Seyang Coporation

Products

Through autonomy and creativity Global Leading Engineering Company Seyang Corporation.

DSE Series

External Heater-type
desiccant air dryer

It has 8-10% of regeneration air consumption, maintains stable dew point temperature, and has the most simplified system, suitable for medium-sized or larger equipment.

DSE Series

Product Specifications

Maintains stable dew point temperature.
Most simple system in TSA type air dryers.
Suitable for medium-sized or smaller equipment.
8-10% of regeneration air consumption.

Structure Diagram

How it works

Moisture is absorbed by the adsorbent ashumid air at the inlet pointtravels up the drying tower.
Some dry air at theoutlet pointis heated by the external regenerative heater and descends towardsthe regeneration tower. Moisture of the adsorbent is evaporated, dried and discharged to the atmosphere through the purge valve.
Moisture in the regeneration tower is sufficiently dried, stopping the heater while regeneration air continues to be discharged, cooling the adsorbent.
As such, the 8-hour operating cycle is composed of 4 hours of drying, 2.3 hours of heating, and 1.5 hoursof cooling and pressure equalization.

Model Description

Maximum Inlet Temperature	55°C at Maximum
Ambient Temperature	5~49℃
Working Pressure	1.5~9.9 kg f/㎠
Power Supply	220/440V, 50/60Hz, 3￠

MODEL	Inlet Temp.: 38°C, Inlet Pressure: 7 ㎏f/㎠, Dew Point under pressure: -40°C and below
MODEL	Treating Flow Rate (㎟/MIN)	Max. Heater Capacity (KWH)	Avg. Power Consumption (KWH)	Activated Alumina Gel Charged volume (kgs/lower)
DSE-120	3.4	3.0	1.6	44
DSE-160	4.7	4.5	2.1	61
DSE-260	7.6	7.5	3.4	99
DSE-370	10.7	9.0	4.9	138
DSE-450	13	12.0	5.9	168
DSE-590	17	16.0	7.8	220
DSE-750	22	18.0	10.1	285
DSE-930	27	21.0	12.4	350
DSE-1130	33	24.0	15.1	428
DSE-1350	39	30.0	17.9	505
DSE-1750	51	36.0	23.4	661
DSE-2100	61	45.0	28.0	790
DSE-3000	87	63.0	39.9	1127
DSE-4100	119	87.0	54.7	1542
DSE-5400	156	112.0	71.7	2020

* Possible to manufacture models with operating pressure larger than 10 ㎏f/㎠.
* Possible to manufacture models larger than standard conditions mentioned above.

Conversion Coefficient

Table1- Conversion Coefficient by Inlet Pressure

Inlet Pressure (kgf/㎤)	2	3	4	5	6	7	8	9	10
Conversion Coefficient	0.38	0.5	0.63	0.75	0.88	1	1.12	1.25	1.37

Table2- Conversion Coefficient by Inlet Temperature

Inlet Temperature (℃)	25	30	35	38	40	43	45	50	55
Conversion Coefficient	2.0	1.52	1.72	1	0.9	0.78	0.7	0.56	0.44

Model Selection and
Calculating Working Volume Flow Rate

MODEL : DSE-750

What’s the working volume flow rate when inlet temperature is 40°C with inlet pressure of 5kgf/㎠ ?
Standard working volume flow rate of DSE-750: 22 N ㎥/min
Conversion Coefficient for 40°C of temperature: 0.9
Conversion Coefficient for 5kgf/㎠ of pressure: 0.75
* Working Volume Flow Rate = 22 N㎥/min x 0.9 x 0.75 = 14.85 N ㎥/min
Which model should be used when working volume flow rate is 35 N㎥/min with 45℃ of inlet temperature and 8 kgf/㎠ of inlet pressure ?
Adjusted working volume flow rate under standard Condition.
(38℃ of inlet temperature, 7kgf/㎠ of inlet pressure)
= 35 N ㎥/min / 0.7 (Conversion Coefficient for temperature) / 1.12 (Conversion Coefficient for pressure)
= 44.64 (N ㎥/min)
* DSE-1750 on the working volume flow rate index by model.

Specifications by
DSE model

MODEL	A	B	C	D	E	F	G
DSL-120	1050	975	850	770	220	2225	PT1. 1/2"
DSL-160	1120	1045	850	770	225	2175	PT1. 1/2"
DSE-260	1230	1155	850	770	220	2245	PT1 1/2"
DSE-370	1410	1310	1030	930	250	2350	PT 2"
DSE-450	1510	1410	1030	930	250	2375	PT 2"
DSE-590	1610	1510	1070	970	280	2395	2.1 2"
DSE-750	1710	1610	1100	1000	280	2415	2.1 2"
DSE-930	1810	1710	1100	1000	280	2480	3" F
DSE-1130	1910	1810	1175	1075	300	2495	3" F
DSE-1350	2200	2130	1350	1280	350	2565	3" F
DSE-1750	2350	2280	1450	1380	350	2640	4" F
DSE-2100	2500	2430	1540	1470	350	2700	4" F
DSE-3000	2800	2730	1650	1580	350	2990	6" F
DSE-3500	3000	2930	1750	1680	370	3045	6" F
DSE-4100	3250	3180	1800	1730	400	3000	6" F
DSE-5400	3500	3430	1950	1880	400	3285	8" F