IMO 3215/525, Instruction Manual And Parts List, Page: 4 / 11

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D. PUMP MODEL IDENTIFICATION
This instruction manual covers the Imo D12DZ-250 pump. The model of each pump is
identified on pump nameplate.
E. ORDERING INSTRUCTIONS
When corresponding with Imo Pump regarding D12DZ-250 pumps, refer to pump nameplate, this
instruction manual, and assembly drawing as instructed below:
1. From pump nameplate, record pump model number, serial number and manufactured date.
2. Record instruction manual number, revision and date.
3. From the assembly drawing and/or parts list (Table 2) in manual, provide IDP number(s) and names
for replacement part(s).
4. Give above information to your Imo Representative.
F. OPERATION
F.1 LIQUID LIMITATIONS
Never operate on water. The pump is designed for liquids having general characteristics of oil.
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 the 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
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
Maximum Discharge Pressure ............................................................... 2200 psig, Cont. Duty
Filtration ...................................................................... (See General Instruction Manual, CA-1)
Drive ............................................................................................................................. Direct only
Mounting ...................................................................... Foot or Flange mounted in any attitude
Figure 1 – Model Designation
D 12D Z - 250
Basic Design Rotor Size
Series High Pressure Fuel Pump
Figure 1 – Model Designation
D 12D Z - 250
Basic Design Rotor Size
Series High Pressure Fuel Pump