Electronic Regulators
SMC electro-pneumatic regulators — also called electronic regulators or E/P regulators — convert an electrical control signal into a precisely controlled, proportional output pressure. Automation Distribution is an authorized SMC distributor carrying the full ITV line, from compact OEM-scale units to high-pressure and vacuum models. This page is a selection guide: use it to match a series to your application, then jump into the right subcategory.
What is an electro-pneumatic regulator?
An electro-pneumatic regulator sets and holds output pressure electronically instead of by hand. You feed it a command signal — an analog voltage or current, a preset selection, or a digital fieldbus value — and an internal pressure sensor closes the loop, driving the actual output to match the setpoint and holding it against flow and supply variation. That makes it the right tool wherever pressure has to be adjusted on the fly, repeated setpoint-to-setpoint, or commanded directly from a PLC: tension control, force and clamping, paint and coating, leak testing, web handling, and servo-pneumatic positioning.
The practical difference from a manual regulator is control authority. A manual regulator is set once by an operator; an ITV regulator is commanded by the machine, logged, and changed in milliseconds without anyone touching a knob.
How to choose an ITV series
Start with body size. It drives port size and flow capacity, which is the first thing that has to fit your application. All three standard bodies share the same core control performance and the same set of output ranges — roughly 0.005–0.1 MPa, 0.005–0.5 MPa, and 0.005–0.9 MPa — so the decision is about flow and footprint, not precision.
| Series | Port size | Best for |
|---|---|---|
| ITV1000 — Compact | 1/8, 1/4 | Tight panels and OEM machine builds where space and weight matter and flow demand is modest. |
| ITV2000 — Standard | 1/4, 3/8 | The general-purpose default. Covers the majority of mid-flow pressure-control applications. |
| ITV3000 — Large-Flow | 1/4, 3/8, 1/2 | Large actuators and high air-consumption circuits that would starve a smaller body. |
Analog, preset, or fieldbus — picking the control signal
Every ITV series is available in more than one command interface, and this is a hard compatibility decision, not a preference. Choose the one your controller already speaks:
Analog
The most common option: 0–5 VDC, 0–10 VDC, 4–20 mA, or 0–20 mA. Wire it to an analog output card and command pressure directly. Current-loop (4–20 mA) is the choice for long runs or electrically noisy plants.
Preset
Switch-selected setpoints (4-point and 16-point preset models) let a machine step between stored pressures on digital I/O alone — no analog card required.
Fieldbus & serial
Networked models take their setpoint over an industrial bus — DeviceNet, CC-Link, PROFIBUS DP, or RS-232C — so the PLC commands pressure digitally over the plant network instead of running dedicated analog wiring. If your line is standardized on a protocol, the regulator has to match it. Browse all networked units together in Fieldbus & Serial Communication.
High-pressure and vacuum variants
When the standard 0.9 MPa bodies don't cover the job, three purpose-built families do:
- ITVH2000 — high-pressure electro-pneumatic regulator for supply pressure up to 3.0 MPa.
- ITVX2000 — high-pressure model rated for supply pressure up to 5.0 MPa, for the most demanding circuits.
- ITV2090 / ITV2091 — electronic vacuum regulator for proportional control on the vacuum side, for handling, chucking, and packaging.