ITV2030-04F2N: Electro-Pneumatic Proportional Valve – Medium-Pressure, High-Precision Electric-Pneumatic Converter Controlled by Current Signal
2026-03-27
Product Positioning
The ITV2030-04F2N is an electro-pneumatic proportional valve (electric-pneumatic proportional valve) from SMC’s ITV2000 series. It provides stepless continuous control of compressed air pressure based on a 4～20 mA analog current input signal, precisely converting the input current signal into a corresponding output air pressure for high-precision, high-response pressure regulation. Featuring a G1/4 thread port and a pressure setting range of 0.005～0.5 MPa, it is suitable for applications requiring medium-pressure precision control and remote automated setting, such as welding control, painting equipment, tension control, and precision assembly.
Core Highlights: Current Control, High Precision, IP65 Protection
- DC4-20mA Current Input, High Noise Immunity
- Uses a current-type DC4～20 mA input signal (sink type), enabling direct connection with PLC analog output modules or current sources for stepless, continuous regulation of output pressure.
- Current signals offer superior noise immunity compared to voltage signals, suitable for long-distance transmission and demanding industrial environments.
- Medium Pressure Range (0.5MPa), Wide Applicability
- This model corresponds to a pressure range of 0.005～0.5 MPa (set pressure range 0～0.5 MPa), suitable for medium-pressure precision control applications.
- Maximum supply pressure is 1.0 MPa, ensuring reliable pressure resistance.
- High Precision and High Sensitivity
- Sensitivity up to 0.2% F.S. (0.2 kPa), responding sensitively to minor signal changes.
- Linearity within ±1% F.S., hysteresis within 0.5% F.S., repeatability within ±0.5% F.S., ensuring high consistency and repeatability between output pressure and input signal.
- Analog Monitoring Output, Facilitates Closed-Loop Control
- Equipped with an analog output DC4～20 mA monitoring signal (sink type), enabling real-time feedback of the actual output pressure to the host controller (e.g., PLC) for closed-loop control and pressure status monitoring.
- IP65 High Protection, Strong Environmental Adaptability
- Protection rating of IP65 provides excellent dust-tightness and water resistance, suitable for harsh general industrial environments.
- Oil-Free Design, Clean and Environmentally Friendly
- The ITV series features a lubrication-free design, avoiding oil mist contamination, suitable for industries with cleanliness requirements like electronics and medical.
- Pressure Hold Function on Power Failure
- In the event of an unexpected power failure while under pressure, the valve temporarily maintains the output pressure, enhancing system safety and preventing equipment damage or workpiece detachment due to sudden pressure loss.
Model Number Breakdown
Based on multiple search results and SMC naming conventions, the ITV2030-04F2N model breakdown is:
| Code | Meaning | Explanation |
|---|---|---|
| ITV | Series Code | SMC Electro-Pneumatic Proportional Valve / ITV Series |
| 20 | Form | ITV2000 Series (Medium Flow Type) |
| 30 | Pressure Range | 0.5MPa Specification (Set Pressure 0.005～0.5 MPa) |
| -04 | Connection Size | 1/4 inch |
| F | Thread Type | G Thread (PF Thread) |
| 2 | Input Signal | Current Type DC4～20mA |
| N | Monitor Output/Options | Analog Output DC4～20mA (Sink Type) / No Cable Plug / No Bracket |
Specifications Overview
| Item | Specification | Source |
|---|---|---|
| Model | ITV2030-04F2N | |
| Series | ITV2000 | SMC Electro-Pneumatic Proportional Valve / Electric-Pneumatic Proportional Valve |
| Applicable Fluid | Air | |
| Set Pressure Range | 0.005 ～ 0.5 MPa | |
| Max. Supply Pressure | 1.0 MPa | |
| Power Supply Voltage | DC24V | |
| Current Consumption | 0.12 A or less | |
| Input Signal | Current Type DC4～20mA (Sink Type) | |
| Monitor Output | Analog Output DC4～20mA (Sink Type) | |
| Linearity | Within ±1% F.S. | |
| Hysteresis | Within 0.5% F.S. | |
| Repeatability | Within ±0.5% F.S. | |
| Sensitivity | Within 0.2% F.S. | |
| Temperature Characteristics | Within ±0.12% F.S./℃ | |
| Protection Construction | IP65 | |
| Thread Type | G (PF Thread) | |
| Connection Size | G 1/4″ | |
| Bracket | None | |
