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Heated Regenerative Desiccant Dryer

The KXR series heated regenerative desiccant dryer is designed with an external electric heater to heat the dried compressed air that is utilized for desiccant regeneration. The heated air shows better moisture absorption effect when it meets activated alumina, and this process only requires 6% of dried compressed air, much less than that of heatless desiccant dryers.

The heated desiccant compressed air dryer offers outlet pressure dew point of -40℃, and air flow capacity from 0.7 m3/min to 510m3/min.

Features
1. Famous Brand PLC Controller

This heated regenerative desiccant dryer takes advantage of Siemens S7200 or S7300 PLC controller to realize all the functions, and also adopts the 7" touch screen to display the working status.

2. Low Power Heater with High Temperature Interlock
The compressed air treatment equipment is available with an energy efficient external heater for efficient regeneration. The heater is protected by an incoloy alloy sheath, and comes with an interlock alarm function to provide continuous monitoring of heater sheath temperature. It will be powered off if the temperature is too high.

3. High Performance Desiccant
Desiccant in two towers is of great importance for the drying result, and we use high quality activated alumina to offer perfect performance.

4. Pressure Gauges
The same as many of our other regenerative dryers, this heated regenerative desiccant dryer is also designed with stainless steel pressure gauges installed on the two towers. Thus, users are allowed to see the pressure level clearly during working process.

5. High Performance Pneumatic Valves
The oil-less pneumatic valves are especially designed to fit for high temperature applications, and these valves have stainless steel internals as well as PTFE seats.

6. Particulate Filter
The particulate filter guarantees the safety of downstream equipment by capturing the fine desiccant particles.

7. ASME Certificated Pressure Vessels (Optional)
This range of regenerative desiccant air dryer is available with optional pressure vessels which meet the requirements of ASME Section VIII, Div. 1.

8. Mounted Pre-filter and After-filter (Optional)
For some models of the heated regenerative desiccant dryer, pre-filter and after-filter are provided to offer better drying results.

9. Tower Insulation (Optional)
The tower insulation is available on customer’s request, and it achieves enhanced regeneration efficiency. Moreover, the contact barrier realizes safe running.

10. Dew Point Display (Optional)
This adsorption dryer uses a high precision ceramic sensor to detect the dew point, and relevant data are showed on the display. In addition, high dew point alarming function is also realized.

11. NEMA 4 Rated Electrical Enclosure (Optional)
The optional electrical enclosure for the heated regenerative desiccant dryer is designed and produced according to NEMA 4 and IP66 standards. It serves to protect electrical components from falling and prevents external condensation.

Operating Conditions
Normal Inlet Pressure 7 bar (g)
Normal Inlet Temperature 38℃
Pressure Dew Point -40℃
Max. Operating Pressure 10 bar
Min. Operating Pressure 4 bar
Max. Inlet Temperature 50℃
Min. Inlet Temperature 10℃
Standard Power Supply 380V/3Ph/50Hz
Specifications
Model Flow Capacity Heater (kW) Dimensions Air Connection Weight
m3/min CFM L (mm) W (mm) H (mm) (BSP) (kg)
KXR-5 0.7 25 0.9 690 500 915 1/2" 120
KXR-10 1.6 56 0.9 690 500 1298 1" 190
KXR-20 2.6 92 1.5 780 500 1324 1" 280
KXR-30 3.8 134 1.5 860 540 1350 1" 320
KXR-60 7.0 247 2.4 1010 700 1558 1 1/2" 480
KXR-75 8.5 300 2.4 1010 700 1785 1 1/2" 540
KXR-100 11.5 406 4.5 1240 800 2232 2" 650
KXR-120 13 476 4.5 1240 800 2232 2" 690
KXR-150 17 600 5.4 1280 860 2360 DN65 780
KXR-200 23 812 7.5 1320 860 2477 DN65 920
KXR-250 27 953 9 1700 930 2570 DN65 1050
KXR-300 34 1200 10.8 1750 960 2626 DN80 1200
KXR-400 45 1588 15 1850 1060 2646 DN100 1530
KXR-500 55 1941 18 1850 1060 2646 DN100 1750
KXR-600 65 2294 22.5 2160 1240 2784 DN125 2230
KXR-800 87 3071 28.8 2416 1440 2827 DN150 2710
KXR-1000 110 3883 37.5 2980 2120 2990 DN150 4130
KXR-1200 130 4589 45 3080 2220 3030 DN150 4700
KXR-1500 160 5648 56 3180 2320 3316 DN200 5800
KXR-2000 210 7413 72 3380 2520 3360 DN200 7370
KXR-2500 260 9178 90 3580 2720 3596 DN250 9020
KXR-3000 320 10943 112.5 3580 2970 3606 DN250 11900
KXR-3500 360 12708 124.8 3720 3220 3720 DN300 13100
KXR-4000 410 14473 145.8 3910 3370 3910 DN300 14800
KXR-5000 510 18003 170 4200 3600 4200 DN350 16000

Note: The flow capacity is based on the following conditions: Air FAD 20℃/1 bar (a), pressure 7 bar (g), relative humidity 100%, air inlet temperature 35℃, pressure dew point -40℃.

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