Heatless Air Dryer


Heatless Air Dryer

Specifications

Residual Oil Upto 0.1 PPM
Range Upto 1140 SCFM flow
Pressure 10 Kg / cm2
Moisture (-)40 / (-)700C Atm. Dew Point
Dust 5 u
Application To various engineering applications where atmospheric dew point is preferred (-) 40 °C and above.
Brand Drytech

The presence of oil, moisture and dust particles in compressed air is a well known fact for industrial applications. As the technology advanced with inducation of sophisticated modern machineries working on compressed air, the usage of recommended quality class of air as per machines manufacturer or international Standard Organisation (ISO) or Pneurope recommendation has become necessary. The usage of filtered, dry air as per above recommendations results in reduced wear and tear, increased machine uptime, lower rejections, better product quality and above all considerable saving in energy.

Drytech Air Drying Unit - HD series (Heatless) type offers quality class of air desired as per various recommendations for different pneumatic applications. The stationary air drying unit with negligible maintenance, lesser operating cost and longer service life is the right selection for pneumatically operated machines which needs purified compressed air.

Salient Features

  • Operating on ADSORP principle; Hence prevents entrainment of moisture in the pipe line however long is may be
  • The most compact skid mounted unit supplied in READY FOR USE state by connecting compressed air at inlet and outlet
  • The stationary working system and requires negligible maintenance
  • Assured atmospheric dew point equal to (-) 40 deg. C. or (-) 70 deg C as required
  • Ideal purging as per desiccant manufacturers instruction for regeneration
  • Lesser pressure drop in total unit
  • Modified purge silencer causing less noise
  • Designed for Indian atmospheric condition
  • Easy for installation and commissioning


Sequence of Drying Operation : It is as per following three stages

Prefiltration : The dust particles, condensed oil and moisture in liquid droplets and aerosol from is per-filtered by set of pre-fine filter combination, The Compressed air with only vapourised from of moisture is permitted to enter the desiccant bed tower.

Drying : The Saturated Compressed air is dried in desiccant bed tower.

Postfiltration : The dry compressed air is refiltered in after filter for removal of residual fine particles if any.

Operation : The complete ADU operates in following three modes.

Drying Mode : The wet saturated compressed air coming from set of pre filters is led through one of the inlet valve (Operated by electronic timer) to the desiccant bed tower. The highly hygroscopic desiccant bed with sufficient air resident time due to proper velocity results in absorbing the moisture vapour and dries the air to desired level of dew point.

Regeneration Mode : The small amount of dried air at almost atmospheric pressure is led through purge line to the saturated desiccant bed tower. The absorbed moisture in desiccant bed at earlier drying mode is desorbed in purged dry air and regeneration takes place.

Pressurisation Mode : To avoid the pressure fluctuations at outlet of dryer, the regeneration mode tower is put in for pressurisation before it switches to drying mode. The entire operation is electronic timer controlled and automatic at various modes shown above for proper sequence and timing. The total cycle time is 10 minutes or 4 minutes as per timer selection for required dew point.


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Technical Specification 01

FLOW CONN TYPE OVERALL DIMENSIONS IN MM WT. KGS
(APPX)
CONVERSION FACTOR AT VARIOUS PRESSURE  
Nm/HR SCFM END CONN Depth Width Height    
HD V 9 5 1/4" 1/4"BSP SC. F 150 550 670 35 Op.Pressure Kg / CM2g Pressure Factor
HD V1 17 10 1/2" 1/2" BSP SC. F 410 700 1050 50    
HD V2 25 15 1/2" 1/2" BSP SC. F 410 750 1280 70 4 0.63
HD V3 34 20 1/2" 1/2" BSP SC. F 410 750 1670 90 5 0.75
HD 001 50 30 1/2" 1/2" BSP SC. F 450 750 1850 120 6 0.87
HD 001 V 80 45 3/4" 3/4" BSP SC. F 450 800 1680 150 7 1
HD 002 100 60 3/4" 3/4" BSP SC. F 500 850 1780 170 8 1.13
HD 002 V 130 75 3/4" 3/4" BSP SC. F 500 850 1960 198 9 1.25
HD 003 V 170 100 1" 1" BSP SC. F 550 1000 1650 227 10 1.35
HD 004 V 240 140 1 1/2" FLGD. ASA 150 # 550 1000 2100 274 - -
HD007 340 200 1 1/2" FLGD. ASA 150 # 600 1180 2230 350 - -
HD 009 V 475 280 2" FLGD. ASA 150 # 600 1300 2300 498 - -
HD 012 V 650 380 2" FLGD. ASA 150 # 1150 1450 1950 650 - -
HD 016 V 850 500 2 1/2" FLGD. ASA 150 # 1275 1600 2350 790 - -
HD 020 V 1050 620 3" FLGD. ASA 150 # 1380 1725 2480 925 - -
HD 025 1290 760 3" FLGD. ASA 150 # 1530 1850 2550 1125 - -
HD 038 1940 1140 4" FLGD. ASA 150 # 1800 1690 2625 1570 - -

Technical Specification 02

MODEL FLOW ENDCONN CONN. TYPE OVERALL DIMENSIONS IN MM WT. KGS APRROX.
  NM3 / HR SCFM DEPTH WIDTH HEIGHT
HDV 9 5 1/4" 1/4" BSP SC.F 150 550 670 35
HDV1 17 10 1/2" 1/2" BSP SC.F 410 700 1050 50
HDV2 25 15 1/2" 1/2" BSP SC.F 410 750 1280 70
HDV3 34 20 1/2" 1/2" BSP SC.F 410 750 1670 90
HD001 50 30 1/2" 1/2" BSP SC.F 450 750 1850 120
HD0001V 80 45 3/4" 3/4" BSP SC.F 450 800 1680 150
HD002 100 60 3/4" 3/4" BSP SC.F 500 850 1780 170
HD002V 130 75 3/4" 3/4" BSP SC.F 500 850 1960 198
HD003V 170 100 1" 1" BSP SC.F 550 1000 1650 227
HD004V 240 140 1 1/2" FLGD. ASA 150# 550 1000 2100 274
HD007 340 200 1 1/2" FLGD. ASA 150# 600 1180 2230 350
HD009V 475 280 2" FLGD. ASA 150# 600 1300 2300 498
HD012V 650 380 2" FLGD. ASA 150# 1150 1450 1950 650
HD016V 850 500 2 1/2" FLGD. ASA 150# 1275 1600 2350 790
HD020V 1050 620 3" FLGD. ASA 150# 1380 1725 2480 925
HD025 1290 760 3" FLGD. ASA 150# 1530 1850 2550 1125
HD038 1940 1140 4" FLGD. ASA 150# 1800 1690 2625 1570


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