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Home > Industrial Equipment & Components > Valve > Butterfly Valve > Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating thumbnail-3

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating thumbnail-4

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating thumbnail-5

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating photo-1

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating photo-2

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating photo-3

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating photo-4

Pneumatic Actuated Marine Ball Valve CB/T3191, DN15-DN200, 1.6-6.4MPa Pressure Rating photo-5

Product Spotlights

CB/T3191 marine-standard pneumatic ball valve for DN15-DN200, 1.6-6.4MPa systems. Features reliable pneumatic actuation, durable marine-grade materials (carbon/stainless steel), and optional fire-safe design. Ensures automated, tight shut-off control for fuel, ballast, cooling, and cargo lines on ships and offshore platforms, enhancing safety and operational efficiency.

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

Key Specifications

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Application:

Other, Marine and offshore piping systems

Product Standard:

CB/T3191 Marine Standard

Valve Type:

Pneumatic Actuated Ball Valve

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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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Application Other, Marine and offshore piping systems

Product Standard CB/T3191 Marine Standard

Valve Type Pneumatic Actuated Ball Valve

Size Range DN15 to DN200

Pressure Rating 1.6 MPa to 6.4 MPa

Actuator Type Double-acting or Single-acting Pneumatic

Body Material Carbon Steel, Stainless Steel, or other alloys

Seat Material PTFE, Reinforced PTFE, or Metal

Connection Type Flanged, Threaded, or Welded

Operation Mode On/Off or Modulating control

As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance fluid control solutions for demanding global markets. Our Pneumatic Actuated Marine Ball Valve designed per CB/T3191 standard represents our commitment to reliability, safety, and efficiency in maritime applications. Engineered to withstand harsh marine environments, this valve offers precise on/off or modulating control for critical shipboard systems, from fuel lines and ballast systems to cooling water and cargo handling. With an annual export value reflecting our growing international trust, we deliver valves that meet the rigorous demands of shipbuilders, shipowners, and offshore operators worldwide.

This valve combines a robust quarter-turn ball valve with a reliable pneumatic actuator, creating an automated solution ideal for remote or hazardous locations onboard. The design ensures quick operation, tight shut-off, and long service life, contributing to reduced maintenance costs and enhanced operational safety. Below are the key features and technical specifications that make our valve a preferred choice.

Core Product Features & Technical Advantages:

Marine-Grade Construction: Manufactured in compliance with the Chinese CB/T3191 standard for ship valves, ensuring suitability for marine and offshore service.
Wide Size & Pressure Range: Available in sizes from DN15 to DN200 and pressure ratings from 1.6 MPa to 6.4 MPa, offering flexibility for various pipeline requirements.
Reliable Pneumatic Actuation: Equipped with double-acting or single-acting pneumatic actuators for dependable automation. Options include solenoid valves, limit switches, and positioners for complete control packages.
Durable Material Selection: Valve body is typically crafted from carbon steel (WCB), stainless steel (CF8/CF8M), or other alloys. Seat materials include PTFE for standard services or metal for high-temperature/pressure applications.
Excellent Sealing Performance: The floating or trunnion-mounted ball design with resilient or metal seats ensures bubble-tight shut-off, minimizing leakage risks.
Low Torque & Easy Operation: The full port or reduced port design minimizes pressure drop, and the pneumatic actuator provides high torque output for smooth, effortless operation even under high differential pressure.
Corrosion Resistance: Surfaces are treated with anti-corrosion coatings like epoxy or galvanization, and stainless steel options are available for highly corrosive fluids (e.g., seawater).
Fire-Safe Design Option: Available with fire-safe features per API 607/6FA standards, where the seat can maintain sealing integrity in case of fire.
Versatile End Connections: Offered with flanged (RF, RTJ), threaded (NPT, BSP), or welded ends to suit different piping system designs.

