Proportional pressure regulator DRPA 1/8", 0-10 bar, 0-10 V
Code: DRPA18-10
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Product detailed description
The DRPA18-10 proportional regulator by AirCom sets the pressure of compressed air from 0 to 10 bar according to a 0–10 V electrical signal: 0 V means 0 bar, 10 V the upper limit of 10 bar. It works as a 3/2-way poppet valve with a proportional solenoid and digital control – it adds air to the outlet and releases it at the same flow rate, and consumes no air itself. A pressure sensor at the outlet constantly monitors and corrects the pressure.
The same regulator for a 4–20 mA signal: DRPA18-10-E20. You will find other sizes and series in the category proportional pressure regulators controlled by an electrical signal.
Specifications
| Parameter | Value |
|---|---|
| Code | DRPA18-10 |
| Manufacturer | AirCom |
| Series | DRPA |
| Control signal | 0–10 V (input resistance 100 kΩ) |
| Control range | 0–10 bar |
| Inlet pressure | max. 12 bar, at least 10 % above the highest pressure being set |
| Connection | G 1/8" (bore 3 mm) |
| Flow rate and venting | 210 l/min (inlet 6 bar, outlet 5 bar) |
| Own air consumption | none |
| Linearity | < ± 0.5 % of full scale |
| Repeatability | ± 0.5 % of full scale |
| Hysteresis | < ± 1 % of full scale |
| Power supply | 24 V DC ±10 %, current consumption max. 500 mA (12 W) |
| Electrical connection | M12 connector, A-coded, 5 pins, angled socket included |
| Protection rating | IP 65 with socket fitted |
| Operating temperature | 0 to +60 °C |
| Medium | dry, lubricated or non-lubricated compressed air filtered to 50 µm, neutral gases |
| Material | brass body, internal parts brass and stainless steel, NBR seals |
| Dimensions (W × H × D) | 35 × 83 × 57 mm |
| Weight | 0.6 kg |
| In the event of signal or power failure | the outlet is vented |
Dimensions and characteristic
The outlet pressure rises evenly with the signal: for DRPA18-10, 5 V corresponds to a pressure of 5 bar and 10 V to a pressure of 10 bar.
Electrical connection and installation
- power supply 24 V DC ±10 %, current consumption max. 500 mA
- 5-pin M12 connector (A-coded); an angled socket for your own cable is included
- control signal 0–10 V
- install a compressed air filter upstream of the regulator – filtration to 50 µm is sufficient, it also handles lubricated air
- keep the inlet pressure at least 10 % above the highest pressure being set and do not exceed the stated value
- if the signal is on and there is no pressure at the inlet, the valve heats up – the manufacturer recommends monitoring the pressure with a pressure switch
- mounting in any position, preferably vertical
Accessories
Setting the control parameters and monitoring the pressure from a computer: software with RS-232 converter DRPAANALYSE. For a higher flow rate, connect the regulator as a pilot regulator for remote-controlled DRI regulators.
Additional parameters
| Category: | Proportional pressure regulators controlled by an electrical signal |
|---|---|
| Pressure: | 12 bar |
| Dimensions: | 35 × 83 mm |
| Weight: | 0,6 kg |
| Max. exit: | 0 to 10 bar |
| Control signal: | 0 to 10 V |
| Flow: | 210 l/min |
| Thread: | G 1/8" |
| Connection cable: | 5-pin M12 connector |
Product rating
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AirCom Pneumatic GmbH from Ratingen, Germany, is a specialist in pressure and flow control of gases and liquids. Its range includes pressure regulators from miniature to high-pressure, precision and proportional regulators, compressed air treatment, pressure switches and pressure transmitters.
From AirCom we offer RPM low-pressure regulators, which hold a constant pressure from 5 to 1500 mbar, and DRPA proportional pressure regulators, which set a pressure of 0 to 16 bar according to an electric signal of 0–10 V or 4–20 mA. Plus a mounting bracket for the RPM 12 and software for setting up the DRPA.
From 5 mbar to 16 barAirCom regulators and accessories
RPM 12 with handwheel
From 5 to 1500 mbar. Low-pressure regulator with G 1/2" connection for a constant pressure in millibars.
- ranges 5–45, 10–400, 20–1000 and 50–1500 mbar
- flow 1,000 l/min, inlet 1 to 15 bar
- pressure gauge ⌀ 63 mm included
RPM 10 with adjusting screw
From 5 to 400 mbar. Low-pressure regulator with G 1" connection for fine setting of low pressures.
- ranges 5–45, 10–120 and 10–400 mbar
- flow 1,400 l/min, Kv 1.4 m³/h
- adjusting screw with lock nut
RPM 10 with T-handle
Flow 9,600 l/min. G 1" low-pressure regulator with a larger valve for high air consumption.
- ranges 15–700 and 200–1200 mbar
- flow coefficient Kv 8.4 m³/h
- T-handle with lock nut
DRPA G 1/8"
Flow 210 l/min. The smallest proportional regulator of the series: it sets the pressure according to an electric signal.
