5
Under no circumstances are the following operating limits (specified in table 1) to be exceeded
without specific approval from Imo Pump.
Table 1 – Pump Operating and Structural Limits
Maximum Speed…. 4000 RPM for Type B and H seals
3500 Rpm for Type H and J Seal
Up to 7000 Rpm for Type I Pumps. Contact factory for exact speeds.
1800 rpm for #6 fuel oil, crude oil and fluids known to contain fine abrasives
Viscosity……………Type B and I Pumps – 33 to 3000 SSU (2 to 650 Cst)
Type H Pumps – 33 TO 25,000 SSU (2 to 5400 Cst)
Type N ad J -60 to 5000 SSU (10 to 1100 Cst)
Temperature……… Type B Mechanical Seal - 0° to 180°F [-17 C to 82.2 C]
Type H Mechanical Seal, Integral Mounted Pumps, and Packing Pumps - 0°
to 250°F [-17 to 121 C]
Suction Pressure.....Type 3EB and 3EH, 3EI - 75 PSIG Maximum [1.72 bar Maximum]
Type 3EJ and 3EN – 250 psig
- ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................-
Drive ................................................................................................................................. Direct Only
Maximum Differential Pressure .......................................................................... 150 PSIG [10.3 bar]
Filtration……………Light Fluids – 60 mesh
Heavy Fluids – 1/16 to 1/8 inch [1.58 mm to 3.17 mm]
F.3 Pump Weights:
Foot Mount – 36 LBS [16.4 KG] C-Face = 32 LBS [14.5 KG]
F.4 Pump Airborne Noise levels are expected to be less than 70 dBA.
G. PARTS LIST
Table 1 – List of Material
Item Qty. Part
Description
Item
Qty
Part Description
1
1
Case/Housing
16(1)
1
Seal
2(2)
1
Outboard End cover
26(1)
1
Inboard Cover O-Ring
3
4
End Cover Hex Bolts
27
4
Inboard Cover Hex Bolts
4
1
Inboard Cover
75(2)
1
Housing***
5(1) 1 Inlet
O-Ring*
6
4
Bearing Cover Hex Bolts
76(2)
1
Housing O-Ring***
7(2)
1
Power Rotor
92
1
Seal Seat Adapter
8(2) 2 Idlers
93(1)
1
Seal Seat Adapter O-Ring
11(1) 1 Ball
Bearing 96
1
Pipe
Plug
12
1
Bearing Retainer
97
1
Dowel Pin
13
2
Shaft Key
15
1 or 2** Bearing Snap Rings
* On 3EJ(N) pumps only
** Qty 2 on 3EJ(N) pumps only
*** Used On Steel Case Pumps Only
NOTE:
(1) Minor Repair Kit items (iron and steel case pumps, not including 3EIC).
(2) Major Repair Kit items (steel case pumps only). Items marked (1) also included in
Major Repair Kit.
REPAIR KITS
Minor Repair Kits are available for pumps equipped with mechanical seal and ball bearing. Major Repair
Kits are available for all steel case pumps. Major Repair Kits are not available for iron case pumps because
major repairs are not considered economical. If extensive repair is required to an iron case pump, the pump
should be discarded and a new pump purchased. Repair parts are available only in kit form.
