key Features & Technical Advantages:

Rapid Emergency Response: The valve's design prioritizes speed. The closing mechanism is optimized for fast, positive shut-off, significantly reducing the time required to isolate a compromised bilge line compared to standard valves.
Full Compliance with GB/T5744-1993: Manufactured in strict accordance with the Chinese national standard "Quick-closing valves for ships," ensuring it meets the specific material, design, performance, and testing requirements mandated for marine safety equipment.
Robust Construction for Harsh Environments: Typically constructed from corrosion-resistant materials like bronze or stainless steel, the valve body and internal components withstand the corrosive marine atmosphere, bilge water, and operational pressures.
Reliable Sealing Performance: Features a high-integrity sealing system (such as a resilient seat) that ensures a tight, leak-proof closure even after repeated use, which is vital for maintaining the effectiveness of the bilge system isolation.
Clear Open/Close Indication: Often includes a visual position indicator (e.g., a handle position or flag) so crew members can instantly verify the valve's status, preventing operational errors.
Ease of Operation and Maintenance: Designed for straightforward manual operation. The mechanism is robust yet simple, facilitating easy routine checks and maintenance as part of the ship's safety schedule.

Technical Specifications & Options:

Parameter	Specification / Option
Applicable Standard	GB/T5744-1993
Nominal Diameter (DN)	Available in common sizes (e.g., DN25, DN32, DN40, DN50, DN65, DN80), customizable upon request
Pressure Rating (PN)	Typically PN16, other ratings available
Body Material	Bronze (C95800), Stainless Steel (CF8M/316), or as required
Connection Type	Flanged (according to GB, JIS, ANSI standards) or Threaded (NPT, BSP)
Operation Mode	Manual Quick-Acting Lever
Seat Material	Resilient material (e.g., NBR, EPDM) or Metal, depending on application
Temperature Range	Suitable for standard bilge water temperatures; specific range depends on seat material

Benefits for Our Clients:

Enhanced Vessel Safety: Provides a reliable, code-compliant solution for a critical safety system, contributing directly to the overall safety management plan of the ship.
Regulatory Compliance Assurance: Guarantees that the bilge system component meets the specific GB/T5744-1993 standard, simplifying regulatory approval and classification society surveys for vessels operating under relevant flag state requirements.
Reduced Operational Risk: The quick-closing capability minimizes the extent of potential flooding, protecting cargo, machinery, and the vessel's stability, thereby reducing financial and safety risks.
Durability & Low Lifetime Cost: Built with quality materials and precision, the valve offers long service life with minimal maintenance, providing excellent value over time.
Global Supply Support: With annual export values between US$1-1.5 million and shipment capabilities from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we reliably supply partners across diverse markets including North America, Europe, Southeast Asia, and Africa.

Shanghai Zhibang's commitment to quality is backed by our ISO9001 certification, ensuring consistent production standards for every valve we manufacture. Our experience serving a global clientele across five continents has given us deep insights into regional maritime requirements. Choosing our GB/T5744-1993 compliant quick-closing valve means selecting a product built with precision, tested for reliability, and supported by a manufacturer dedicated to maritime safety. We encourage shipbuilders, repair yards, and equipment suppliers to contact us for detailed specifications, competitive quotations, and to discuss how this essential safety component can be integrated into your projects.

Frequently Asked Questions (FAQ)

Q: What is the primary function of this quick-closing valve on a ship?
A: Its primary function is to provide a means for the rapid manual shut-off of a bilge suction line in an emergency, such as hull damage, to prevent excessive water ingress and help maintain the vessel's stability.
Q: Why is compliance with GB/T5744-1993 important?
A: GB/T5744-1993 is the Chinese national standard specifically for marine quick-closing valves. Compliance ensures the valve is designed, manufactured, and tested to meet defined safety, material, and performance criteria required for such critical equipment, which is often mandated by ship classification societies for vessels under certain registries.
Q: Can this valve be used in systems other than bilge systems?
A: While specifically designed and tested for bilge system applications per the standard, its quick-closing functionality may be suitable for other marine piping systems requiring rapid isolation. Please consult with our engineers to confirm suitability for your specific non-bilge application.
Q: What are the common material choices and which one should I select?
A: Common body materials include bronze (good general corrosion resistance) and stainless steel (superior resistance, especially in more aggressive environments). The choice depends on the specific bilge water chemistry, system design life, and budget. We can provide recommendations based on your operating conditions.
Q: Is the valve suitable for remote operation?
A: The standard product described is a manually operated valve designed for local, quick action. For systems requiring remote actuation, different valve types (e.g., remote-controlled solenoid or pneumatic valves) would be more appropriate. We offer a range of valve solutions and can advise on the best fit.
Q: What documentation is provided with the valve?
A: Typically, we provide a material certificate, a certificate of compliance stating conformity to GB/T5744-1993, and operational manuals. Test reports (such as pressure tests) are available upon request.
Q: Do you offer custom sizes or pressure ratings outside the standard range?
A: Yes, as a manufacturer, we have the capability to produce valves with custom nominal diameters, pressure ratings (PN), and connection standards to suit unique vessel designs or retrofit projects. Please provide your detailed requirements for a quotation.
Q: What is your typical lead time and packaging for export?
A: Lead times vary based on order quantity and specifications. Standard items may have shorter lead times. For export, valves are securely packaged in wooden cases or crates to withstand ocean freight, ensuring they arrive in perfect condition.