- ranges 0–6 and 0–10 bar
- signal 0–10 V or 4–20 mA
- brass body, 35 × 83 × 57 mm
DRPA G 1/4"
Flow 700 l/min. Proportional pressure regulator for ranges up to 0–16 bar.
- ranges 0–6, 0–10 and 0–16 bar
- signal 0–10 V or 4–20 mA
- brass body, 52 × 105 × 68 mm
DRPA G 1/2"
Flow 1,400 l/min. The largest proportional regulator of the series, for high flow.
- ranges 0–10 and 0–12 bar
- signal 0–10 V or 4–20 mA
- aluminium body, 70 × 136 × 85 mm
DRPA ANALYSE software
Set-up from a PC. Software with RS-232 converter for DRPA proportional regulators.
- shows set and actual pressure
- zero point, range, ramp, P, PI, PID control
- recording of the control process and diagnostics
RPM W bracket
For the RPM 12. Mounting bracket for fixing the RPM 12 regulator to a wall or frame.
- stainless steel
- 152 × 90 × 41 mm
- holes ⌀ 6.5 mm and slots 9 mm
Not sure which regulator to choose? The overview of pressure regulators also includes regulators with a pressure gauge, precision and pilot-operated series.
All pressure regulatorsAirCom regulators at a glance
| RPM low-pressure regulators and DRPA proportional pressure regulators | ||||
|---|---|---|---|---|
| Series | Connection | Regulation | Flow | Operation |
| RPM 12 | G 1/2" | 5–45 / 10–400 / 20–1000 / 50–1500 mbar | 1,000 l/min | handwheel |
| RPM 10 | G 1" | 5–45 / 10–120 / 10–400 mbar | 1,400 l/min | adjusting screw |
| RPM 10 | G 1" | 15–700 / 200–1200 mbar | 9,600 l/min | T-handle |
| DRPA | G 1/8" | 0–6 / 0–10 bar | 210 l/min | signal 0–10 V or 4–20 mA |
| DRPA | G 1/4" | 0–6 / 0–10 / 0–16 bar | 700 l/min | signal 0–10 V or 4–20 mA |
| DRPA | G 1/2" | 0–10 / 0–12 bar | 1,400 l/min | signal 0–10 V or 4–20 mA |
RPM: inlet pressure 1 to 15 bar, flow according to the manufacturer at 6 bar inlet and the highest outlet pressure of the range, pressure gauge ⌀ 63 mm included. DRPA: inlet pressure max. 12 bar (0–12 bar range 14 bar, 0–16 bar 18 bar), flow at 6 bar inlet and 5 bar outlet, 24 V DC supply, M12 connector; the 0–6 bar range only with a 0–10 V signal.
How to choose and connect an AirCom regulator
1. Manual or electric setting
An RPM regulator holds a constant low pressure that you set once by hand. If the machine control system is to change the pressure, choose a DRPA proportional regulator.
2. Range and size
Choose the smallest range that your pressure fits into – the setting will be finer. Choose the size by the flow in the table above. Mind the units: 1 bar = 1,000 mbar.
3. Prepare the air
Install a compressed air filter upstream of the regulator. The DRPA works with lubricated and non-lubricated air filtered to 50 µm; keep the inlet pressure at least 10 % above the highest pressure to be set.
4. Connect and set
Connect the regulator according to the arrow on the body. On the RPM always set the pressure upwards and lock it with the lock nut. Connect the DRPA via the M12 connector to the 24 V DC supply and the control signal.
Frequently asked questions
- What is the difference between RPM and DRPA?
- The RPM holds a constant low pressure from 5 to 1500 mbar that you set by hand. The DRPA sets a pressure of 0 to 16 bar according to an electric signal from the control system and constantly monitors the outlet pressure with a sensor.
- Does the RPM regulator come with a pressure gauge?
- Yes, a ⌀ 63 mm pressure gauge with a scale matching the range is included. It screws into one of the two G 1/4" side ports.
- Do I need software for the DRPA?
- No, the regulator is factory-set. The software with RS-232 converter is useful if you want to change the zero point, range, ramp or control parameters, monitor the pressure curve or troubleshoot.
- What does the DRPA do if the signal or supply fails?
- It exhausts the outlet. It fills and exhausts the outlet with the same flow and consumes no air itself.
- What does the manufacturer call these regulators?
- The RPM 12 corresponds to type AirCom R161-04, the RPM 10 to type R160-08 and the DRPA to the PP series (proportional regulators with digital control). The full RPM type designation is on each regulator’s product page.
- Where can I find all regulators?
- RPM regulators are in the category RPM low-pressure regulators, DRPA in the category proportional pressure regulators – together with other proportional regulators.
Technical data according to the catalogues of the manufacturer AirCom Pneumatic GmbH (Ratingen, Germany).