Technical Specifications Table:

Parameter	Specification / Options
Design Standard	CB/T3191 (Marine), also can be designed to API, DIN, JIS standards
Size Range (Nominal Diameter)	DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200
Pressure Rating (PN)	PN16 (1.6MPa), PN25 (2.5MPa), PN40 (4.0MPa), PN64 (6.4MPa)
Body Material	Carbon Steel (WCB), Stainless Steel 304/316 (CF8/CF8M), Duplex Steel, etc.
Ball & Stem Material	Stainless Steel, Chrome Plated Carbon Steel
Seat Material	PTFE, Reinforced PTFE, Nylon, PEEK, Metal (Stainless Steel)
Actuator Type	Pneumatic Double-acting or Spring Return (Single-acting)
Actuator Air Pressure	Standard: 4-7 bar (0.4-0.7 MPa). Other ranges customizable.
End Connection	Flanged (RF, RTJ), Threaded (NPT, BSPT, BSPP), Socket Weld, Butt Weld
Operating Temperature	Standard: -20°C to +180°C (with PTFE seat). Extended ranges available.
Flow Characteristic	Quick Opening (for on/off), Approximate Equal Percentage (for V-port modulating ball valves)

Benefits for Your Operations:

Enhanced Safety & Reliability: Automated operation reduces manual intervention in dangerous areas, and the robust design ensures fail-safe performance.
Improved Process Efficiency: Fast opening/closing speeds enable rapid system response, optimizing cycle times for loading/unloading or system switching.
Reduced Lifetime Cost: Durable materials and construction lower maintenance frequency and replacement needs, while automation can reduce labor costs.
System Integration Ready: Compatible with shipboard PLC and control systems via accessory limit switches and positioners, enabling centralized monitoring.
Global Compliance: Designed to marine standards, facilitating approval processes for new builds and retrofits in international shipyards.

Backed by our ISO9001-certified manufacturing processes and nearly a decade of industry experience since 2016, Shanghai Zhibang guarantees consistent product quality and performance. Our valves are trusted across diverse global markets, from North America and Europe to Southeast Asia and Africa, supported by an annual export value of US$1-1.5 Million. We offer flexible shipment from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to your project site. Choose our Pneumatic Actuated Marine Ball Valve for a reliable, automated solution that stands up to the challenges of the marine environment. Contact us today for a detailed quotation or to discuss your specific application requirements.

Frequently Asked Questions (FAQ):

Q: What does "CB/T3191" mean for this valve?
A: CB/T3191 is a Chinese national professional standard specifically for "Marine Metallic Valves." It outlines design, material, manufacturing, testing, and inspection requirements for valves used on ships and offshore platforms. Valves conforming to this standard are recognized as suitable for marine service.
Q: Can this pneumatic actuated ball valve be used for seawater service?
A: Yes, it is suitable for seawater. We recommend selecting a body material like Stainless Steel 316 (CF8M) or Duplex Stainless Steel for superior corrosion resistance. The actuator housing is also typically coated or made of corrosion-resistant materials.
Q: What is the difference between double-acting and single-acting (spring return) pneumatic actuators?
A: A double-acting actuator uses air pressure to open and close the valve. A single-acting (spring return) actuator uses air to open (or close) and a built-in spring to automatically return the valve to its fail-safe position (open or closed) upon air supply loss, which is critical for safety applications.
Q: What accessories are typically needed for a complete automated valve package?
A: A complete package often includes the pneumatic actuator, a solenoid valve (for electrical control), limit switches (for valve position feedback), a positioner (for precise modulating control), and an air filter regulator. These can be supplied as per your request.
Q: Is the valve fire-safe?
A: Fire-safe design is an optional feature. We can provide valves with fire-safe seats and seals that meet recognized standards like API 607/6FA, which are essential for applications involving flammable fluids.
Q: What is the typical lead time for an order?
A: Lead time depends on order quantity, size, material, and configuration. For standard specifications, lead time is generally 4-8 weeks. We provide a precise schedule upon receipt of your detailed inquiry.
Q: Do you provide custom painting or marking per shipyard specifications?
A: Yes, we offer customization for surface coating colors (e.g., specific RAL codes) and valve tagging/nameplate marking according to client or shipyard specifications. Please provide your requirements during the inquiry.
Q: What after-sales support do you offer?
A: We provide technical documentation (drawings, manuals, test reports), product warranty, and spare parts support. Our technical team is available for installation guidance and troubleshooting consultation.