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Home > Industrial Equipment & Components > Valve > Butterfly Valve > CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPa

CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPa

CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPa thumbnail-3

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CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPa photo-3

CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPa photo-4

CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPa photo-5

Product Spotlights

CB/T3191 approved marine air valve for regulatory compliance. Features manual operation for reliable, power-free control. Constructed with a durable cast iron body and tight-sealing rubber for longevity in marine environments. Suitable for a wide pressure range (PN1.0-4.0MPa). Ideal for shipboard air system isolation and safety.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

CB/T3191 Approved

Application:

Other, Marine and Shipboard Systems

Operation Type:

Manual Operation

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Standard CB/T3191 Approved

Application Other, Marine and Shipboard Systems

Operation Type Manual Operation

Body Material Cast Iron

Seal Material Rubber Seal

Pressure Rating PN1.0-4.0MPa

Connection Type Flanged (Common)

Temperature Range Standard ambient to 80°C

Flow Characteristic On/Off (Isolation)

Valve Type Globe or Gate Valve

As a leading manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our CB/T3191 Approved Marine Air Valve. Designed for manual operation with a robust cast iron body and reliable rubber seal, this valve is engineered to meet the rigorous demands of marine applications, ensuring safe and efficient control of air systems on board vessels. Our commitment to quality, backed by ISO9001 certification, and our extensive export experience to global markets including North America, Southeast Asia, and Europe, make us a trusted partner for your marine valve needs. This product embodies durability, compliance, and performance, offering a critical solution for shipboard air piping where pressure management is paramount.

Product Features and Technical Advantages:

CB/T3191 Certification: Manufactured in strict compliance with the Chinese shipbuilding standard CB/T3191, ensuring the valve meets specific requirements for marine air systems regarding design, materials, and performance.
Robust Construction: The valve body is crafted from high-grade cast iron, providing excellent strength and corrosion resistance for long service life in harsh marine environments.
Reliable Sealing: Equipped with a high-quality rubber seal, the valve ensures a tight, leak-proof closure, which is critical for maintaining system pressure and safety.
Manual Operation Simplicity: Features a user-friendly manual handwheel or lever operation, allowing for precise and direct control without the need for external power sources, enhancing reliability and ease of maintenance.
Wide Pressure Range: Rated for pressures from PN1.0 to PN4.0 MPa, making it versatile for various air system pressures found on different types of vessels, from low-pressure ventilation to higher-pressure control lines.
Versatile Application: Primarily designed for marine use, it is suitable for air pipelines in engine rooms, ballast systems, ventilation ducts, and other shipboard applications requiring on/off isolation.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	CB/T3191
Operation Mode	Manual (Handwheel/Lever)
Body Material	Cast Iron
Seal Material	Rubber (NBR or EPDM typical)
Pressure Rating (PN)	1.0, 1.6, 2.5, 4.0 MPa (Selectable)
Connection Type	Flanged (Standard sizes available upon request)
Temperature Range	-20°C to +80°C (dependent on seal material)
Flow Direction	Bi-directional (typically)
Applicable Medium	Air, Inert Gases
Surface Treatment	Anti-rust coating (epoxy or paint)

Benefits to Our Clients:

Enhanced Safety & Compliance: Using a CB/T3191 approved valve helps shipyards and vessel operators meet regulatory standards, reducing compliance risks and ensuring crew and asset safety.
Reduced Maintenance & Downtime: The durable cast iron body and reliable rubber seal minimize wear and failure, leading to lower maintenance costs and increased operational uptime for your vessels.
Cost-Effective Solution: Manual operation eliminates the need for costly actuators and control systems, while the robust design ensures a long lifespan, offering excellent total cost of ownership.
Global Supply Reliability: With annual exports valued between US$1-1.5 million and major shipment ports like Shanghai and Guangzhou, we ensure timely and reliable delivery to your location worldwide.

Shanghai Zhibang Valve has established itself as a reliable manufacturer since 2016, serving a diverse clientele across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Mid East, and Europe. Our ISO9001 certification underpins our commitment to consistent quality in every valve we produce. This CB/T3191 Marine Air Valve is a product of this rigorous process, designed to deliver unwavering performance where it matters most. For shipbuilders, repair yards, and marine equipment suppliers seeking a compliant, durable, and manually operated air valve, this product represents a smart investment in quality and reliability. Contact us today to discuss your specific requirements or to request a quotation.

Frequently Asked Questions (FAQ):

Q: What does CB/T3191 approval mean for this valve?
A: CB/T3191 is a Chinese national standard specifically for shipbuilding fittings. Approval indicates the valve is designed, manufactured, and tested to meet the safety, material, and performance criteria required for use in marine air systems, which is often a prerequisite for classification society approvals.
Q: Is this valve suitable for saltwater or seawater applications?
A: The valve is designed for air systems. While the cast iron body has corrosion resistance, direct and continuous exposure to seawater is not its primary intent. The external anti-rust coating provides protection against the marine atmosphere. For seawater service, specific material grades would be recommended.
Q: Can the pressure rating be customized?
A: Yes. The standard product covers PN1.0 to PN4.0 MPa. We can provide valves tailored to your specific pressure requirement within this range. Please specify your needed PN rating when inquiring.
Q: What types of rubber are used for the seal, and are alternatives available?
A: Standard seals are typically made from Nitrile Rubber (NBR) or EPDM, suitable for air and general service. For specific media or temperature conditions, alternative seal materials like Viton (FKM) can be available upon request.
Q: Are flanges included, and to which standard are they made?
A: Flanges are integral to the valve body. They are commonly manufactured to standards like GB, JIS, or ANSI. The specific flange standard and drilling pattern can be customized based on your piping system requirements.
Q: Do you offer actuated versions of this valve?
A: This specific listing is for manual operation. However, as a manufacturer, we can provide options for pneumatic or electric actuators. Please contact us to discuss your automation needs.
Q: What is the lead time for an order?
A: Lead time depends on order quantity and specific customization. For standard configurations, we generally maintain stock or offer competitive production schedules. We provide clear timelines upon order confirmation.
Q: What are the packaging and shipping terms?
A: Valves are securely packaged in wooden cases for export protection. We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, and can work with various international trade terms (FOB, CIF, etc.) as required.