VK332-5DZ-01-F: SMC 3-Port Solenoid Valve, The Precision Control Expert for Industrial Automation

VK332-5DZ-01-F​ is a 3-port direct-acting solenoid valve manufactured by SMC Japan, belonging to the VK300 series. Utilizing a direct-acting poppet structure, this valve features a compact design, high flow capacity, and fast response, making it widely applicable in industrial automation control systems. It provides a reliable and precise directional control solution for pneumatic actuators.

Core Product Advantages

1. Compact and Lightweight Design Employs a compact structural design, resulting in a small footprint and light weight. This facilitates easy installation and integration into automation equipment with space constraints, reducing required mounting space and enhancing overall system flexibility.
2. High Flow Capacity Delivers excellent flow characteristics, with a Cv(P→A/B) of 3.7 dm³/(s·bar), a b value of 0.4, and a Cv value of 0.87. This ensures rapid response and efficient control within pneumatic systems.
3. Fast Response Performance Features a swift response time of only 10ms, enabling quick reaction to control signals. It meets the demands of high-frequency on/off industrial applications, helping to shorten production cycle times.
4. Vacuum Compatibility Operable within a pressure range of 0 to 0.7 MPa, allowing it to function in vacuum environments and meet diverse operational requirements.

Technical Specifications

Parameter Item	Specification Value	Description
Series	VK300 Series	Product Series
Number of Ports	3 Ports	Fluid Control Channels
Rated Voltage	DC24V	Power Supply Voltage
Lead Wire Type	DIN-type Connector	Wiring Method
Indicator	With LED / Overvoltage Protection Circuit	Status Indication
Port Size	Rc1/8	Port Connection Size
Operating Pressure Range	0 ~ 0.7 MPa	Working Pressure Range
Maximum Operating Pressure	1.0 MPa	Maximum Working Pressure
Proof Pressure	1.5 MPa	Pressure Resistance Rating
Operating Fluid	Air	Working Medium
Ambient Temperature	-5 ~ 50°C	Operating Temperature Range
Lubrication Method	Non-Lubricated	Lubrication Type
Response Time	10ms	Response Speed
Protection Structure	IP40	Ingress Protection Rating
Seal Type	Resilient Seal	Sealing Form
Pilot Type	Internal Pilot	Control Method
Operation Mode	Normally Closed	Valve State (De-energized)
Manual Operation	Non-locking Push Type	Manual Override Type
Exhaust Type	Individual Exhaust	Exhaust Method

Model Breakdown

• VK332:​ SMC Solenoid Valve Series Code
• 5:​ Rated Voltage DC24V
• D:​ Lead Wire Type: DIN-type Connector
• Z:​ With LED / Overvoltage Protection Circuit
• 01:​ Port Size Rc1/8
• F:​ With Bracket

Working Principle

The VK332-5DZ-01-F employs a direct-acting poppet structure. When the solenoid coil is energized, the generated electromagnetic force directly lifts the valve plunger, changing the state of the fluid flow path. The valve body features a 3-port design: P (pressure inlet), A (working port), and R (exhaust port). Depending on the plunger’s position, the flow switches between P→A or A→R, thereby controlling the action of pneumatic actuators. When de-energized, the electromagnetic force ceases, and the spring force returns the plunger to its initial (normally closed) state.

Operating Sequence:

1. The solenoid coil is energized, generating an electromagnetic force.
2. The electromagnetic force directly moves the valve plunger.
3. The plunger movement changes the state of the fluid flow path.
4. Flow switches between P→A or A→R.
5. Upon de-energization, the spring force returns the plunger.

Typical Application Scenarios

1. Industrial Automation Production Lines Used to control the directional motion of pneumatic actuators (cylinders, grippers) in automated production lines for tasks like pushing, positioning, clamping, and transferring workpieces in industries such as automotive manufacturing and electronics assembly, enhancing production efficiency and product quality.
2. Packaging Machinery Controls actions like material conveying, sorting, and marking on packaging machines. The solenoid valve provides precise directional control for pneumatic actuators, ensuring accuracy and stability in the packaging process.
3. Robotics Serves within robotic pneumatic control systems to command the directional motion of pneumatic actuators, enabling tasks like workpiece gripping, positioning, and placement, thereby improving robot motion precision and efficiency.
4. Precision Manufacturing Equipment In semiconductor manufacturing, precision machining, and similar equipment, it controls the action precision of pneumatic actuators, ensuring process stability and repeatability, leading to higher product quality.

Installation and Usage Precautions

1. Installation Requirements Install the solenoid valve on a flat, stable base to ensure stable operation. Before installation, verify the air supply pressure meets the 0~0.7 MPa requirement and ensure the air source is clean. During installation, pay attention to the valve’s port direction; the arrow on the valve body should align with the medium flow direction. Do not install it backwards. P is the pressure inlet, A(B) is the working port, and R(S) is the exhaust port.
2. Operating Environment Operate within the ambient temperature range of -5~50°C. Avoid use in extremely high or low temperatures. Maintain relative humidity within an appropriate range to prevent moisture from affecting service life. The operating medium (air) should be filtered through a 40μm or finer filter before use.
3. Electrical Connection Wire strictly according to the voltage parameters specified on the nameplate (DC24V) and ensure a stable power supply. When connecting wires, ensure all connections are secure to prevent valve malfunction due to loosening. It is recommended to install an overload protection device in the circuit.
4. Piping Connection Thoroughly blow or clean out any cutting chips, cutting oil, and debris from the piping before connection. When using threaded pipes and fittings, take care to prevent chips and sealant tape fragments from entering the piping. If using sealant tape, leave the first 1.5-2 thread pitches bare.
5. Regular Maintenance Periodically inspect the solenoid valve’s connecting pipes and fittings for leaks. Regularly clean the valve’s external surface. Check the valve’s operational performance periodically to ensure long-term stable operation. After prolonged shutdowns, perform an initial air purge before resuming operation.
6. Safety Operation Ensure the equipment is properly grounded before operation to prevent electric shock. Avoid contact with moving parts during operation to prevent injury. In case of malfunction, stop the equipment immediately and have it repaired by qualified personnel. Always depressurize the system before installation or maintenance to prevent injury from high-pressure air. Strictly avoid using the product outside its rated pressure, temperature, and medium specifications.

Conclusion

The VK332-5DZ-01-F 3-port solenoid valve is the “Precision Control Expert” in the field of industrial automation. It perfectly combines compact design, rapid response, and high flow capacity, providing an efficient, reliable, and precise directional control solution for a wide range of industrial applications.

Choosing the VK332-5DZ-01-F means choosing to drive your automation system towards higher efficiency with high response speed and high reliability!

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