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Brand: EBRO ARMATUREN
EBRO EP3 Electro-Pneumatic Positioner with IO-Link
Description
A compact positioner that turns a pneumatic actuator into a control valve
The EP3 is EBRO ARMATUREN’s electro-pneumatic positioner. It mounts directly on a part-turn pneumatic actuator through a VDI/VDE 3845 interface, reads the valve angle with a non-contact angle sensor, and drives the actuator through a 5/3-way or 3/3-way solenoid valve and a throttle unit. The result is a self-contained package that accepts a 4-20 mA or 0-10 V setpoint and positions the valve over a 100 degree recording range.
Setup happens at the unit with its pushbutton and RGB light element, or remotely over IO-Link and Bluetooth, so no laptop is strictly needed on site. The unit also carries acceleration and temperature sensors.
Technical specifications
| Parameter | Specification |
|---|---|
| Housing | Powder-coated aluminium |
| Local operation and status | Pushbutton with RGB light element; IO-Link and Bluetooth interfaces |
| Temperature range | -20 °C to +60 °C (-4 °F to +140 °F); ATEX version -10 °C to +40 °C |
| Wiring | Screw terminals for 26-16 AWG wire; M12 panel connector as an option |
| Recording range | 100 degrees |
| Dead zone | Adjustable 1 to 10 %, delivered at 3 % |
| Fail position | Hold, close or open |
| Power supply | 24 V DC +/-10 % |
| Current consumption | Max. 380 mA |
| Position feedback sensor | Non-contact angle sensor |
| Further sensors | Acceleration and temperature sensors |
| Setpoint and extra analog input | 4-20 mA or 0-10 V |
| Analog feedback output | 4-20 mA or 0-10 V |
| Digital inputs | Three, for open/closed, a middle position and an outside process sensor |
| Digital outputs | Three, for open, closed and fault or middle position |
| Supply polarity protection | Yes |
| Control medium | Neutral gases, air |
| Supply pressure | 3 to 8 bar (43.5 to 116.0 psi) |
| Pilot air connection | G 1/4 inch |
| Air output | 1250 Nl/min (44.125 ft3/min), adjustable |
| Body protection | IP 65, optional IP67 |
| Corrosion protection | CS3 or optional CS5M |
| Air quality | ISO 8573-1:2010, 7-4-4 |
| Mechanical connection | VDI/VDE 3845 page 1:2010-09, direct setup |
Dimensions are given as A 68, B 98, C 125, D 114, E 70, F 80, G 30, H 202, I 66 and J 81 mm, and the weight with solenoid valve and throttle unit is 2.0 kg.
Reading the type code
The data sheet type code is built from eleven positions.
| Position | Options |
|---|---|
| 1 Mode | Positioner P; open/close eco mode D; position controller linear PL; open/close eco linear DL |
| 2 Actuator type | Double-acting D; single-acting S; fixed last position H (double-acting only) |
| 3 Safety position | Closing C; opening O |
| 4 Control | 4-20 mA or 0-10 V A; IO-Link I; 24 V D |
| 5 Connection material | Plastic K; metal M |
| 6-7 Connections 1 and 2 | M12 plug S; M20 x 1.5 for 6-12 mm cable 2; blind screw connection 0 |
| 8 Exhaust air material | Diaphragm B; sintered bronze S1; plastic K1; open G 1/4 inch 00 |
| 9 Supply air | Open G 1/4 inch 00; L-push-in fitting to 6, 8 or 10 mm E1, E2, E3 |
| 10 Actuator size | EB5-12 D; EB14-18 A; EB20-26 AA; SC |
| 11 Explosion protection | Without 0; ATEX 3GD E |
Explosion protection and communication
An optional ATEX version carries the marking Ex II 3G/D. The switch box is Ex II 3 G Ex ec IIC T5 Gc X and Ex II 3 D Ex tc IIIC T85 °C X Dc, the valve is Ex II 3 G Ex h IIC T6 Gb and Ex II 3 D Ex h IIIC T80 °C, the coil is II 3G ec IIC Tx Gc and II 3D tc IIIC Tx °C Dc, and the plug is II 2G eb IIC T5 Gb and II 2D tb IIIC T100 °C Db. IO-Link runs at COM3 (230.4 kBaud), revision 1.1.3, class A, with a minimum cycle time of 10 ms. The unit carries CE and IO-Link conformity, and further approvals are available on request.
Wiring and installation notes
Terminal block X1 carries PE, +24 V for external sensors and for the conventional supply, 0 V, analog inputs 1 and 2, feedback OPEN, CLOSED and third position, and the analog feedback outputs; X2 handles the supply and IO-Link master lines. Supply air must be neutral gas or air to ISO 8573-1 class 7-4-4. Choose the connection code and the actuator size position of the type code to match the EB or SC actuator on the valve.
