3
190-999 Rev G
MT8 Specifications (Cont’d)
Performance Maximum Flow at Designated Pressure for Pumps with Electronic Gearbox Reducers - Imperial
Required Motor hp: 1/2
* Flow rates above 8 gph not guaranteed to meet API 675 Performance Standards; therefore, pump speed should be limited
to 315 rpm at 350 psi and 352 rpm at 1500 psi when using a 5:1 gear reducer and 1800 rpm motor. To reach 8 gph at
pressures above 1700 psi with the same reducer and motor, the VFD will need to be programmed for operation above 60 Hz.
Performance Maximum Flow at Designated Pressure for Pumps with Electronic Gearbox Reducers - Metric
Required Motor kW: 0.37
* Flow rates above 30.28 Iph are not guaranteed to meet API 675 Performance Standards. To reach a flow rate of
30.28 Iph with a 5:1 gear box and 1500 rpm motor, the VFD will need to be programmed for operation above 50 Hz.
Note: Systems vary. The MT8 pump must be calibrated once installed to ensure optimum performance. The API 675
Performance Standard is achievable for flow rates as low as 0.06 gph (or 0.2271 lph). Please contact the factory for assistance.
Gearbox
Part Number
All Pumps (lph)
Pump
rpm
Gear
Ratio
Motor
rpm
24 bar
34 bar
103 bar
172 bar
241 bar
112-400
1.567
1.492
1.353
1.221
1.101
15
100:1
1500
112-401
1.945
1.852
1.678
1.511
1.350
18.75
80:1
112-402
2.570
2.448
2.218
2.003
1.789
25
60:1
112-403
3.183
3.031
2.751
2.508
2.252
30
50:1
112-404
3.899
3.713
3.435
3.107
2.801
37.5
40:1
112-405
5.276
5.025
4.533
4.129
3.710
50
30:1
112-407
7.658
7.293
6.640
6.069
5.448
75
20:1
112-409
15.426
14.691
13.429
12.110
10.820
150
10:1
112-410
20.390
19.419
17.526
15.974
14.082
200
7.5:1
112-411
30.092*
28.659*
25.810*
23.091*
20.598*
300
5:1
Gearbox
Part Number
All Pumps (gph)
Pump
rpm
Gear
Ratio
Motor
rpm
350 psi
500 psi
1500 psi
2500 psi
3500 psi
112-400
0.479
0.473
0.429
0.387
0.349
18
100:1
1800
112-401
0.593
0.587
0.532
0.479
0.428
22.5
80:1
112-402
0.784
0.776
0.703
0.635
0.567
30
60:1
112-403
0.972
0.961
0.872
0.795
0.714
36
50:1
112-404
1.189
1.177
1.089
0.985
0.888
45
40:1
112-405
1.609
1.593
1.437
1.309
1.176
60
30:1
112-407
2.336
2.312
2.105
1.924
1.727
90
20:1
112-409
4.706
4.657
4.257
3.839
3.430
180
10:1
112-410
6.218
6.156
5.556
5.064
4.464
240
7.5:1
112-411
8.000*
8.000*
8.000*
7.320*
6.530*
360
5:1
