Refrigeration dryer Hankison HDI-780 – G 2", 13,000 l/min
Code: HDI-780
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Product detailed description
The Hankison HDI-780 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 13,000 l/min (780 m³/h) at 7 bar, 850 m³/h at a dew point of +5 °C and 920 m³/h at +7 °C. It operates at up to 16 bar, connects via a G 2" thread; power supply 400/50 V/Hz.
Dry air protects the compressed air network, air receiver, valves, pneumatic cylinders and tools against corrosion and water. The patented aluminium heat exchanger uses the cold of the outlet air to pre-cool the incoming air, which saves energy.
It belongs to the range of Hankison HDI refrigeration dryers: 17 sizes from 200 to 21,667 l/min with the same heat exchanger design.
Technical parameters
| Parameter | Value |
|---|---|
| Flow rate at dew point +3 °C | 780 m³/h (13,000 l/min) |
| Flow rate at dew point +5 / +7 °C | 850 / 920 m³/h |
| Max. working pressure | 16 bar |
| Pressure dew point | +3 °C (water class 4 according to ISO 8573-1) |
| Inlet air temperature | up to +60 °C |
| Room temperature | up to +50 °C |
| Power supply | 400/50 V/Hz |
| Power input | 1.67 kW |
| Connection | G 2" (BSPP) |
| Refrigerant | R513A |
| Condensate drainage | zero-loss electronic drain |
| Control | electronic panel with dew point display and messages |
| Fan | switched by a pressure switch; high-pressure switch on the circuit |
| Dimensions W × D × H | 720 × 750 × 1,360 mm |
| Weight | 164 kg |
| Electrical equipment protection | IP42 |
Flow rate by pressure dew point
| Pressure dew point | Flow rate m³/h | Flow rate l/min |
|---|---|---|
| +3 °C | 780 | 13,000 |
| +5 °C | 850 | 14,167 |
| +7 °C | 920 | 15,333 |
Flow rate at a pressure of 7 bar, inlet air at +35 °C and a room temperature of +25 °C (ISO 7183). If a higher dew point is enough for you, the dryer can handle more air.
Cabinet and dimensions
Width 720 mm, depth 750 mm, height 1,360 mm, weight 164 kg. Leave at least 500 mm of free space around the dryer so that the condenser has enough air and the dryer is accessible for servicing.
How it works
In the heat exchanger, the air is first pre-cooled by the dry air leaving the dryer, then the refrigerant cools it to a dew point of +3 °C and the water vapour condenses. The separator removes the droplets, the condensate leaves through the drain and the dry air is warmed up again at the outlet.
Condensate drainage and control
The zero-loss drain monitors the condensate level with a sensor and only opens when there is something to drain – no compressed air escapes. The panel shows the pressure dew point and the load, reports faults with a code (HtA, Ht2 high dew point, PF1 sensor) and uses the ESA energy-saving mode to protect the heat exchanger from freezing. The alarm can be transmitted to a remote location via a volt-free contact.
Installation and maintenance
- a pre-filter with a filtration grade of at least 10 µm belongs upstream of the dryer
- a location protected from the weather and sunlight, with at least 500 mm of free space around the dryer
- the manufacturer recommends a bypass line for maintenance; route the condensate through an oil-water separator
- room temperature up to +50 °C, inlet air up to +60 °C
- after switching on the main switch, wait 8 hours before starting the dryer for the first time
- clean the drain strainer weekly and blow out the condenser regularly with compressed air
Where it is suitable
- chemicals, pharmaceuticals and petrochemicals
- electronics manufacturing
- engineering production, pneumatic tools and cylinders
- paint shops and surface treatment
Position in the system
The dryer goes downstream of the compressor and the pre-filter. The inlet air may be at most +60 °C. The dryer does not capture solid particles and oil – depending on the required purity class, add filters according to ISO 8573-1 downstream of it. For a dew point below 0 °C, you need a desiccant dryer.
For other sizes, see Hankison HDI refrigeration dryers.
Additional parameters
| Category: | Compressed air dryers for compressors |
|---|---|
| Pressure: | 16 bar |
| Connecting: | 2" |
| Motor power: | 1,670 W |
| Mains voltage: | 400/50 V/Hz |
| Noise: | 66 dB(A) |
| Dimensions: | 720 × 750 × 1,360 mm |
| Weight: | 164 kg |
| Condensate discharge: | Automatic, Electronic |
| Flow: | 13,000 l/min |
| ISO class: | x/4/x - ISO 8573.1 |
| Equipment: | Control unit LED display, Automatic draining of condensate |
| Refrigerant: | Refrigerant R513A |
| Pressure dew point: | +3 °C |
| Dryer type: | Condensation dryer |
| Dimensions: | 779 x 720 x 1 369 mm |
| Weight: | 164 kg |
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Hankison joined forces with SPXThe company Hankison has been operating on the commercial market since 1948 and over the years has always been a pioneer in the field of compressed air treatment. To this day, it continues to expand its capabilities and technology in the manufacture of dryers and filters for compressed air. Currently, Hankison has joined forces with a group of other companies with a similar focus - SPX Flow Technology. Thanks to this step, the company is able to continuously innovate and improve the quality of its product offering. They put their shared experience to good use in state-of-the-art laboratories to ensure that the resulting products are the best that can be found on the world market. Of course there are various quality system certifications (e.g. ISO 9001:2009 and ISO 14001:2009). This combination is also reflected in the final price of the products, which will surely please your wallet. |
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