DW series

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DW Series

Diaphragm Dosing Pumps

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Features & Cautions

  • Simple, Economic Vertical type Metering pump by rationalistic design.
  • Extremely good life by long operation.
  • The range of effective adjustment stroke : 15~100%
  • The temperatures of pumping liquid : 0~50℃ (Material : PVC), 0~80℃ (Material : SUS)
  • The viscosity of pumping liquid.
    – Model DWS & DWM : Below 50cp – Model DWA & DWB & DWC : Below 1000cp
  • The capacity increases the twice or three times or even more depends on head number.
  • Above specifications are that should be changeable due to improvement etc without any notice.

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The motor is 3 phase, 220/380v. The type is diaphragm metering pump.
According to fluid type, material of headcan be changed such as PVC, SUS304, 316, TEFLON, PVDF.
The range of capacity is from 25cc/min to 35000cc/min, but attach the head one more in parallel, capacity might be double.

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Capacity – Pressure Selection Table

Model No. of stroke SPM Dis. Capacity L/min Max.dis. Motor Joint size
50Hz 60Hz 50Hz 60Hz
DWS 10 48 58 0.02 0.025 10 0.2 KS 10K
15A
20 48 58 0.04 0.05
21 96 116 0.08 0.1
DWM 20 48 58 0.16 0.2
21 96 116 0.41 0.5
30 48 58 0.25 0.3
31 96 116 0.65 0.8
DWA 20 48 58 0.8 1 10 KS 10K
20A
21 96 116 1.7 2.1 8
30 48 58 1.4 1.7 10
31 96 116 2.9 3.5 8
DWB 40 48 58 3.4 4.1 8 0.4 KS 10K
25A
41 96 116 7 8.5 5
50 48 58 4.5 5.5 7
51 96 116 9.1 11 5
60 48 58 6.6 8 7 0.75
61 96 116 13.3 16 4
DWC 51L 96 116 17 20.5 5 KS 10K
40A
61L 96 116 20 25 5
71L 96 116 25 31 5 1.5
81L 96 116 29 35 4

 

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Motor Capacity

dw_0.2KW dw_0.4KW dw_0.75KW dw_1.5KW dw_Explosion
0.2KW 0.4KW 0.75KW 1.5KW Explosion proof
Special order
  • Motor capacity depends on pump capacity.

 

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Head Material

dw_head

 

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DW Series performance graph

dwseries_graph

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DW Series Standard Construction Materials

No Part name / Symbol of material PVCE S7S7 S2S2 P4CE
1 Ball valve Ceramics SUS304 SUS316 Ceramics
2 Valve seat PVC SUS304 SUS316 PTFE
3 Gasket PTFE PTFE PTFE PTFE
4 Diaphragm head PVC SUS304 SUS316 PTFE
5 Diaphragm PTFE/EPDM PTFE/EPDM PTFE/EPDM PTFE/EPDM
6 Back up plate SS41 SS41 SS41 SS41
7 Ball guide PVC SUS304 SUS316 PTFE
8 Joint SUS304 SUS316 PTFE PTFE
9 Loick nut PVC SUS304 SUS316 PTFE
10 Flange SUS304 SUS316 PVC PTFE

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Dimension (Unit/mm)

dw_dws_1   dw_dwa_1

 

형식 A B C D E F G H I J K L
DWS 10, 20, 21 605 330 341 263 145 191 210 240 125 165 75 15A
DWS-G 10, 20, 21 471 330 258 213 145 141 210 240 125 165 75 15A
DWM 21, 21, 30, 31 605 330 341 263 175 175 210 240 125 165 75 15A
DWM-G 21, 21, 30, 31 471 330 258 213 175 125 210 240 125 165 80 15A
DWA 21, 21, 30, 31 605 345 330 263 236 145 210 240 145 185 80 20A
DWA-G 21, 21, 30, 31 473 345 261 213 236 97 210 240 125 165 93 20A
DWB 40, 41, 50, 41 694 444 387 307 312 151 250 280 160 200 115 25A
60, 61 694 444 387 307 330 142 250 280 160 200 115 25A
DWC 51L, 61L, 71L, 81L 730 494 393 337 399 138 290 320 200 260 116 40A

 

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