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Stainless Steel Pump 3HP

230/460v 3HP TEFC
Model Number
amt straight centrifugal pump electric cast iron stainless 502 503

AMT 5031-98

AMT 5033-98 3HP stainless high head centrifugal pump

is designed for continuous duty high head pressure OEM, industrial / commercial and general service applications including circulation, chemical processing, liquid transfer, cooling, sprinkler / fire protection systems & pressure boosting. TEFC motors. All models feature mechanical seals & O-rings. See Curve "D"

  • FKM/SIC Mechanical Seal and FKM O-Rings
  • 2 Piece Impeller allows for Easy Servicing and Cleanout
  • Optional EPR/EDPM Seals Available
  • Discharge Port Rotates in 90° Increments
  • 502_ Series: 1-1/4˝ x 1˝ Ports
  • 503_ Series: 1-1/2˝ x 1-1/4˝ Ports
  • (3) Front Drain Plugs
  • Totally Enclosed Fan Cooled (TEFC) continuous duty motors
  • 1/8" solids handling
  • Maximum working pressure 150 PSI
  • Maximum Temperature 200F

Replaces 490B-98

Optional Silicon Carbide / FKM N Type 31 Seal Factory installed: 490X-300-VS

More Information
Model Number 5031-98
part number 5031-999-98
Series Straight Centrifugal Pumps
Max Flow (GPM.) 142
Max Flow GPH 8520
TDH Maximum (Ft) 125
TDH Maximum (PSI) 54
Horse Power (HP) 3
Horsepower (IE .5, 1, 1.5, 20) 3
Inlet Connection Type FNPT
inlet size 1 ½"
Inlet (In.) 1.5
Outlet Connection Type FNPT
Outlet (In.) 1.25
Wetted Materials 316SS
Elastomers / O-ring FKM
Voltage (V) 208-230/460
Voltage (Range) 208-230/460//190-220/380-415
Phase (Ø) Three (3)
Motor Frequency 60-50
Motor Amps (A) 8/4
Motor TEFC
Speed (RPM.) 3450
Motor Frame 56J thrd
Self Priming No
Max Operating Temperature (F) 200
Max Particle Size (In) .12
Viscosity Milk 3.20 cp 40.00 ssu
Shaft 416SS
Length (In.) 16.000000
Mechanical Seal Face SiC
Mechanical Seal Type Single
Motor Bearings Ball
Impeller Number (In.) D
Other Suction casing has 4 drain plugs and it can be rotated in 90 degree increments. Max. working pressure is 150 psi. The 316SS parts are investment cast.
Rotation CW facing motor side of pump
Impeller Material Stainless Steel, Closed
Cord Length (Ft.) 0
Duty Continouos
Drain Yes
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 69.000000
Quick Ship Yes
Warranty (YRS.) 1
GPM Of Water At 40 Feet Of Head 135
GPM Of Water At 70 Feet Of Head 110
GPM Of Water At 100 Feet Of Head 70

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.