RAC
Compressed air dosing pump.
- Constant
- Pneumatic adjustment
Compressed air dosing pumps
R Series
Compressed air operated diaphragm dosing pumps, suitable for dosing in car wash installations. They require compressed air free of lubricant and condensate, between 6 and 8 bar.
- Suitable for car washes
- Compressed air from 6 to 8 bar
- Pneumatic flow rate adjustment
- Horizontal, DIN rail or vertical mounting
12l/hMaximum flow rate
6barMaximum pressure
120/minMaximum injections
3Models
3 models
Model selection
Pump head: PP
RACV
Compressed air dosing pump with control solenoid valve.
- Constant
- Pneumatic adjustment
Pump head: PP
RACP
Compressed air dosing pump with button for manual priming.
- Constant
- Pneumatic adjustment
Pump head: PP
Overview
Model comparison
| Function | RAC | RACV | RACP |
|---|---|---|---|
| Dosing modes | |||
| Constant | ● | ● | ● |
| Pneumatic adjustment | ● | ● | ● |
| Functions | |||
| Control solenoid valve | – | ● | – |
| Priming button | – | – | ● |
| Versatile mounting | ● | ● | ● |
Operation
Dosing modes
Constant
The pump doses at a constant injection frequency, proportional to the flow rate percentage set with the analogue selector (0 – 100%).
Models: RAC, RACV, RACP
Pneumatic adjustment
The injection frequency is set as a percentage with the front knob, up to 120 injections per minute: each cycle lasts approximately 0.5 seconds, half with the pump supplied with air and half without supply.
Models: RAC, RACV, RACP
Technical data
Performance and configurations
Manual air bleed
Suitable for most chemicals: the standard configuration for the most common applications.
| Code | Max pressure (bar) | Max flow rate (l/h) |
|---|---|---|
| RAC 0612 | 6 | 12 |
| RAC 0606 | 6 | 6 |
| RAC 0603 | 6 | 3 |
| RAC 0601 | 6 | 1 |
Power supply options
- 230 VAC
- 110 VAC
- 48 VAC
- 24 VAC
- 24 VDC
Pump head materials
PP
Suitable for sodium hydroxide (caustic soda).
Technical support
Troubleshooting and error messages
The R Series pumps have no electronics: most faults can be traced back to the compressed air supply or to maintenance.
Insight: the pump does not prime and does not dose →Compressed air
R pumps require a constant air supply, preferably at 6 bar (± 10%), free of oil and condensate. The maximum frequency is 120 injections per minute (approximately 0.25 s of work and 0.25 s of return): the solenoid valve or PLC must be set accordingly.
Priming
Connect discharge, suction and drain, open the drain valve, set the knob to 100% and supply air; close the drain as soon as the chemical comes out. On the RACP the operation can be assisted with the manual priming button; with viscous chemicals use a 20 cc syringe applied to the drain.
Monthly check
At least once a month check the electrical and hydraulic connections, the condition of the diaphragm, the absence of leaks from tubes and fittings and any corroded parts.
If the problem persists, contact us. Before sending the pump for servicing, empty the pump head of chemical and dry it.
Summary
Main features
Control solenoid valve
The pump is actuated by a PLC via a solenoid valve.
Models: RACV
Priming button
A dedicated button allows the lines to be filled with the chemical to be dosed.
Models: RACP
Versatile mounting
Horizontal installation, on a DIN rail, or vertical installation by means of a dedicated bracket.
Technical advice
Tell us about your application: our technical staff will recommend the most suitable model, configuration and accessories.