IMO 12D Series
MFG in Monroe, NC USA
Series 12D Imo pumps are intended for relatively high pressure service on petroleum or similar viscosity liquids. Typical applications include crude oil pipeline service, fuel atomization for burning in a steam boiler, fuel injection for combustion gas turbines, fluid power service on hydraulically operated machinery, gas sealing in centrifugal compressors and hydrostatic bearing support.
These pumps are hydraulically balanced in both the axial and radial directions which eliminates bearing loads due to discharge pressure. The single bearing is external to the liquid pumped and does not rely on the lubricating qualities of the pumped liquid. The single mechanical seal is exposed only to inlet pressure. Very low airborne noise levels are normal for Imo three screw positive displacement pumps as are high operating efficiencies and non-pulsating delivery of flow.
Three-Screw Pumps
The Superior Pumping Technology
Discover our three-screw pumps - the clear choice for superior performance and versatility. The unique design with three interlocking spindles provides an extremely efficient and smooth flow, resulting in impressive overall efficiency.
In addition to excellent controllability, the self-priming pumps offer minimal pulsation and remarkably quiet operation, even at high discharge pressures.
Our three-screw pumps are true all-rounders, capable of handling a wide range of fluids of varying viscosities - from low-viscosity fluids to highly viscous substances. It’s robust design and the high wear resistance of the spindles ensure reliability and long life, making them the ideal choice for critical applications in a variety of industries.
- Intended for high-pressure service on fluids with viscosity from 33ssu to 25,000ssu
- Does not rely on lubrication qualities of pumped liquid
- Hydraulically balanced in both the axial and radial directions eliminating bearing loads due to differential pressure
Series 12D Imo pumps are intended for relatively high pressure service on petroleum or similar viscosity liquids. Typical applications include crude oil pipeline service, fuel atomization for burning in a steam boiler, fuel injection for combustion gas turbines, fluid power service on hydraulically operated machinery, gas sealing in centrifugal compressors and hydrostatic bearing support
This 12D series is available in
Nominal flow rate, GPM/LPM, at 2200 PSI (152 BAR), 200 SSU (43 CST)
SPEED RPM
12D Series |
3500 |
2900 |
1750 |
1450 |
1150 |
960 |
106 |
12/45 |
9/35 |
4/15 |
- |
- |
- |
118 |
17/66 |
14/51 |
6/23 |
- |
- |
- |
137 |
28/107 |
22/84 |
11/40 |
8/29 |
- |
- |
156 |
43/165 |
35/131 |
18/67 |
13/50 |
9/34 |
- |
187 |
77/293 |
62/235 |
33/125 |
25/96 |
18/67 |
13/49 |
218L |
101/383 |
81/308 |
44/166 |
34/128 |
24/91 |
18/67 |
218 |
126/479 |
102/387 |
56/211 |
44/165 |
32/119 |
24/90 |
250 |
191/725 |
155/588 |
86/326 |
68/257 |
50/189 |
38/145 |
275E |
217/822 |
176/667 |
98/370 |
77/292 |
57/215 |
44/166 |
275 |
- |
209/792 |
117/442 |
93/351 |
69/260 |
53/202 |
312P |
- |
248/939 |
140/529 |
112/422 |
83/315 |
65/247 |
312 |
- |
313/1186 |
178/673 |
142/539 |
107/406 |
85/321 |
350 |
- |
- |
255/966 |
206/778 |
156/590 |
125/472 |
400P |
- |
- |
309/1169 |
250/945 |
190/721 |
153/578 |
Maximum Speed- Do not exceed 1800 RPM pumping residual fuels or crude oil due to the presence of abrasives and contaminants:
Size: | 106 | 118 | 137 | 156 | 187 | 218 | 250 | 275 | 312 | 350 | 400 |
RPM | 4400 | 4400 | 4400 | 4400 | 4400 | 3600 | 3600 | 3000 | 2500 | 2500 | 2500 |
Construction features
Iron or steel case, Dry installation, Vertical installation, Horizontal installation, Self priming, Mechanical shaft seal
Other data
Design standard: Manufacturer STD
Fluids: Fuel Oils, Lubrication Oils, Oils > Crude Oil
Sealing: Single Mechanical seal, Double Mechanical seal
Capacity up to: 400gpm
Pressure up to: 2200psiD
Viscosity range: 32 to 3500ssu
Speed up to:3600 rpm
Max gpm: 400.00
Max lpm: 1514.16
Max m³/hr: 90.85
Max bar (dp): 151.68
Max psi (dp): 2200.00
Pressure class (ANSI): 125, 250, 300, 600, 900, 1500, 2500
Max cSt [mm²/s]: 3238.50
Max SSU: 15000.00
Min cSt [mm²/s]: 2.10
Min SSU: 33.00
Max C°: 121.00
Max F°: 250.00
Min C°: -18.00
Min Fº: 0.00