350 GPM Duplex Pumps For Sale

We have a large stock of Double-Acting Duplex Pumps that are used for various applications such as fluid (including heavy oil) transfers in pipelines, mud pumping, cement pumping, water well drilling etc. in the Oil & Gas, Agriculture, Mining, Municipal & Manufacturing sectors. Duplex Pumps have two cylinders and are capable of handling different pressures, volumes and flow rates. We supply new, used and refurbished API 674 Double Acting Duplex Pumps of all leading manufacturers including Gaso, Wheatley, Gardner Denver, National & Oilwell.

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1 of 40
Used Gaso 1755 Duplex Pump Package

FOR SALE OR RENT: Used Gaso 1755 duplex pump package with the following features: • 10" stroke • 120 HP • Steel fluid end • 3.5”plungers • 4" 150# suction connection • 3" 300# discharge connection • Packaged on skid with 100 hp, 460 v, 1785 rpm, XP top mount motor, C44 8-groove sheave on the pump and C8 8-groove on the motor (5.5:1 Ratio which equates to 55 pump RPM). • Weight 10,660 lbs • Dims (9’ 6”L x 5’ 4”W x 5' H)

1 of 40
  • 120 HP
  • 85 RPM
  • 336 GPM
  • 1750 PSI
  • Ratio: 5.8460
  • Stock No: 53858
Positive Displacement Pump Reciprocating Pump
336
1750
85
120
5.8460
1 of 31
Used Gaso 1742 Duplex Pump

Used Gaso 1742 duplex production pump with the following features: • 10" stroke • 120 HP • Cast steel Fluid end • Plungers • Spherical valves • 4" 150 lb suction connection • 3" 300 lb discharge connection • 5.846 gear ratio • Last used in crude oil service • Weight • Dims

1 of 31
  • 120 HP
  • 85 RPM
  • 336 GPM
  • 1750 PSI
  • Ratio: 5.8460
  • Stock No: 58653
Positive Displacement Pump Reciprocating Pump
336
1750
85
120
5.8460
1 of 12
Used Gardner Denver FD-FXD Duplex Pump Fluid End Only

Used bare fluid end, capable of 91gpm @ 1500psi with 3" pistons or 337gpm @ 475psi with 5 1/2" pistons

1 of 12
  • 109 HP
  • 85 RPM
  • 337 GPM
  • 1500 PSI
  • Stock No: 54708
Positive Displacement Pump Reciprocating Pump
337
1500
85
109
1 of 10
Rebuilt Gaso 1753 Duplex Pump Complete Pump

REBUILT: Gaso 1753 Duplex Pump pump with the following features: • 10" stroke • 120 HP • Cast ductile iron fluid end • Plungers • 6" 150# ANSI suction connection • 4" 600# ANSI discharge connection • 5.846:1 gear ratio • Weight 7,012 lbs • Dims

1 of 10
  • 120 HP
  • 85 RPM
  • 337 GPM
  • 550 PSI
  • Ratio: 5.8460
  • Stock No: 55725
Positive Displacement Pump Reciprocating Pump
337
550
85
120
5.8460