Typical use
EP3 positioners suit process plants that need modulating control on pneumatic part-turn actuators, such as dosing and flow control in water treatment, chemical skids or district cooling. The listed -20 °C to +60 °C limit is relevant for outdoor mounting in hot sun, where a shade or an enclosure may be needed; the ATEX version is rated -10 °C to +40 °C.
Information to send with an RFQ for the EBRO EP3 Electro-Pneumatic Positioner with IO-Link
A positioner has to match both the actuator and the control system. For the EBRO EP3 Electro-Pneumatic Positioner with IO-Link, give the actuator type (linear or rotary, single or double acting), its stroke or rotation angle, and the mounting standard on the valve. List the input signal from the control system and any feedback signal required back to it.
- Supply air pressure and quality available on site.
- Communication needs, such as HART or a digital fieldbus.
- Ambient temperature range and enclosure protection required.
- Quantity and whether mounting kits for existing valves are needed.
Including the valve and actuator data lets the positioner be supplied with the correct mounting parts so it can be fitted without modification on site.
Related items and documents
See the valve positioners category for other positioners. The SC linear actuator and the SVD solenoid valve belong to the same EBRO actuator family. Datasheet provided. Seven Star LLC will respond to a request for EP3 once the type code and quantity are known.
Frequently asked questions
What control signals does the EP3 accept?
4-20 mA or 0-10 V setpoint, IO-Link, or a 24 V open/close signal, depending on the type code.
What air supply does it need?
Neutral gases or air at 3 to 8 bar, with air quality to ISO 8573-1:2010 class 7-4-4, and a G 1/4 inch pilot connection.
How much air can it deliver?
The air output is 1250 Nl/min and is adjustable.
Is an ATEX version available?
Yes. An optional version is marked Ex II 3G/D with the component markings printed in the data sheet.
How is it mounted?
Directly on the actuator through a VDI/VDE 3845 interface, which the data sheet calls direct setup.
Datasheets & Documents
- Datasheet EBRO EP3 position controller technical data sheet, version 30/01/2026 (PDF) Download
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About brand
EBRO ARMATUREN is a German manufacturer of shut-off and control valves and actuators, founded in 1972 and headquartered in Hagen, North Rhine-Westphalia. The owner-managed company is known for butterfly valves and, since acquiring Stafsjö Valves of Sweden in 2005, for knife gate valves. EBRO has production in Germany, Italy, Sweden, China and Thailand.
Seven Star LLC is an independent supplier in Muscat. We list EBRO valves and actuators for water, power and process users in Oman and the GCC.
EBRO ARMATUREN company profile
| Founded | 1972, Hagen, Germany |
|---|---|
| Headquarters | Hagen, Germany |
| Ownership | Owner-managed (Gebr. Bröer) |
| Acquisition | Stafsjö Valves AB, Sweden, 2005 |
| Product families | Centric and PTFE-lined butterfly valves, split-body butterfly valves, Stafsjö knife gate valves, wafer check valves, ball valves, SC pneumatic linear actuators and quarter-turn actuators |
Milestones
- 1972: EBRO ARMATUREN is founded in Hagen.
- 2005: EBRO acquires Stafsjö Valves.
EBRO ARMATUREN product series
Butterfly valves include the Z 611-A split-body wafer valve, the T 211-A PTFE-lined wafer valve for corrosive media and the F 012-A double-flanged valve for DN 50 to 1400. The V-3MH is a three-piece stainless steel ball valve and the RSK a wafer check valve for DN 32 to 600.
Actuation includes the SC double-acting pneumatic linear actuators, the E 50 to E 210 electric part-turn actuators and the MS3 electric control drive with IO-Link, plus the EP3 electro-pneumatic positioner with IO-Link and SVD, SVS and SVF NAMUR solenoid pilot valves.
Where EBRO valves are used
Water and wastewater, energy, chemical plants, bulk solids handling, food and beverage and pulp and paper. EBRO reports a branch in Dubai, opened in 2009, serving the region.
EBRO ARMATUREN products we list
Ordering EBRO products: what we need
Send the valve type and size, flange standard and pressure rating, body, disc and seat materials, medium and temperature, and the actuator type with supply and control signal. Each product has its own data sheet with dimensions, materials and torque or flow data.
Facts checked against EBRO ARMATUREN's trade fair profiles and company listings, October 2026.
Browse EBRO ARMATUREN products by category: Ball Valves.
Related products
Frequently Asked Questions
What control signals does the EP3 accept?
4-20 mA or 0-10 V setpoint, IO-Link, or a 24 V open/close signal, depending on the type code.
What air supply does it need?
Neutral gases or air at 3 to 8 bar, with air quality to ISO 8573-1:2010 class 7-4-4, and a G 1/4 inch pilot connection.
How much air can it deliver?
The air output is 1250 Nl/min and is adjustable.
Is an ATEX version available?
Yes. An optional version is marked Ex II 3G/D with the component markings printed in the data sheet.
How is it mounted?
Directly on the actuator through a VDI/VDE 3845 interface, which the data sheet calls direct setup.
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