My Cart

Two Stage Sprinkler Booster 3HP

3HP 230v/1 ODP 3480 GPH
Model Number
379D-95_1.gif 4782-95 pump

AMT 4782-95

3HP 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 or fire fighting applications. Used on Dynamomometer Dyno brake systems. 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. CCW ROTATION. Replace 2HP version 4780-95 See Curve "G"

Engine driven sprinkler irrigation pumps. ipt

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
More Information
Model Number 4782-95
part number 4782-999-95
Series Sprinkler Irrigation Pump Self-Priming
Max Flow (GPM.) 80
Max Flow GPH 4800
TDH Maximum (Ft) 180
TDH Maximum (PSI) 79
Horse Power (HP) 3
Horsepower (IE .5, 1, 1.5, 20) 3.0000
Inlet Connection Type FNPT
inlet size 1 ½"
Inlet (In.) 1.5
Outlet Connection Type FNPT
Outlet (In.) 1.5
Wetted Materials 316SS, Cast Iron
Elastomers / O-ring Buna-Nitrile
Voltage (V) 208-230
Voltage (Range) 208-240
Phase (Ø) Single (1)
Motor Frequency 60-50
Motor Amps (A) 15
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.) 20.100000
Mechanical Seal BUNA-N
Mechanical Seal Face Carbon-ceramic
Mechanical Seal Type Single
Motor Bearings Ball
Impeller Number (In.) G
Other Special motor with shaft extension.
Rotation CCW looking at FRONT of pump
Impeller Material SS, closed
Cord Length (Ft.) 0
Duty Continuous
Drain Yes
Port Rotation No
Country of Manufacture United States
Weight (Lbs) 91.000000
Quick Ship Yes
UPC 072684650067
Warranty (YRS.) 1

Supporting Docs

Supporting Docs
(Size: 81.54 KB) Extension: pdf

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.

Q: What is the flowrate ?

A: 80 Gallons per min. wide open flow / discharge. Flow rate can be significantly affected by the hose / pipe size (bigger is better) and length. See Engineering Tables link. PB