Best Solenoid Valves for Marine Automation

Marine automation has revolutionized the shipping industry, making operations more efficient, reliable, and safe. One essential component in marine automation is the solenoid valve, which controls the flow of liquids and gases in various systems such as ballast control, fuel management, and cooling systems. Choosing the best solenoid valve for marine applications ensures long-term performance and minimal maintenance. In this guide, we will explore the best solenoid valves for marine automation, their features, benefits, and key factors to consider when making a selection.

What is a Solenoid Valve?

A solenoid valve is an electromechanical device that controls the flow of liquids or gases using an electric coil. When energized, the coil creates a magnetic field that moves the valve mechanism, allowing or blocking fluid flow. Solenoid valves are widely used in marine automation for their reliability, quick response, and ease of integration into automated systems.

Types of Solenoid Valves

Solenoid valves come in different types based on their function and operation:

Direct-Acting Solenoid Valves – Suitable for low-pressure applications, as they do not require external pressure to operate.

Pilot-Operated Solenoid Valves – Ideal for high-pressure systems, using system pressure to assist in valve operation.

Normally Open (NO) Valves – Stay open when not energized and close when powered.

Normally Closed (NC) Valves – Remain closed when not powered and open when energized.

Two-Way Solenoid Valves – Control flow between one inlet and one outlet.

Three-Way Solenoid Valves – Direct fluid between two different paths, commonly used in pneumatic systems.

Four-Way Solenoid Valves – Used for complex hydraulic and pneumatic systems.

Best Solenoid Valves for Marine Automation

1. Parker Hannifin Marine Solenoid Valves

Features:

• Made from corrosion-resistant stainless steel or brass.
• Available in both direct-acting and pilot-operated versions.
• IP67-rated for water and dust resistance.
• Suitable for fuel control, water management, and hydraulic systems.

Benefits:

• High durability in harsh marine environments.
• Fast response time for efficient operation.
• Low power consumption, ideal for shipboard systems.

2. ASCO RedHat Solenoid Valves

Features:

• Designed for high-pressure and high-temperature applications.
• Constructed from marine-grade stainless steel.
• Compatible with water, fuel, and hydraulic fluids.
• Explosion-proof models available for hazardous environments.

Benefits:

• Reliable performance in extreme conditions.
• Long lifespan with minimal maintenance.
• Suitable for automated fire suppression and fuel systems.

3. Danfoss EV220B Solenoid Valves

Features:

• Wide operating pressure range.
• Built-in filter for preventing debris blockage.
• Available in normally closed and normally open configurations.
• Designed for seawater and fuel applications.

Benefits:

• Resistant to corrosion and wear.
• High flow capacity with minimal pressure drop.
• Easy installation and maintenance.

4. Burkert 6281 Solenoid Valves

Features:

• High-flow capacity with robust brass or stainless steel construction.
• Available in 12V, 24V, 110V, and 220V versions.
• IP65-rated for marine environments.
• Suitable for ballast water treatment and fuel transfer.

Benefits:

• Long service life with minimal wear.
• Energy-efficient operation.
• Versatile applications in marine automation.

5. Norgren Marine Solenoid Valves

Features:

• Designed specifically for marine and offshore applications.
• ATEX-certified for use in explosive environments.
• Available in multiple voltage options.
• Corrosion-resistant body for seawater exposure.

Benefits:

• High reliability in shipboard systems.
• Low maintenance requirements.
• Suitable for hydraulic and pneumatic applications.

Key Factors to Consider When Choosing a Marine Solenoid Valve

1. Material Selection

Marine environments expose solenoid valves to saltwater, humidity, and harsh chemicals. The best materials for marine solenoid valves include:

Stainless Steel – Offers excellent corrosion resistance.

Brass – Suitable for freshwater and fuel systems.

Bronze – Commonly used in marine applications due to its anti-corrosion properties.

Plastic (PVC, PTFE) – Resistant to chemical corrosion and lightweight.

2. Voltage and Power Requirements

Marine solenoid valves operate on different voltages, including 12V DC, 24V DC, 110V AC, and 220V AC. Low-power consumption models help reduce the electrical load on marine automation systems.

3. Pressure and Flow Rate

Selecting the right pressure and flow rate ensures efficient system performance. Consider:

Operating Pressure Range – Ensure the valve can withstand the system's pressure.  

Flow Rate (Cv Value) – Determines how much fluid passes through the valve per unit time.

4. Environmental Protection (IP Rating)

Marine environments require solenoid valves with high IP ratings for dust and water resistance. Look for valves with IP65, IP67, or IP69K ratings.

5. Response Time and Duty Cycle

The response speed of a solenoid valve affects overall system efficiency. Some applications require fast response times (e.g., fuel injection), while others need continuous operation (100% duty cycle).

6. Certifications and Compliance

For marine applications, solenoid valves must meet international safety and quality standards, including:

• DNV (Det Norske Veritas)
• ABS (American Bureau of Shipping)
• Lloyd’s Register
• ISO 9001 and CE Marking

Applications of Solenoid Valves in Marine Automation

1. Ballast Water Management

• Solenoid valves control the intake and discharge of ballast water to maintain vessel stability.

2. Fuel Control and Injection

• Solenoid valves regulate fuel flow in diesel engines for optimized combustion and reduced emissions.

3. Cooling and Refrigeration

• Solenoid valves help control coolant circulation, ensuring proper engine cooling and refrigeration system efficiency.

4. Fire Suppression Systems

• Solenoid valves manage the release of firefighting agents like water, foam, or gas in fire suppression systems.

5. Hydraulic and Pneumatic Control

• Used in winches, cranes, and steering systems, solenoid valves control hydraulic and pneumatic operations on ships.

Conclusion

Choosing the best solenoid valve for marine automation requires careful consideration of material, voltage, pressure, and environmental protection. Top brands like Parker, ASCO, Danfoss, Burkert, and Norgren offer high-quality solenoid valves designed for marine environments. Investing in the right solenoid valve improves the efficiency, safety, and reliability of shipboard systems. Regular maintenance ensures long-term performance, reducing the risk of failures and downtime. By understanding the key factors and applications, you can make an informed decision when selecting a solenoid valve for your marine automation needs.