The SMC ITV2050-31F3N is an electro-pneumatic regulator designed for industrial applications that require compressed air pressure to be controlled by an electrical signal instead of a manual adjustment knob. It belongs to SMC’s well-known ITV1000/2000/3000 series, a product family developed for stepless control of air pressure in proportion to electric signals. SMC’s official series description highlights key performance characteristics such as sensitivity of 0.2 kPa on the 100 kPa specification, linearity of ±1% or less of full scale, and hysteresis of 0.5% or less of full scale, which is why the ITV range is widely used in automation equipment, assembly machines, packaging systems, test benches, and other pneumatic control applications where pressure must be adjusted accurately and repeatedly.
For this requested model, there is one point that needs to be stated clearly. In SMC’s official web catalog, the directly resolved catalog entry appears as ITV2050-01F3N, not ITV2050-31F3N. In that official entry, SMC decodes the configuration as 2000 type, 0.9 MPa pressure range, 24 VDC power supply, 4 to 20 mA DC sink-type input, 1 to 5 VDC analog monitor output, G thread, 3/8 port size, and without cable connector. Multiple industrial distributors and catalog resellers, however, list the requested code ITV2050-31F3N as a valid commercial part number for the same ITV2000 family and consistently describe it as a 3/8-inch-port electro-pneumatic regulator. Because of that mismatch, the safest technical position is to treat ITV2050-31F3N as a market-listed ordering variant closely aligned with the official SMC configuration represented by ITV2050-01F3N, while noting that the exact suffix string should be verified against the final quotation or nameplate before using it in a formal technical file.
That said, the product itself is straightforward in function. The ITV2050-31F3N is intended for systems where air pressure should not remain fixed. In many conventional pneumatic circuits, a regulator is adjusted once during installation and then left unchanged. That is acceptable in simple systems, but it becomes a limitation in automated production equipment where pressure needs to change according to product size, clamping force, test pressure, cycle step, or recipe. An electro-pneumatic regulator solves that problem by converting an electrical control signal into proportional output pressure, allowing the machine controller to manage pneumatic force dynamically. This is one of the main reasons the ITV series remains widely used in OEM machinery and industrial automation.
Key Specifications
| Item | Specification |
|---|---|
| Brand | SMC |
| Model | ITV2050-31F3N |
| Product Type | Electro-Pneumatic Regulator |
| Series | ITV1000/2000/3000 |
| Type | ITV2000 |
| Pressure Range | 0.005 to 0.9 MPa |
| Power Supply | 24 VDC |
| Input Signal | 4 to 20 mA DC, sink type |
| Monitor Output | 1 to 5 VDC analog output |
| Port Size | 3/8 |
| Thread Type | G |
| Cable Connector | Without cable connector |
| Product Net Weight | 350 g |
| Typical Flow Figure Seen in Distribution Listings | 1500 L/min |
The 0.9 MPa pressure-range class is one of the defining characteristics of the ITV2050 family. In SMC’s official configuration table, the “5” pressure-range code corresponds to 0.9 MPa, which places this model in the higher standard pressure band within the ITV1000/2000/3000 series. That makes it suitable for a wide range of industrial pneumatic applications where more pressure headroom is required than the 0.1 MPa or 0.5 MPa versions can provide. Typical use cases include clamping systems, pressing stations, leak-test equipment, fixture control, and pneumatic handling systems where electronically adjustable force is required.
The input signal format is also commercially important. In the official SMC web-catalog entry that corresponds most closely to this requested model, the unit is specified with a 4 to 20 mA DC sink-type input. That matters because many industrial PLCs, process controllers, and analog output modules are standardized around current-loop signals rather than voltage commands. A 4 to 20 mA input is often preferred in industrial environments because it is less susceptible to electrical noise over longer wiring runs than low-voltage analog signals. For machine builders and retrofit projects, this can make integration easier and more stable in real factory conditions. The same official entry lists 1 to 5 VDC analog output for monitoring, which gives the control system a feedback signal for supervision, diagnostics, and process confirmation.
