The **SVB-15Z-R/CE** is a specialized high-vacuum solenoid valve, typically manufactured by companies like **CKD** or similar industrial pneumatic/vacuum component providers. These valves are engineered for environments requiring precise control over vacuum levels, such as semiconductor manufacturing, laboratory equipment, and coating processes. --- ## 1. Technical Specifications Below are the primary electrical and mechanical specifications for this component: | Feature | Specification | |:---|:---| | **Type** | Solenoid Valve (Pilot Kick Type) | | **Bore Size** | 15 mm | | **Operation** | Normally Closed (NC) | | **Media** | Vacuum, Non-corrosive gas, Air | | **Pressure Range** | $1 \times 10^{-5}$ Pa to 0.2 MPa | | **Certification** | CE Marked (Compliant with EU safety standards) | | **Response Time** | Typically < 50ms | --- ## 2. Electronic Components & Operation The "electronic" side of this valve refers to the **Solenoid Coil** and the **Control Interface**. ### A. Solenoid Coil System The coil is the heart of the valve’s electrical system. When electricity flows through the coil: 1. It creates an electromagnetic field. 2. This field pulls a plunger (armature) against a spring. 3. Because this is a **Pilot Kick Type**, the solenoid operates a small pilot hole first, allowing the pressure differential to help lift the main diaphragm or piston. ### B. Electrical Wiring & Connectors * **Voltage Options:** Usually available in 24V DC, 100V AC, or 200V AC. * **Terminal Box:** The "CE" designation often implies a specific DIN connector or a lead wire terminal box that meets European insulation and shielding standards. * **Surge Suppressor:** High-quality versions (like the -R suffix models) often include a built-in diode or varistor to prevent back-EMF (voltage spikes) from damaging the PLC or controller driving the valve. --- ## 3. Key Features for Vacuum Applications * **Bellows Seal:** Unlike standard valves that use O-rings on the sliding shaft, vacuum valves like the SVB series often use a stainless steel bellows. This prevents atmospheric air from leaking into the vacuum chamber through the actuator. * **Power Consumption:** Modern versions are designed for low power consumption to reduce heat transfer to the vacuum medium. * **Reverse Pressure Resistance:** The "R" in the model code often signifies specific resistance or flow characteristics suitable for reverse pressure or specific mounting orientations. --- ## 4. Maintenance & Safety Since this part is **CE certified**, it adheres to: 1. **Low Voltage Directive:** Ensuring electrical insulation is sufficient. 2. **EMC Directive:** Ensuring the coil doesn't interfere with other electronics and is protected from external noise. ```yaml Maintenance_Tip: - Check the coil resistance regularly to identify internal shorts. - Ensure the DIN connector gasket is intact to maintain the IP rating. - Verify that the power supply matches the voltage printed on the solenoid plate. ```