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Home > Industrial Equipment & Components > Valve > Butterfly Valve > Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping

Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping

Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping thumbnail-3

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Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping thumbnail-5

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Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping photo-3

Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping photo-4

Marine Butterfly Valve With Standard Actuator Interface for Seawater Cooling System Piping photo-5

Product Spotlights

Engineered for harsh seawater environments, this marine butterfly valve features a standardized ISO 5211 actuator interface for easy automation. Constructed with corrosion-resistant materials like coated ductile iron or stainless steel and durable EPDM/PTFE seats, it ensures reliable flow control in cooling systems. It reduces maintenance, offers global parts compatibility, and is backed by ISO9001 manufacturing, providing a robust and cost-effective solution for shipbuilders and operators worldwide.

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

Key Specifications

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Application:

Other, Seawater cooling systems

Material:

Corrosion-resistant body materials (e.g., Ductile Iron, Stainless Steel)

Connection Type:

Wafer, Lug, or Flanged

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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, Seawater cooling systems

Material Corrosion-resistant body materials (e.g., Ductile Iron, Stainless Steel)

Connection Type Wafer, Lug, or Flanged

Actuator Interface Standardized ISO 5211 mounting pad

Seat Material EPDM, NBR, or PTFE for seawater compatibility

Disc Material Stainless Steel, Nickel-plated, or Coated

Pressure Rating PN10, PN16, or ANSI Class 150

Size Range DN50 to DN600 (2“ to 24“)

Operation Manual gear, pneumatic, electric actuator options

As a dedicated manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for demanding marine environments. Our Marine Butterfly Valve with Standard Actuator Interface is engineered specifically for the harsh conditions of seawater cooling system piping. We understand that system reliability is paramount onboard vessels, and our valves are designed to deliver consistent performance, ease of maintenance, and long service life, directly contributing to operational efficiency and safety. Backed by our ISO9001-certified quality management system and an annual export value reflecting our global trust, we are committed to supplying valves that meet the rigorous standards of the international maritime industry.

This valve is a critical component for managing the flow of seawater in cooling circuits for main engines, auxiliary generators, and other heat exchangers. Its design prioritizes corrosion resistance, operational reliability, and compatibility with automated control systems.

Superior Corrosion Resistance: The valve body is constructed from materials specifically chosen to withstand prolonged exposure to seawater. Common options include ductile iron with epoxy coating or stainless steel (CF8M/316). The disc is typically made of stainless steel or nickel-plated carbon steel to prevent galvanic corrosion and biofouling.
Standardized Actuator Interface (ISO 5211): Featuring a standardized mounting pad, this valve allows for easy and flexible integration with a wide range of pneumatic, electric, or hydraulic actuators from different manufacturers. This simplifies procurement, inventory management, and retrofitting projects.
Robust Seat Design for Seawater: The seat material is selected for excellent sealing performance and durability in seawater. EPDM or NBR is common for general service, while PTFE (Teflon) offers superior chemical resistance and a wider temperature range, ensuring a tight seal against debris and sand often present in seawater.
Optimized Flow Characteristics: The disc profile is designed to minimize pressure drop across the valve when fully open, promoting efficient cooling water flow and reducing pump energy consumption.
Versatile Connection Options: Available in wafer, lug, and double-flanged designs to suit various piping layouts and pressure class requirements within the seawater system.
Reliable Operation: Can be supplied with a manual lever, gear operator, or pre-mounted with an actuator for automated control, fitting seamlessly into modern ship management systems.

Below is a summary of typical technical specifications:

Parameter	Specification / Option
Size Range	DN50 (2") to DN600 (24")
Pressure Rating	PN10, PN16, ANSI Class 150
Body Material	Ductile Iron (Epoxy Coated), Stainless Steel CF8/CF8M, Aluminum Bronze
Disc Material	Stainless Steel 316, Nickel-Plated Ductile Iron, Aluminum Bronze
Seat Material	EPDM, NBR, PTFE, HNBR (Customizable)
Stem Material	Stainless Steel 304/316, Monel
Actuator Mounting	ISO 5211 Standard Pad
Connection Type	Wafer, Lug, Double Flange (RF, FF)
Temperature Range	-10°C to +120°C (depends on seat material)
Operation	Manual Lever, Worm Gear, Pneumatic Actuator, Electric Actuator

The advantages of choosing our Marine Butterfly Valve translate into direct benefits for ship owners, operators, and shipyards:

Reduced Maintenance & Downtime: Corrosion-resistant construction and durable seat materials extend service intervals and enhance system availability.
Enhanced System Flexibility: The standard actuator interface allows for easy automation upgrades or actuator replacement without modifying the valve or piping.
Global Supply Chain Compatibility: Standardized design ensures parts and actuator compatibility, simplifying sourcing for global fleets.
Improved Safety: Reliable sealing and operation contribute to the overall integrity and safety of the vessel's critical cooling system.
Cost-Effectiveness: Competitive pricing from a direct manufacturer, combined with long service life, offers a favorable total cost of ownership.

Shanghai Zhibang Valve has established a solid reputation since 2016, serving a diverse global clientele across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics to shipyards and marine equipment suppliers worldwide. Our adherence to the ISO9001 quality standard is a testament to our commitment to consistent manufacturing excellence. This valve embodies our practical expertise in marine applications, offering a reliable, standardized, and cost-efficient solution for seawater cooling systems. We invite you to contact us for detailed quotations, technical drawings, or to discuss custom requirements for your specific project.

Frequently Asked Questions (FAQ):

Q: Why is a standard actuator interface important for marine valves?
A: It ensures interchangeability and simplifies procurement. Ship operators can source actuators separately or use existing stock, reducing lead times and inventory costs for maintenance and new builds.
Q: What is the most suitable seat material for tropical or polluted seawater?
A: For warm waters or where hydrocarbons may be present, PTFE (Teflon) seats are often recommended due to their excellent chemical resistance and anti-fouling properties. HNBR is another robust option for a wider temperature range.
Q: Can this valve be used for both inlet and outlet sides of a seawater cooling pump?
A: Yes, it is suitable for both suction and discharge lines. However, for pump discharge (higher pressure), confirming the pressure rating (PN16/ANSI 150) is crucial. The valve's bi-directional flow design is typically standard.
Q: Are these valves suitable for automated remote control from the ship's control room?
A: Absolutely. When paired with a pneumatic or electric actuator equipped with positioners and feedback signals, these valves can be fully integrated into a centralized control system for remote operation and monitoring.
Q: What are the delivery lead times for standard sizes?
A: Standard sizes (DN50-DN300) typically have shorter lead times. Specific timelines can be provided upon request, as we maintain strategic inventory and efficient production scheduling.
Q: Do you provide valves with actuators already mounted and tested?
A: Yes, we offer a complete package—valve, actuator, and accessories—assembled, tested, and ready for installation. This provides a single-source responsibility and saves installation time at the shipyard.
Q: How does the epoxy coating on ductile iron bodies protect against corrosion?
A: The high-performance epoxy coating forms a thick, impermeable barrier that isolates the iron from the seawater electrolyte, effectively preventing corrosion and extending the valve's lifespan significantly.
Q: What documentation is provided with the valves?
A: Standard documentation includes a material test certificate, hydrostatic test report, and general arrangement drawings. Additional certifications can be provided upon request.