The part number **48DV-2CV3-R** typically refers to a specific configuration of a high-performance **Electromagnetic Valve** or **Solenoid Valve**, often associated with precision fluid control or pneumatic systems (frequently manufactured by brands like **Koganei** or similar industrial automation firms). Below is a breakdown of the electronic and physical components associated with this type of device. --- ### 1. General Specifications | Feature | Description | | :--- | :--- | | **Component Type** | 3-Port Direct Acting Solenoid Valve | | **Actuation** | Electromechanical (Solenoid) | | **Voltage Options** | Typically 24V DC (Standard for "R" series) | | **Response Time** | High-speed (Approx. 5–10ms) | | **Fluid Media** | Air or Inert Gas | --- ### 2. Electronic Components & Internal Workings #### A. The Solenoid Coil The heart of the device is an electromagnetic coil. When electrical current passes through the copper windings, it creates a magnetic field. * **Power Consumption:** Designed for low wattage to reduce heat buildup during continuous operation. * **Insulation Class:** Usually Class B or H to withstand high internal temperatures. #### B. The "R" Suffix (Electronic Features) In industrial coding, the **-R** often signifies specific electronic enhancements: * **Surge Suppression:** Includes a built-in metal-oxide varistor (MOV) or diode to prevent voltage spikes from damaging the PLC (Programmable Logic Controller) when the coil is de-energized. * **LED Indicator:** Many versions include a small LED to provide visual feedback on the power status of the valve. #### C. Connector Interface * **Plug-in Lead Wire:** The electronic connection is usually made via a dedicated plug-in connector to allow for easy replacement without rewiring the entire system. * **Polarity:** DC models are usually polarity-sensitive if an LED or suppression diode is integrated. --- ### 3. Functional Identification (Part Number Breakdown) While specific to the manufacturer, the code generally follows this logic: | Code Segment | Meaning | | :--- | :--- | | **48DV** | Series Identifier (Valve body size and flow capacity) | | **2** | Number of positions (2-position) | | **CV3** | Porting and Valve type (3-port configuration) | | **-R** | **Electronic Option:** Usually indicates a surge suppressor and indicator light | --- ### 4. Application in Circuits These parts act as the interface between **Digital Logic** (Electronic) and **Mechanical Movement** (Pneumatic). 1. **Input:** A 24V DC signal from a Transistor or Relay output of a PLC. 2. **Processing:** The solenoid coil converts electrical energy into linear motion. 3. **Output:** The plunger moves, shifting the valve seat to allow or block air flow. ---