Product Weight and Commercial Handling
| Weight Reference | Reported Value |
|---|---|
| Official SMC ITV20 series weight | Approx. 350 g |
| RS listing for ITV2050-31F3N | 0.350 kg |
| Distrelec gross weight including package | 464 g |
| Third-party listings | 460 g to 500 g also appear |
For your requirement to include product weight, the most defensible value is approximately 350 g net unit weight. Official SMC ITV-series documentation states that the ITV20 class weighs about 350 g. This aligns with the RS industrial distribution listing for ITV2050-31F3N, which states a weight of 0.350 kg. Some other reseller pages show 460 g, 464 g gross with package, or even 500 g, but those figures are likely affected by packaging method, reseller data normalization, or gross-weight handling. For technical introductions, BOM work, and standard catalog copy, 350 g is the safest number to use. For freight calculation, packaged weight should be estimated higher.
From an engineering perspective, the ITV2000 size class is often the most practical middle ground in the series. It offers more useful capacity than the smaller ITV1000 models without taking up as much space as the ITV3000 range. In the official SMC web-catalog entry, the corresponding configuration is a 3/8 port version, which is consistent with distributor listings that also describe the part as a 3/8-inch-port regulator and mention a 1500 L/min maximum flow figure. That combination of mid-size body, 3/8 connection, and 0.9 MPa range makes this regulator attractive for machinery that needs meaningful pneumatic capacity while still fitting into compact industrial layouts.
Why This Model Is Useful in Automation
| Application Area | Functional Benefit |
|---|---|
| Packaging machinery | Pressure can change automatically for different products |
| Assembly systems | Clamping or pressing force can be tuned electronically |
| Leak testing | Stable and repeatable test pressure improves consistency |
| Handling equipment | Pneumatic force can be matched to part size or surface condition |
| Retrofit projects | Replaces manual adjustment with programmable control |
| OEM machine building | Easier integration with PLC or control-system architecture |
The benefit of the ITV2050-31F3N is not just that it regulates air. The real value is that it allows air pressure to become part of the machine’s programmable logic. In a packaging machine, different products may need different gripping or sealing pressure. In an assembly station, pneumatic force may need to be reduced for delicate components and increased for heavier parts. In test equipment, consistent regulated pressure is directly tied to result repeatability. In each of these cases, the ITV regulator can reduce manual intervention, shorten setup time, and improve consistency from one production run to the next. SMC’s published series characteristics are specifically aimed at this kind of proportional pneumatic control.
Another important point is installation suitability. Distributor listings for the requested model note an operating temperature range of 0°C to +50°C, which is consistent with the general ITV series operating envelope seen in SMC documentation. That makes the regulator appropriate for most general industrial machine environments rather than for extreme-temperature or specialty sanitary applications. The requested model is therefore best understood as a general-purpose industrial electro-pneumatic regulator for controlled automation duty.
Technical Summary
| Category | Description |
|---|---|
| Product Name | SMC ITV2050-31F3N Electro-Pneumatic Regulator |
| Main Function | Regulates compressed air pressure in proportion to an electrical signal |
| Series Position | ITV2000 mid-size platform |
| Pressure Class | 0.005 to 0.9 MPa |
| Signal Type | 4 to 20 mA sink-type input |
| Monitor Output | 1 to 5 VDC analog output |
| Connection | 3/8 G thread |
| Cable Style | Without cable connector |
| Approximate Net Weight | 350 g |
| Suitable Users | OEMs, machine builders, integrators, maintenance teams |
In summary, the SMC ITV2050-31F3N is a strong choice for industrial users who need repeatable, electrically controlled air-pressure regulation in a practical mid-size body. Based on the closest official SMC web-catalog configuration and supporting industrial distributor data, it should be understood as a 24 VDC ITV2000 regulator with 0.9 MPa range, 4 to 20 mA sink-type input, 1 to 5 VDC analog output, 3/8 G connection, and approximately 350 g net weight. The only caution is that the exact suffix string should be checked against the final part-number source, because SMC’s official web catalog currently resolves the closest matching configuration as ITV2050-01F3N rather than ITV2050-31F3N.
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