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379D-95_3.gif flow chart Two Stage Sprinkler Booster pump dimensions amt Sprinkler Booster pump Two Stage Sprinkler Booster pump AMT_Sprinler_Boost Electric AMT Pump Sprinkler Booster pump performance table amt-spinkler-perf-chart_1_12.jpg

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Manufacturer: AMT Pumps
Series (17 Models):

Sprinkler Irrigation Pump Self-Priming

Product Name:

Two Stage Sprinkler Booster pump

Model Number:


Gallons Per Hour: 4800 (80 GPM)
Voltage: 230/460
Horsepower: 3

Quick Overview

3HP 230/460v ODP

20% Off Regular Price: $1,175.00

Special Price $940.00


3HP 3P Sprinkler Booster pumps feature Investment Cast 316 SS closed impellers for high efficiency and resistance against erosion caused by abrasive particles. All models self-prime to 20 feet. Single stage models feature a built-in check valve to insure fast priming after initial liquid is added to the pump. Cast iron construction provides durability and low maintenance. Easy cleanout design includes replaceable volute/diffuser and casing o-ring for servicing.

Two-stage models provide additional pressure in fractional horsepower sizes for multi-sprinkler head applications. Type 21 mechanical seals handle maximum working pressure to 150 PSI. Pumps are available from 3/4 to 7-1/2HP with Open Drip Proof (ODP) or Totally Enclosed Fan Cooled (TEFC) motors. See Curve "G"

Series: Sprinkler Irrigation Pumps. Engine powered high pressure pumps for sprinkler watering 
Need technical help on:
Sprinkler nozzle flow rates (multiply by the number heads in biggest zone).
Friction loss in pipes (pressure DROP due to velocity and pipe size) ....bigger is better
Correct size motor supply wire(voltage drop, just like water in a pipe) ...bigger is better

Additional Information

Model Number 4786-95
part number 4786-999-95
Series Sprinkler Irrigation Pump Self-Priming
Warranty (YRS.) 1
Max Flow (GPM.) 80
Max Flow GPH 4800
TDH Maximum (Ft) 180
TDH Maximum (PSI) 78
Horsepower 3
Horse Power (HP) 3
Inlet Connection Type FNPT
Inlet (In.) 1.5
inlet size 1 ½"
Outlet Connection Type FNPT
Outlet (In.) 1.5
Wetted Materials 316SS, CI
Elastomers / O-ring Buna-Nitrile
Voltage (V) 230/460
Voltage (Range) 220-240/460-480
Phase (Ø) Three(3)
Motor Frequency 60
Motor Amps (A) 9/5
Motor ODP
Speed (RPM.) 3450
Motor Frame 56C
Self Priming Yes
Suction Lift (FT.) 20
Max Operating Temperature (F) 180
Viscosity Milk 3.20 cp 40.00 ssu
Stages 2
Shaft 416SS
Length (In.) 19.9
Mechanical Seal BUNA-N
Mechanical Seal Face Carbon-ceramic
Mechanical Seal Type Single
Motor Bearings Ball
Impeller Number (In.) G
Applications Dewatering, High Pressure, Hydrostatic Test, Irrigation, Parts Washer, Self-Priming
Rotation CCW facing front of pump
Impeller Material SS, closed
Cord Length (Ft.) 0
Duty Continuous
Drain Yes
Country of Manufacture United States
Weight (Lbs) 86
Time to Ship (DAYS) 3-5 days
Quick Ship Yes
UPC 72684650517
GPM Of Water At 100 Feet Of Head 46
GPM Of Water At 150 Feet Of Head 25

Supporting Docs

1 HP Lawn Sprinkling Pump1 HP Lawn Sprinkling Pump Size: (28.84 KB) Extension: jpg
Sprinkler Booster 1.5HPSprinkler Booster 1.5HP Size: (75.06 KB) Extension: jpg
Sprinkler Booster 1.5HPSprinkler Booster 1.5HP Size: (229.12 KB) Extension: jpg
View FileTwo Stage Sprinkler Pump Booster 2HP  Size: (81.54 KB) Extension: pdf
California prop 65

AMT Pump Company is A Subsidiary of The Gorman-Rupp Company located in Mansfield, Ohio. AMT offers over 1000+ different standard model numbers of which 400+ are readily available and offered as QSP, Quick Ship Products. AMT manufactures and sells Industrial / Commercial pumps & accessories through authorized distributors.

Virtually every product AMT sells is engineered and designed by the company. Pump components are machined, assembled and tested at the Royersford, Pennsylvania facility.

AMT’s unique designs and patented products have made the company the industry leader for their high quality pumps.