5
F.2 OPERATING LIMITS
CAUTION ATTENTION
Operating conditions, such as speed, fluid viscosity, temperature inlet pressure,
discharge pressure, filtration, duty cycle, drive type, mounting, etc., are interrelated.
Due to these variable conditions, specific application limits may be different from that
of operational limitations. Equipment must not be operated without verifying system’s
operating requirements are within pump’s capabilities.
Under no circumstances are following operating limits (specified in Table 1) to be exceeded
without specific approval from Imo Pump.
Table 1 – Normal Pump Operating and Structural Limits
MAXIMUM SPEED ...........................................................3600 RPM (Depending on Lead)
VISCOSITY ..............................................1 cSt Minimum – 3000 SSU (650 cSt) Maximum
MINIMUM – MAXIMUM LIQUID TEMPERATURE ........................ 0 to 250 F (-18 to 121 C)
MAXIMUM INLET PRESSURE ............................................................150 psig (10.3 Barg)
MAXIMUM DISCHARGE PRESSURE .......................... 2200 psig (103.4 Barg) Cont. Duty
FILTRATION ............................................... (See General Instruction Manual, SRM00046)
DRIVE .................................................................................................................... Direct only
MOUNTING ........................................................... Foot or Flange mounted in any attitude
G. PARTS LIST Table 2 – Pump Parts List
IDP QTY DESCRIPTION KIT IDP QTY DESCRIPTION KIT
1 1 Case 46 1 Inboard Cover
2 1 Inlet Head 47 4 Bearing Retaining Bolt
3 2 Vent Pin XX 48 1 Seal Seat Adapter
4 16 Cover Bolts (8 on 187,250 Size) 49 1 Ball Bearing X
6 1 Stop Pin 63 1 Power Rotor XX
7 1 Dyna Seal XX 66 1 90° Elbow (Not 187 &250)
8 2 Housing Retaining Ring XX 67 2 Pipe Plug (4 on 275)
9 1 Inlet O-Ring X 68 1 Nipple (Not on 187 and 250)
21 2 Suction Idler 69 1 Fitting (Not on 187 and 250)
22 1 Idler Stop XX 70 1 Elbow
23 2 Cups XX 71 1 Tubing
24 1 Discharge Housing XX 73 1 Suction Housing XX
25 1 Seal XX 74 1 Elbow (187 & 250 Only)
26 1 Tube 79 1 Floating BP Bushing XX
27 4 Tube O-Ring 81 1 Idler Stop Cap Screw
28 2 Housing O-Ring X 83 1 Seal Seat O-Ring X
29 1 Thrust Plate X 85 1 Pipe Plug (400 Size Only)
31 1 Key 90 2 Thrust Plate Spacers
35 2
Discharge Idlers (6 on 312 Size
& 2 on 400 size
XX 91 1 Thrust Plate Bolts
38 2
Seal Spacer
Not 187, 350 & 400 sizes
92 1 Thrust Balance Tube
42 2 Bearing Retaining Ring X 93 4 Middle Idlers (400 Size Only) XX
43 1 Bearing Retainer
X = Minor Repair Kit Items.
XX = Major Repair Kit Items. (Items marked (X) are included in Major Repair Kit).
