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

Used Gaso 1755 duplex pump package with the following features: • 10" stroke • 120 HP • Duplex stainless steel fluid end • 5.5”plungers • 4" 150# suction connection • 3" 300# discharge connection • Packaged on skid with 100 hp, 460 v, 1780 rpm, XP top mount motor, suction and discharge pulsation dampeners. C44 8-groove sheave on the pump and C8.0 8-groove on the motor. • Weight 10,000 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 • Fluid end • Plungers • Spherical valves • 4" 150 lb suction connection • 3" 300 lb discharge connection • 5.846 (integral or pinion or eternal gear box) 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 21
Used Worthington KPS-1 Duplex Pump Complete Pump

Used Worthington KPS-1 duplex pump with the following features: • 10" stroke • 120 HP • Cast iron fluid end • capable of 110 gpm @ 1500 psi @ 75 rpm with 3 1/2" pistons or 268 gpm @ 530 psi @ 57 rpm with 6" pistons • 6" suction connection • 4" discharge connection • 4.95 (integral or pinion or eternal gear box) gear ratio • Weight • Dims

1 of 21
  • 120 HP
  • 75 RPM
  • 353 GPM
  • 530 PSI
  • Ratio: 4.9500
  • Stock No: 56249
Positive Displacement Pump Reciprocating Pump
353
530
75
120
4.9500
1 of 25
Used Worthington KPS-1 Duplex Pump Complete Pump

Used Worthington KPS-1 duplex pump with the following features: • 10" stroke • 120 HP • Cast iron fluid end • capable of 110 gpm @ 1500 psi @ 75 rpm with 3 1/2" pistons or 268 gpm @ 530 psi @ 57 rpm with 6" pistons • 6" suction connection • 4" discharge connection • 4.95 (integral or pinion or eternal gear box) gear ratio • Weight • Dims

1 of 25
  • 120 HP
  • 75 RPM
  • 353 GPM
  • 530 PSI
  • Stock No: 56224
Positive Displacement Pump Reciprocating Pump
353
530
75
120
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 lb ANSI suction connection • 4" 600 lb ANSI discharge connection • 5.846 (integral or pinion or eternal gear box) 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