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HMW Series Desiccant Air Dryers

HMW series Desiccant Compressed Air Dryers - 254 – 4,280 m3/h

For flow rates from 254 – 4,280 m3/h

Standard: 10 bar 
Option: 16 bar

Benefits and Features

  •         Internal-heat regeneration system
  •         Economical regeneration process
  •         Long life of the heater elements and desiccant
  •        Energy saving with dew point control
  •         Mechanically stable, low-dusting desiccant
  •         Inlet and outlet filter included
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Features

HMW series desiccant dryers use electrical heaters inside of the desiccant bed for the regeneration of the saturated desiccant. The direct contact of the finned heater tubes with the desiccant bed makes most efficient use of the regeneration energy.

A small part of the compressed air flow removes the moisture and cools down the desiccant. No ambient pollution or moisture affects the regeneration process. A parallel drying phase during cycle change-over eliminates any temperature or dew point fluctuation. With the optional Energy Management System device EMS, the standard drying time per receiver of 4 hours can be prolonged to a maximum of 20 hours, resulting in energy savings of up to 80%.

Energy management system (EMS) for heatless desiccant dryers
Desiccant Dryers have to cope with different operating conditions and are therefore selected for the most adverse conditions. 
According to ISO 7183, the standard operating conditions are: 
working temperature 35°C and operating pressure 7 bar gauge.

A higher temperature or a lower operating pressure requires a higher adsorption and regeneration capacity. 

On the other side, during phases of reduced operation (at night, during weekends or under winter conditions), where the maximum adsorption performance is not required, the regeneration performance should continually adapt to the changing conditions.

Specifications

 

Model FlowRate* Connection Operation Control Power Consumption (kW) Pre-filter After-filter
  m3/h   V/Ph/Hz Average Installed    
HMW 74 245 1" 400/3/50 95-230/1/50 1.7 3.6 F08-B-HF DF08-HTA
HMW 120 400 1 1/2" 2.7 5.4 F12-B-HF DF12-HTA
HMW 196 653 1 1/2" 3.6 7.2 F12-B-HF DF12-HTA
HMW 236 785 2' 4.5 9.0 HF5-52 HF6-52HTA
HMW 308 1,026 2' 5.4 10.8 HF5-56 HF6-56HTA
HMW 385 1,282 DN 80 7.2 14.4 HF5-56 HF6-56HTA
HMW 575 1.916 DN 80 10.8 21.6 H F5-56 HF6-56HTA
HMW 675 2,250 DN 80 12.6 25.2 H F5-60 H F6-60HTA
HMW 801 2,670 DN100 14.4 28.8 HF5-60 HF6-60HTA
HMW 1077 3,590 DN100 18.9 37.8 HF5-64 HF6-64HTA
HMW 1284 4,280 DN100 22.5 45.0 HF5-68

HF6-68HTA

*ISO 7183, based on the intake volume of the compressor at +20°C and bar (a), operating pressure 7 bar (g), inlet temperature 35°C, ambient or cooling water temperature 25 °C, pressure dew point -40 °C. 

Dimensions

Model Dimensions Weight
A B C
    mm   kg
HMW 74 670 450 2,170 300
HMW 120 855 500 2,280 450
HMW 196 905 550 2,260 670
HMW 236 1,035 600 2,750 800
HMW 308 1,085 650 2,750 950
HMW 385 1,475 1,060 3,050 1,300
HMW 575 1,600 1,110 3,050 1,900
HMW 675 1,600 1,160 3,050 2,110
HMW 801 1,750 1,185 3,175 2,400
HMW 1077 1,750 1,235 3,175 3.100