Refrigeration dryer RDS-235 – G 1 1/2", 3,917 l/min
Code: RDS-235
Related products
Product detailed description
The RDS-235 refrigeration dryer dries compressed air to a pressure dew point of +3 °C, i.e. water class 4 according to ISO 8573-1. It handles 3,917 l/min (235 m³/h) at 7 bar, operates at up to 16 bar and connects via a female thread G 1 1/2"; power supply 230/50 V/Hz.
It belongs to the Omega Air RDS refrigeration dryer range with R513A refrigerant, an automatic zero air loss condensate drain and a controller that displays the dew point.
Technical parameters
| Parameter | Value |
|---|---|
| Flow rate at 7 bar | 235 m³/h (3,917 l/min) |
| Maximum working pressure | 16 bar |
| Pressure dew point | +3 °C (water class 4 according to ISO 8573-1) |
| Connection | female thread G 1 1/2" |
| Power supply | 230/50 V/Hz |
| Power input / consumption | 0.73 / 0.6 kW |
| Refrigerant | R513A, charge 0.89 kg |
| Cooling air | 700 m³/h |
| Heat rejection | 1.9 kW |
| Pressure drop | < 0.2 bar |
| Inlet air temperature | up to +55 °C |
| Room temperature | +1 to +45 °C |
| Noise level at 1 m | < 65 dB(A) |
| Condensate drainage | automatic, zero air loss |
| Communication | MODBUS, remote on/off, alarm output |
| Control panel protection | IP 65 |
| Weight | 56 kg |
Dimensions
Dimensions according to the manufacturer: width A 495 mm, depth B 558 mm, height C 826 mm; weight 56 kg. The dryer is moved by forklift.
Flow rate under other conditions
The nominal flow rate of 3,917 l/min applies to +25 °C room temperature, +35 °C inlet temperature, 7 bar and +3 °C dew point. Under other conditions, multiply it by the manufacturer’s correction factors. For example, at 10 bar, +40 °C inlet temperature and +30 °C room temperature, the RDS-235 handles 3,917 × 1.14 × 0.83 × 0.96 = 3,558 l/min.
Pressure factor
| Pressure bar | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Correction factor | 0.39 | 0.60 | 0.77 | 0.86 | 0.93 | 1.00 | 1.05 | 1.10 | 1.14 | 1.18 | 1.21 | 1.24 | 1.27 | 1.30 | 1.32 |
Dew point factor
| Dew point °C | 3 | 5 | 7 | 10 |
|---|---|---|---|---|
| Correction factor | 1.00 | 1.10 | 1.21 | 1.39 |
Inlet air temperature factor
| Temperature °C | ≤ 25 | 30 | 35 | 40 | 45 | 50 | 55 |
|---|---|---|---|---|---|---|---|
| Correction factor | 1.20 | 1.12 | 1.00 | 0.83 | 0.69 | 0.59 | 0.50 |
Room temperature factor
| Temperature °C | ≤ 25 | 30 | 35 | 40 | 45 |
|---|---|---|---|---|---|
| Correction factor | 1.00 | 0.96 | 0.90 | 0.82 | 0.72 |
How it works
The air passes through the three-stage heat exchanger module: the dried air pre-cools it, the refrigerant in the evaporator cools it so that the water vapour condenses, the demister separates the water droplets and the drain discharges them. The dry air is warmed up again at the outlet, so no moisture condenses on the pipework.
Equipment
The automatic condensate drain discharges water without air loss. The controller displays the dew point and signals alarms; the dryer communicates via MODBUS and can be switched on and off remotely. The refrigerant circuit is protected by a temperature switch and a pressure switch.
R513A refrigerant
R513A refrigerant has zero ozone depletion potential and low global warming potential, and it has replaced the former R134a refrigerant.
Position in the system
The dryer goes downstream of the compressor and air receiver. Install a 3 µm pre-filter upstream of it, for example one of the basic compressed air filters; downstream, depending on the required purity, install a fine pre-filter and a microfilter. For a dew point below 0 °C, you need a desiccant dryer.
Accessories
For maintenance without shutting down the air line: bypass piping RDP-180-BP.
For other sizes, see RDS refrigeration dryers.
Additional parameters
| Category: | Omega Air RDS refrigeration dryers for compressed air |
|---|---|
| Pressure: | 16 bar |
| Connecting: | 1 1/2" |
| Motor power: | 730 W |
| Mains voltage: | 230/50 V/Hz |
| Noise: | 65 dB(A) |
| Dimensions: | 495 × 558 × 826 mm |
| Weight: | 56 kg |
| Condensate discharge: | Automatic |
| Flow: | 3,917 l/min |
| ISO class: | x/4/x - ISO 8573.1 |
| Equipment: | Control unit LED display, Alarm for remote management, Automatic draining of condensate |
| Refrigerant: | Refrigerant R513A |
| Pressure dew point: | +3 °C |
| Dryer type: | Condensation dryer |
Product rating
Be the first who will post an article to this item!
Alfa and Omega from SloveniaIn the Slovenian capital, Ljubljana, there is a company specialized in compressed air treatment, production of industrial filters and filter inserts, separators or special membrane dryers and other products. Omega Air was founded in 1988 as a family business and soon secured a place in the industry. Over the years, Omega Air's workforce has also grown with increasing production and today the company employs more than 250 people. |
 |
 |
Omega products are used everywhereA wide range of applications is typical for Omega Air products. Its products are used in heavy industry as well as by private entities. Slovenia's footprint is thus noticeable in industrial sectors such as electrical, gastronomy, pharmaceuticals, moto and also in the chemical-industrial sector. However, the company's main product is special filters, which are exported all over the world. |
No greenhorn in the industryOmega Air also boasts several proprietary innovations and patents that originate in the development department. The company has also been awarded several times for its innovative solutions at the International Engineering Fair itself, which is traditionally held in Hannover, Germany. The Omega Air product range is brought to you by our air compressors company below. |
What Omega Air produces:
|