| Cable Plug | None (Requires Separate Preparation) | |
| Pressure Display Unit | MPa | |
| Ambient/Fluid Temperature | 0 ～ 50℃ | |
| Output Pressure Display Accuracy | ±2% F.S. ±1 digit | |
| Weight | Approx. 0.59 kg |
Structure and Features
According to SMC technical data, main features of the ITV2000 series include:
| Feature | Description | Source |
|---|---|---|
| Closed-Loop Control Principle | Built-in pressure sensor provides real-time output pressure feedback, compared with input signal to ensure output pressure accurately follows input signal | |
| No Nozzle Flapper Mechanism | Insensitive to contaminants, high reliability, simple maintenance | |
| Pressure Hold on Power Failure | Maintains output pressure temporarily if power fails while pressurized | |
| Zero Air Consumption in Balanced State | Air consumption is zero when in equilibrium | |
| Adjustable Zero and Span | Zero point and span can be adjusted under no-pressure condition | |
| IP65 High Protection | Dust-tight and protected against water jets, suitable for harsh industrial environments |
Operating Principle
The ITV2000 series operates on a closed-loop control principle:
- Input Signal: A DC4～20 mA current signal is input to the internal circuit.
- Comparison & Control: The control circuit compares the input signal with the actual output pressure fed back by the pressure sensor.
- Drive Valve: Based on the deviation signal, it drives the supply solenoid valve or exhaust solenoid valve.
- Pressure Regulation: Opening the supply valve increases output pressure; opening the exhaust valve decreases output pressure.
- Stable Output: This continues until the output pressure is proportional to the input signal, at which point the valve(s) close, maintaining stable pressure.
Application Scenarios
- Welding Control: Precise current control of welding gun pressure to ensure consistent welding quality.
- Painting Equipment: Remote adjustment of spray gun atomization pressure for different paints and workpieces.
- Tension Control: Precise control of web tension (paper, film, wire).
- Precision Assembly: Control of press-fitting forces, adjustment of flexible gripping forces.
- Medical Devices: Precise air pressure regulation in ventilators, anesthesia machines.
- Energy Management: Dynamically adjust system pressure based on demand for on-demand air supply.
Usage Precautions
According to SMC technical data, consider the following when using the ITV series:
| Precaution | Description |
|---|---|
| Air Source Preparation | A filter with 5μm or finer filtration is required upstream of the ITV. Do not install a lubricator. |
| Power & Air Supply Sequence | If the supply pressure is cut off while power is on, solenoid valve operation may cause buzzing, reducing lifespan. Ensure power is cut when cutting off the air supply. |
| Pressure Hold Characteristics | If power fails while pressurized, output pressure is temporarily held but not permanently. If the outlet is open to atmosphere, pressure will drop to atmospheric pressure. |
| Residual Pressure Handling | The ITV2000 may have residual pressure below 0.005 MPa at the outlet. To completely reduce to 0, install a 3-way valve at the outlet to exhaust residual pressure. |
| Avoid Tampering | Various parameters are adjusted at the factory. Please avoid disassembling without purpose. |
Summary: High-Precision Electric-Pneumatic Conversion Bridge with Current Control
The ITV2030-04F2N electro-pneumatic proportional valve addresses core needs in automation – precise air pressure control with current signals requiring high noise immunity – through three core technological advantages: DC4-20mA current control input, 0.5MPa medium pressure range, and ±1% high linearity. Its IP65 high protection rating suits harsh industrial environments, the analog 4-20mA monitoring output facilitates closed-loop control, and the bracket-less design is ideal for space-constrained installations. Choosing the ITV2030-04F2N equips your automation equipment with a current-controlled, high-precision, and reliably durable “electric-pneumatic conversion core,” making pressure control accurate, controllable, and an ideal choice for enhancing equipment automation and process stability.
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