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What's New?
Field Service and Pump Repair
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More Info/Feedback/InquiriesAbout Imo Pump
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EMTEC pumps are designed with withstand the harsh environment of high pressure machine tool coolant service. Special hardening techniques produce wear resistance within the housing bores offering cost effective pumping.
Balance diameters at the inlet end of the idler rotors provide hydraulic balance eliminating thrust loads due to differential pressure. These diameters are grooved to better pass contaminant, are hardened to resist wear and rotate within hardened journals. Like the idler rotors, the power rotor (drive shaft) includes a hardened and specially grooved balance piston and hardened journal. It provides the counteracting force to eliminate thrust loads on the shaft due to differential pressure. It is extra long to minimize flow loss. Leakage crossing the balance piston provides cooling flow to the mechanical shaft seal before being returned to pump inlet. In the case where the pump is mounted vertically within the coolant supply tank, the shaft seal can be eliminated for further cost effectiveness. Leakage across the balance piston is then allowed to escape back to the coolant supply by leaving a seal chamber exit tap unplugged. A lip seal on the pump side of the ball bearing prevents coolant splash from washing out the bearing grease.
Performance shown at a viscosity of 1.8 centistokes, speed of 3500 RPM
Size
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
20-38
GPM
8.2
7.6
7.1
6.7
6.4
6.1
5.8
5.5
5.2
4.9
4.8
4.5
4.3
BHP
2.6
3.3
4
4.8
5.5
6.2
6.9
7.6
8
8.7
9.4
10.1
10.8
20-46
GPM
10.9
10.3
9.7
9.2
8.8
8.5
8.1
7.8
7.5
7.1
6.8
6.7
6.4
BHP
2.8
3.8
5.9
5.7
6.6
7.6
8.2
9.1
10
10.9
11.8
12.7
13.6
20-56
GPM
15.1
14.1
13.2
12.5
11.9
11.3
10.7
—
—
—
—
—
—
BHP
3.2
4.5
5.3
7.2
8.5
9.4
10.7
—
—
—
—
—
—
40-38
GPM
16.5
15.1
14.1
13.1
12.3
11.5
10.7
10.1
9.4
8.7
8.2
7.6
7
BHP
2.4
3.9
6.8
6.8
8.3
9.4
10.8
12.3
13.7
15.1
15.8
17.2
18.6
40-46
GPM
23
21.6
20.4
19.6
18.7
17.9
17.2
16.5
15.9
15.2
14.6
14.1
13.5
BHP
2.9
4.9
6.6
8.5
10.4
12.3
14.2
16.1
17.2
19
20.9
22.7
24.5
80-36
GPM
31.2
29.3
27.6
26.3
25.1
23.9
23
21.9
21.1
20.1
19.3
18.5
17.8
BHP
4.1
6.8
9.1
11.7
14.3
16.2
18.7
21.2
23.7
26.2
28.7
31.2
33.7
80-46
GPM
46.4
44.4
42.8
41.4
40.2
39.1
38.1
37.1
36.2
35.2
34.5
33.6
32.9
BHP
5.3
8.8
51.8
50.1
48.6
47.4
46.1
44.9
43.8
42.7
41.7
40.7
39.8
140-39
GPM
59.6
57
54.9
53.2
51.6
50.2
48.8
47.5
46.4
45.2
44.1
43
42
BHP
6.9
11.7
19.9
20.4
24.9
29.5
34.1
38.7
43.3
47.9
52.4
57
61.6
140-46
GPM
79
76.5
74.5
72.7
71.2
69.7
68.3
67.1
65.9
64.7
63.7
62.6
61.6
BHP
8.3
14.6
25.2
25.9
31.8
37.8
43.8
49.7
55.7
61.7
67.6
73.6
76.1
210-40
GPM
96
92.3
89.8
87.5
85.5
83.6
81.9
80.3
78.8
77.2
75.8
74.5
73.2
BHP
11.2
18
30.7
32.4
39.7
46.9
54.1
61.4
68.6
75.8
79.5
86.4
93.3
210-46
GPM
122
119
116
114
112
110
108
106
105
103
102
101
99.4
BHP
13.1
21.7
37.6
39.8
48.9
58
67.1
76.2
85.3
90.3
99
108
116
280-43
GPM
142
139
136
133
131
129
127
125
123
121
120
118
117
BHP
16.4
27
41.8
48.3
58.9
69.5
76.6
86.8
96.9
107
117
127
138
280-46
GPM
162
158
156
153
151
148
146
145
143
141
139
138
136
BHP
17.8
29.8
53.9
53.9
65.9
74.5
86
97.5
109
120
132
143
155
440-40
GPM
202
197
194
190
187
184
182
180
177
175
173
171
169
BHP
23.9
38.9
53.9
68.9
80.2
94.6
109
123
138
152
166
181
195
440-46
GPM
260
255
251
248
245
242
240
237
235
233
231
229
227
BHP
29.2
49.1
69
81.6
99.8
118
136
155
173
191
209
228
246
Specifications- Emtec Series
Casing- Cast iron inlet and discharge covers.
Housing- Cast iron with laser hardened bores.
Rotors- Nitride hardened alloy steel.
Shaft Seal- Silicon carbide on silicon carbide, fluorocarbon fitted mechanical seal. Optionally, pumps can be supplied without shaft seal for vertical in-tank mounting. In this case, the seal chamber is drained overboard.
Bearing- Permanently grease packed external ball bearing.
O-Rings- Fluorocarbon.
Viscosity- 1.0 cSt minimum for differential pressure to 870 PSI (60 BAR). 1.8 cSt minimum for differential pressure to 1300 PSI (90 BAR.) 9000 SSU (2000 cSt) maximum.
Inlet Pressure- 145 PSIG (10 BAR) maximum.
Outlet Pressure- 1300 PSIG (90 BAR) maximum.
Differential Pressure- Operation at differential pressures below 40 psi (2.8 BAR) may require pump modification to assure sufficient shaft seal cooling flow. Consult Imo Pump.
Temperature- 0 to 210°F (-18 to 100°C)
Drive/Rotation- Direct drive, clockwise rotation only facing pump shaft.
Speed- 3600 RPM maximum.
Mounting- Shaft end flange mounting, horizontal or vertical, shaft up.
Connections- SAE 4-bolt flange pads for use with 3000 PSI rated 4-bolt flanges, metric bolts.
Filtration- A fine degree of filtration compatible with the expected type and quantity of contaminant will maximize pump service life.
Accessories- Completely mounted pump/driver assemblies with baseplates or NEMA ‘C" face motor adapters are available.
Emtec pump on test
Information on this web site is believed accurate. However, IMO Pump assumes no obligations or responsibilities for its use outside of contractual agreements. Corrections and suggestions are solicited. Webmaster
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