Rotary Gear Pump Type RDMS

  • RDMS
  • RDMS
  • RDMS
  • RDMS
  • RDMS

General

ROTODEL Rotary gear pump type RDMS is all SS, simple four piece construction pump specially designed to handle thinner or thicker & even corrosive liquid having lesser or no lubricating value. The SS-316 herring bone Rotors runs on Teflon coated dry running DU bush bearing supported on bronze wearing plate, placed inside the pump casing, alternatively graphite/bronze wearing plate cum bushes are also provided for heavier viscous liquid application. The stuffing box is fitted with Z-pack sealant with provision to fit mechanical shaft Seal. The pump is provided with add-on type pressure relief valve.

  • Pump Body CF8
  • Front Cover CF8
  • Back Cover CF8
  • Gland Cover CF8
  • Rotar Gear SS-316
  • Stator Gear SS-316
  • Rotar Shaft EN-57/SS-430
  • Stator Shaft EN-57/SS-430
  • W.Plate - Bronze/Graphite
  • Bushes Teflon Coated DU
  • Shaft Seal - Z Pack/Mech. Seal
  • Key SS-316

The Hydraulic HP should be calculated by multiplying the unit HP with the duty point pressure, the viscous horse power of appropriate viscosity should be added to this from above chart. Margin for R.V. operation & Safety margin should be provided brfore fixing the drive HP. All model of RDMS series are basically design to run at 1440 RPM up to viscosity of 200 CST however in higher sizes above 2" the pump speed is required to be reduced with increase in viscosity for this refer viscosity speed curve or consult the works. Whir reducing the speed, the pump shaft should not be loaded with heavy gears or pulley use bearing block to take up such load.

Pump Model - Size - Capacity & Power Chart

Pump
Model
Capacity
at 1440 RPM
Power REQ. WT of
Bare
Pump
p.set
in KG
Port
Size
ASA-150
No Load
Viscous h.p.
Unit
HP/KG
Pres.
LPM US
GPM
M3/hr 200 CST 500 CST 750 CST
RDMS-050
1/2" NB
S 13.0 3.30 0.75 .075 0.11 0.19 0.034 8.5
M 16.6 4.40 1.00 0.10 0.15 0.25 0.045
RDMS-100
1" NB
S 30.0 7.92 1.80 0.16 0.28 0.40 0.088 9
M 37.5 9.90 2.25 0.20 0.35 0.50 0.110
RDMS-150
1 1/2" NB
S 60.0 15.8 3.60 0.32 0.52 0.60 0.176 12.0
M 75.0 19.8 4.50 0.40 0.65 0.75 0.220
RDMS-200
2" NB
S 100 26.4 6.00 0.40 0.68 0.80 0.272 22.0
M 125 33.0 7.50 0.50 0.85 1.00 0.340
RDMS-250
2 1/2" NB
S 150 40.0 9.00 0.71 0.94 1.13 0.405 28.0
M 200 52.9 12.00 0.95 1.25 1.50 0.540
RDMS-300
3" NB
S 250 66.0 15.00 0.94 1.28 1.50 0.615 40.0
M 333 88.0 20.00 1.25 1.70 2.00 0.820
RDMS-400
4" NB
S 415 111 25.00 2.92 4.17 5.00 1.100 68.0
M 500 132.9 30.00 3.50 5.00 6.00 1.320
RDMS-500
5" NB
S 600 158 36.00 4.00 6.00 7.20 1.568 110.0
M 750 197.5 45.00 5.00 7.50 9.00 1.960
RDMS-600
6" NB
S 1000 2630 60.00 5.63 7.50 9.00 2.700 170.0
M 1335 351 80.00 7.50 10.0 12.00 3.600
RDMS-600
6" NB
S 1611 451 100.0 10.0 12.5 15.0 3.988 200.0
M 2050 542 120.0 12.0 15.0 18.0 4.750

Dimension

RDMS-SERIES.jpg
Pump
Model
Pump Dimensions
Overall Mounting Shaft
A F V H2
G
B C E D1 D2
D3
D4 T D H H1 L L1 P Q
RDMS-050
1/2" NB
215 150 35 130
-
80 100 75 89 1/2" 08 10 12 80 69 26 38 04 13
RDMS-100
1" NB
251 160 45 135
-
90 110 91 108 1" 10 10 15 90 74 29 38 05 18
RDMS-150
1 1/2" NB
295 180 52.5 160
-
105 130 103 127 1.1/2" 10 10 21 100 80 34 45 06 24
RDMS-200
2" NB
334 200 60 170
-
110 150 117 152 2" 12 14 24 112 89.5 30 55 06 27
RDMS-250
2 1/2" NB
369 220 60 200
56
130 160 140 178 2 1/2" 15 15 28 132 106 40 65 08 31
RDMS-300
3" NB
453 235 75 241
56
160 220 161 190.5 3" 19 25 32 160 131 55 75 10 37
RDMS-400
4" NB
525 275 90 270
66
180 270 171 228 4" 19 25 36 180 145 50 85 10 41
RDMS-500
5" NB
600 300 90 305
66
200 280 200 254 4.1/2" 19 25 45 200 160 65 100 14 52
RDMS-600
6" NB
663 340 90 345
76
220 350 216 279 5" 22 25 50 225 179 70 120 14 57
RDMS-600
6" NB
710 356 100 360
76
240 380 244 343 6" 22 28 55 250 200 90 130 16 58

Uses

RDMS Pumps are used for handling thinner liquid at moderate pressurizing viz. foam pressurizing application for fire fighting, high pressure coolant transfer application for machine tools, light fuel pressurizing application or boiler & burners, heavy viscous liquid transfer application such as Molasses, Magma, Soap stock, Tar, Bitumen, Paints, Varnish, Crude oil etc.


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