30 HP 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.

15 Items Found   •   Showing 50 Per Page

Filter
  • {{tag.text}} ×
 
Item Brand, Model{{search.sorting.directionIcon('item-brand-model')}}
GPM{{search.sorting.directionIcon('gpm')}}
RPM{{search.sorting.directionIcon('rpm')}}
HP{{search.sorting.directionIcon('hp')}}
PSI{{search.sorting.directionIcon('psi')}}
Ratio{{search.sorting.directionIcon('ratio')}}
1 of 20
Used Gaso 1860 Duplex Pump Complete Pump

Used 2 1 /2 - 4 1/2 x 6 duplex pump, capable of 45gpm @ 988psi with 2 1/2" pistons or 148gpm @ 305psi with 4 1/2" pistons, on skid with 20HP motor

1 of 20
  • 31 HP
  • 100 RPM
  • 148 GPM
  • 305 PSI
  • Ratio: 5.1000
  • Stock No: 58252
Positive Displacement Pump Reciprocating Pump
148
100
31
305
5.1000
1 of 8
Used Gaso 1860 Duplex Pump Complete Pump

Used Gaso 1860 duplex pump package with the following features: • 6" stroke • 28.3 HP • Ductile iron fluid end • missing piston rods • 10" ANSI 150# FF suction connection • 4" ANSI 600# FF discharge connection • Packaged on skid with 25 HP motor • Weight • Dims

1 of 8
  • 28.3 HP
  • 100 RPM
  • 148 GPM
  • 305 PSI
  • Stock No: 58439
Positive Displacement Pump Reciprocating Pump
148
100
28.3
305
1 of 20
Used Gaso 1849 Duplex Pump

Used Gaso 1849 double acting duplex pump with the following features: • 6" stroke • 31 HP • Ductile iron fluid end • capable of 32gpm @ 900 psi with 2 1/2" pistons or 88gpm @ 350psi with 4" pistons • suction connection • discharge connection • 5.1 (integral or pinion or eternal gear box) gear ratio • Weight • Dims

1 of 20
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 57346
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 9
Used Gaso 1849 Duplex Pump Complete Pump

Used Gaso 1849 duplex pump with the following features: • 6" stroke • 31 HP • Ductile iron fluid end • Capable of 32 gpm @ 900 psi @ 70 rpm with 2 1/2" pistons or 88 gpm @ 350 psi @ 70 rpm with 4" pistons • missing rods only • with sheave • suction connection • discharge connection • 5.1 (integral or pinion or eternal gear box) gear ratio • Weight • Dims

1 of 9
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 54340
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 9
Used Gaso 1849 Duplex Pump Complete Pump

Used duplex pump, 2 1/2 - 4 x 6

1 of 9
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 54275
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 13
Used Gaso 1849 Duplex Pump Complete Pump

Used Gaso 1849 duplex production pump with the following features: • 6" stroke • 31 HP • Ductile iron fluid end • capable of 32gpm @ 900psi with 2 1/2" pistons or 88gpm @ 350psi with 4" pistons • 4" suction connection • 2" discharge connection • 5.1 (integral or pinion or eternal gear box) gear ratio • Weight • Dims

1 of 13
  • 31 HP
  • 100 RPM
  • 88 GPM
  • 350 PSI
  • Ratio: 5.1000
  • Stock No: 58212
Positive Displacement Pump Reciprocating Pump
88
100
31
350
5.1000
1 of 5
Used Gaso 1849 Duplex Pump Complete Pump

Used 2 1/2 - 4 x 6 duplex pump missing two valve caps and one head cap only

1 of 5
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 52227
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 10
Used Gaso 1849 Duplex Pump Fluid End Only

Used Gaso 1849 duplex pump fluid end only with the following features: • 6" stroke • 31 HP • Ductile iron fluid end • capable of 32 gpm @ 900 psi @ 70 rpm with 2 1/2" pistons or 88 gpm @ 350 psi @ 70 rpm with 4" pistons • suction connection • discharge connection • Last used in crude oil service • Weight • Dims

1 of 10
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 54211
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 3
Used Gaso 1800 Duplex Pump

Used power end for parts, has bent pinion shaft

1 of 3
  • 31 HP
  • 100 RPM
  • 160 GPM
  • 990 PSI
  • Ratio: 5.1000
  • Stock No: 54338
Positive Displacement Pump Reciprocating Pump
160
100
31
990
5.1000
1 of 4
Used Gaso 1800 Duplex Pump

Used pump case with pinion gear/shaft and sheave duplex pump

1 of 4
  • 31 HP
  • 100 RPM
  • 160 GPM
  • 990 PSI
  • Ratio: 5.1000
  • Stock No: 53245
Positive Displacement Pump Reciprocating Pump
160
100
31
990
5.1000
1 of 3
Used Gaso 1800 Duplex Pump Power End Only

Used duplex power end only for parts

1 of 3
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 53394
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 6
Used Gaso 1849 Duplex Pump Fluid End Only

Used Gaso 1849 duplex pump fluid end only with the following features: • 6" stroke • 31 HP • Ductile iron fluid end • capable of 32 gpm @ 900 psi with 2 1/2" pistons or 88 gpm @ 350 psi with 4" pistons • suction connection • discharge connection • Weight • Dims

1 of 6
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 55926
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 4
Used Gaso 1849 Duplex Pump Fluid End Only

Used Gaso 1849 duplex pump fluid end only with the following features: • 6" stroke • 31 HP • Ductile iron fluid end • capable of 32 gpm @ 900 psi with 2 1/2" pistons or 88 gpm @ 350 psi with 4" pistons • suction connection • discharge connection • Weight • Dims

1 of 4
  • 31 HP
  • 100 RPM
  • 125 GPM
  • 900 PSI
  • Ratio: 5.1000
  • Stock No: 55925
Positive Displacement Pump Reciprocating Pump
125
100
31
900
5.1000
1 of 1
Used Wheatley 1824 Duplex Pump Power End Only

Used duplex power end only

1 of 1
  • 30 HP
  • 90 RPM
  • 105 GPM
  • 900 PSI
  • Ratio: 6.4280
  • Stock No: 50971
Positive Displacement Pump Reciprocating Pump
105
90
30
900
6.4280
1 of 23
Used Gaso 1849 Duplex Pump Package

Used complete Gaso 1849 duplex pump with the following features: • 6" stroke • 31 HP • Steel fluid end • Plungers • Spherical valves • 4" 150lb suction connection • 2" 600lb discharge connection • 5.1 (integral or pinion or eternal gear box) gear ratio • Weight • Dims

1 of 23
  • 31 HP
  • 100 RPM
  • 125 GPM
  • Ratio: 5.1000
  • Stock No: 58694
Positive Displacement Pump Reciprocating Pump
125
100
31
5.1000