HOMA GRP Series - Manual (Page 13)

GRP Series
Installation, Operation & Maintenance Manual
GRP Technical Details
The following is offered as a general guide to values and capacities commonly used.
Resistance Readings (ohms) Pump Weight
230V 230V 460V
Approx. (Lbs.)
1 Phase 3 Phase * 3 Phase *
U1 - U2 / U1 - Z2 U-V-W U-V-W
GRP 10 to 21 2.0 6.0 3.0 9.7 65 #
GRP 24/26 1.9 3.6 2.0 7.3 88 #
GRP 28/34/36/41 0.9 2.3 1.4 3.8 100 #
GRP 44 0.6_ ___ 1.6 1.2 3.8 100 #
GRP 58/59 0.5 0.7 0.5 1.6 230 #
GRP 78/79 0.3 0.5 0.5 1.6 239 #
GRP 117/118 N/A 0.3 0.9 248 #
*Values should be as indicated between any 2 power leads.
Note: Resistance values include 30’ cable, and should be within +/- 10% of above value.
Impeller Bolt Torque 12 Ft. #
Impeller to Bottom Plate Clearance .010” or 1/4 turn of adjuster screws
Pump Rotation Right hand (CW) looking down from top of motor. CCW looking at cutter blade.
Seal Probes GRP pumps use a 12mm seal probe. Single wire probes are for non classified areas, and
2 wire probes are for Hazardous areas.
Seal Chamber Oil - White Mineral Oil (Chevron Lubricating Oil FM 32, 46, 68)
Seal Oil Volume Minimum Distance between 2 pumps
GRP 10, 12, 16, 19, 21 0.72L GRP 10, 12, 16, 19, 21 6”
GRP 24, 26, 28, 34, 36, 37, 41 1.0L GRP 24, 26, 28, 34, 36, 37, 41 6”
GRP 58, 78, 117 2.5L GRP 58, 78, 117 8”
GRP 59, 79, 118 1.90L GRP 59, 79, 118 8”
Seal Oil Level
With pump lying on its side and oil port at 12:00, measure from the top of housing with gasket in place, to
the oil level.
GRP 10 to 41 1” from top of housing to oil level
GRP 58/59 to 117/118 1 1/2” from top of housing to oil level
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