VXZ262KZ2A: SMC Pilot-Operated, Zero-Pressure Differential Start Type 2-Port Solenoid Valve, the Precision Control Expert for Industrial Pneumatic Systems
2025-12-30
The VXZ262KZ2A is a pilot-operated, zero-pressure differential start type 2-port solenoid valve produced by Japan’s SMC Corporation, belonging to the VXZ series. This solenoid valve adopts a pilot-operated structure, featuring zero-pressure differential start capability, high flow capacity, and a compact design. It is widely used in industrial automation control systems for on/off control of media such as water, air, and oil.
Core Product Advantages
- Zero-Pressure Differential Start Capability Utilizes a pilot-operated structure, enabling reliable start-up at zero pressure differential. It can operate normally without requiring media pressure, making it especially suitable for low-pressure or vacuum environments.
- Large Flow Capacity Design Valve body size is 25A, with 1-inch port size and 25mm orifice diameter. The flow coefficient (Cv) reaches 2.3, offering high flow capacity to meet high-flow application demands.
- Compact and Lightweight Structure Constructed from lightweight materials such as aluminum, resin, and C37 stainless steel, resulting in a compact structure and light weight, facilitating installation and maintenance.
- Multiple Seal Material Options Standard seal material is NBR. Special seal materials like FKM and EPDM are available as options, adapting to different media and temperature conditions.
Technical Specifications
| Parameter Item | Specification Value | Description |
|---|---|---|
| Series | VXZ | Product Series |
| Valve Type | N.C. (Normally Closed) | Opens when energized |
| Valve Body Material | C37 Stainless Steel | Main Body Material |
| Port Size | 1 Inch | Port Specification |
| Orifice Diameter | 25 mm | Flow Orifice Diameter |
| Operating Pressure Range | 0.1~1.0 MPa | Working Pressure Range |
| Maximum Operating Pressure | 1.0 MPa | Max Working Pressure |
| Medium | Water, Air, Oil | Suitable Media |
| Ambient Temperature | -20~60°C | Operating Temperature Range |
| Rated Voltage | DC24V | Operating Voltage |
| Lead Wire Configuration | DIN Type Connector | Wiring Method |
| Protection Structure | IP65 | Protection Rating |
| Medium Temperature Range | -5~60°C | Medium Temperature Range |
| Flow Coefficient (Cv) | 2.3 | Flow Capacity |
| Effective Cross-Sectional Area | 8.3 dm³/(s·bar) | Flow Performance |
Working Principle
The VXZ262KZ2A employs a pilot-operated solenoid valve structure. When the solenoid coil is energized, it generates a magnetic force that pulls in the movable core, opening the pilot orifice. This causes the pressure in the upper chamber of the main valve poppet to drop. Due to the pressure differential, the main valve poppet moves upward, opening the valve and allowing media flow. When de-energized, the magnetic force disappears. The spring force closes the pilot orifice, causing pressure in the main valve poppet’s upper chamber to rise. The combination of spring force and pressure then closes the main valve, stopping media flow. This structural design allows the solenoid valve to operate reliably even under zero pressure differential or vacuum conditions.
Typical Application Scenarios
- Industrial Automation Production Lines Used in automated production lines such as automotive manufacturing and electronic device production to control the actions of pneumatic actuators, enabling functions like workpiece grasping, handling, and positioning, thereby improving production efficiency.
- Water Treatment Equipment Used in water treatment systems to control the on/off state and flow regulation of water, ensuring the stability and reliability of the water treatment process.
- Food Processing Equipment Controls pneumatic systems in food processing equipment for material conveying, packaging, and other stages, ensuring food safety and production efficiency.
- Chemical Equipment Used in chemical production processes to control the on/off state and flow regulation of various media, ensuring precision and safety in the production process.
Installation and Usage Precautions
- Installation Requirements The solenoid valve should be mounted on a flat and stable base to ensure stable operation. Before installation, verify that the air supply pressure meets the 0.1~1.0 MPa requirement and ensure the air source is clean. During installation, ensure the arrow direction on the valve body aligns with the fluid flow direction; it must not be installed backwards. The coil should be installed with its axis vertical, facing upwards; it should not be installed on its side.
- Operating Environment The operating temperature range is -20~60°C. Avoid use in high or low-temperature environments. Relative humidity should be maintained below 90% to prevent moisture from affecting equipment lifespan. The medium used should be filtered through a 40μm or finer filter before use.
- Regular Maintenance Regularly inspect the solenoid valve’s connecting pipelines and valves to ensure there are no leaks. Periodically clean the solenoid valve surface to keep it clean. Regularly check the solenoid valve’s operational performance to ensure long-term stable operation. Perform a comprehensive inspection and maintenance every 6 months.
- Safe Operation Ensure equipment is properly grounded before operation to prevent electric shock hazards. Avoid contact with moving parts during operation to prevent pinching injuries. In case of equipment malfunction, shut down immediately and have it repaired by professionals. Always depressurize before installation to avoid injury from high-pressure media discharge.
Conclusion
The VXZ262KZ2A pilot-operated, zero-pressure differential start type 2-port solenoid valve is the “Precision Control Expert” in the field of industrial automation. It perfectly combines zero-pressure differential start capability, high flow capacity, and compact design, providing an efficient, reliable, and convenient fluid control solution for various industrial applications.
Choosing the VXZ262KZ2A means choosing to drive your automation system towards higher efficiency with high precision and high reliability!
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