NAKAKITA SEISAKUSHO 6M/M NS691 SOLENOID 4 WAY VALVE

What is NAKAKITA SEISAKUSHO 6M/M NS691 Solenoid 4 Way Valve?

The NAKAKITA SEISAKUSHO 6M/M NS691 Solenoid 4 Way Valve is a precisely engineered directional control valve that finds extensive application in marine, industrial, and hydraulic automation systems. It is produced by Nakakita Seisakusho, an established Japanese organization famous for producing high-quality marine automation components. The valve is designed to direct the flow of fluids like air, oil, or water through an electrically driven solenoid actuator.

A 4-way valve refers to the fact that it contains four ports—usually pressure, exhaust, and two outlets—so it can regulate double-acting cylinders and reverse the direction of fluid. This makes it a critical element in applications where automated actuation and accurate fluid control are required.

Regardless of where it’s used in marine engine control systems, industrial equipment, or hydraulic automation panels, this valve provides smooth operation, low leakage, and durability.

Important Features

The Nakakita NS691 Solenoid 4 Way Valve is designed with reliability, precision, and durability in mind. Let’s have a look at its major features:

1. High-Quality Solenoid Mechanism

With a heavy-duty solenoid coil installed, the valve provides swift switching response and reliable performance even under harsh conditions.

2. 4-Way Configuration

4-way design enables it to regulate two flow paths at the same time, suitable for double-acting actuators or directional control in pneumatic/hydraulic systems.

3. Marine-Grade Construction

Made from corrosion-proof materials, it resists saline conditions and humidity, making it ideal for ship automation and marine engine control.

4. Compact & Efficient Design

Its compact structure makes it easy to install in tight control panels or automation enclosures, keeping system space efficient.

 5. Reliable Performance

Designed for non-stop duty, it provides stable flow control, negligible internal wear, and extended service life.

6. Electrical Compatibility

The solenoid coil has the ability to be used with common control voltages for smooth integration into existing automation circuits.

7. Safety and Precision

Manufactured to world marine standards, the NS691 provides safe operation combined with high accuracy valve positioning and switching.

Applications

NAKAKITA NS691 valve is adaptable and is used in marine, industrial, and hydraulic automation systems, particularly where the control of fluid direction is vital.

Following are some typical uses:

1. Marine Automation Systems

It is widely used in ship control systems, ballast control, fuel oil systems, and engine room automation, providing precise control of fluid flow on ships.

2. Industrial Machinery

Used in pneumatic and hydraulic equipment for actuating cylinders, machine control, and automatic process systems.

 3. Control Panels

Suitable for PLC-control automation panels, where solenoid valves are actuated to switch fluids and sequence systems.

4. Engine Room Applications

Built into lubrication systems, cooling systems, and pressure control units for secure switching and system protection.

5. Process Automation

Applied to oil and gas, chemical facilities, power plants, and water treatment, where multi-directional control of more than two ports is necessary.

Why NAKAKITA NS691 Solenoid 4 Way Valve?

Selecting the Nakakita NS691 is investing in Japanese precision design and marine-grade dependability. Here’s why it excels:

Brand Legacy of Trust

Nakakita Seisakusho is a well-respected marine automation manufacturer globally, renowned for innovation, precision, and performance.

Superior Reliability

Designed to withstand rugged marine and industrial applications, with low maintenance and long-term service.

Seamless Integration

NS691 valve integrates easily into existing hydraulic or pneumatic systems, using standard control voltages and port sizes.

Superior Material Quality

Constructed of corrosion-resistant alloys and sealed solenoid units, guaranteeing durability in high-humidity or saline conditions.

Energy-Efficient Operation

Solenoid coil draws minimal power, with energy savings without the sacrifice of performance.

Ubiquitous Applied and Tried Design

Its 4-way valve design is standard in naval automation, with guaranteeing compatibility and replacement parts available.