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Heavy Duty Coolant Pump

1/3 HP 115/230V
Model Number
Heavy Duty Coolant Pump

AMT 4421-95

The AMT Heavy Duty Industrial Coolant pump has been designed for a broad range of Industrial Commercial coolant, water curtain paint booths and recirculating applications. All models with extended shafts are fitted with aligning coupling between motor and shaft. A Universal mounting bracket system is available for these pumps (see below)**


  • Cast Iron Casing and Column
  • 1 1/4" NPT Discharge Port
  • Handles Viscosities to 500 SSU
  • Universal Mounting Bracket Option Available
  • Maximum Temperature 180F
  • Maximum Flow 46GPM
  • Maximum Head 17 ft.
  • Self-cleaning Semi-open impeller
  • Single Phase 56C motor
  • 1/3 HP Totally Enclosed Fan Cooled (TEFC) motor, 1725 RPM
A Cast Iron Mounting Bracket is available for this model. The mounting brackets are designed to simplify the pump installation/removal process andexpand the application range for each pump in the line. With the bracket system, it is no longer necessary to disassemble motor from pump end for installation and removal. Simply unfasten the brackets from the tank cover and insert or remove the complete pump. The bracket system also controls the immersion depth of each pump in the line by clamping to the pump column at the most desirable position (click here). See Curve "C" for detailed pump specs.
Series: Industrial Pump Coolant
More Information
Model Number 4421-95
part number 4421-999-95
Series Industrial Pump Coolant
Max Flow (GPM.) 46
Max Flow GPH 2760
TDH Maximum (Ft) 16
TDH Maximum (PSI) 7
Horse Power (HP) 1/3
Horsepower (IE .5, 1, 1.5, 20) 0.3300
Outlet Connection Type FNPT
Outlet (In.) 1.25
Wetted Materials CI-SS
Voltage (V) 115/230
Voltage (Range) 110-120/220-240
Phase (Ø) Single (1)
Motor TEFC
Speed (RPM.) 1725
Motor Frame 56C
Self Priming Yes
Max Operating Temperature (F) 180
Viscosity SAE 10 oil 88.00 cp 500.00 ssu
Length (In.) 11.700000
Mechanical Seal No
Motor Bearings Ball
Impeller Material SS, semi-open self cleaning
Cord Length (Ft.) 0
Duty Continuous
Drain Yes
Port Rotation Yes
Country of Manufacture United States
Weight (Lbs) 41.000000
UPC 072684650155
Warranty (YRS.) 1
GPM Of Water At 15 Feet Of Head 20

Supporting Docs

Supporting Docs
(Size: 41.74 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.