These pumps have a set of rotating gears, flexible impellers, screw rotor or vanes connected to a driven shaft. Therefore most of these pumps incorporate a mechanical seal, packing or lip seal along the shaft at its back end in order to keep the fluid from leaking along the shaft. There are a few models, which are magnetically coupled and thus seal-less. Another type which is seal-less is the Peristaltic which uses a rotating roller assembly to compress a hose over a given arc length. These pumps are very reliable in pumping medium to thick liquids which typically are not handled by Centrifugal pumps and in applications where medium to high discharge pressures are needed at low flow rates. Varying the motor speed easily controls their output. Most units include some sort of built in relief valve, but those that do not must have one installed into the piping to prevent a dangerous over pressure condition. Not recommended for liquids with fine abrasives or thin non-lubricating liquids like water that will accelerate pump wear.
Typical Positive Displacement Rotary pumps include helical gear, spur gear, lobe, progressive cavity, peristaltic, flexible impeller and sliding vane to name a few.
Categories
within Rotary Pumps - Gear, Flexible Impeller, Screw
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Manufacturer: Oberdorfer Pump
Model Number: N992-F41
Maximum Flow : 4 gallons/min
TDH (Head) Maximum @ 0GPM : 100 PSI
Head (TDH) Maximum @ 0GPM : 231 FT
HP Required : 0.45 HP
HP Standard : 0.33 HP
Inlet Connection Type : FNPT
Inlet : 0.38 "
Outlet Connection Type : FNPT
Outlet : 0.38 "
Wetted Materials : 304SS
Wetted Materials : Bronze
Elastomers : Buna-Nitrile
Voltage : 115/230 V
Phase : 1
Frequency : 60 Hz
Motor : ODP
Speed : 1725 RPM
Self Priming : 1
Suction Lift : 20 FT
Max Operating Temp : 140 °F
Viscosity : Glycerine 880.00 cp 5000.00 ss
Max. Particle Size : 0 "
Max Specific Gravity : 1.4 sp. gr.
Max. Particle Hardness : 5 MOH
Max. Volume of Suspended Solids : 0 %
Shaft : 304SS
Coupling : Y
Mechanical Seal : Lip Seal
Mechanical Seal Type : Double
Pump Bearing : Carbon
Warranty : 1 Year/s
Applications : Flooded Suction
Applications : Coolant
Applications : Constant Pressure
Applications : High Pressure
Applications : Hydrostatic Test
Applications : Self-Priming
PH High : 11 pH
| Read more… |
$44900
ea.
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Manufacturer: Stenner Peristaltic Tube Pumps
Model Number: 45MHP22-120-1/4
Maximum Flow : 0.035 gallons/min
TDH (Head) Maximum @ 0GPM : 100 PSI
Head (TDH) Maximum @ 0GPM : 231 FT
HP Required : 0.03 HP
HP Standard : 0.03 HP
Inlet : 0.25 "
Outlet : 0.25 "
Wetted Materials : Acetal-Delrin
Voltage : 115 V
Phase : 1
Frequency : 60 Hz
Motor : ODP
Motor Amps : 1.7 A
Self Priming : 1
Max Operating Temp : 125 °F
Viscosity : SAE 30 oil 352.00 cp 2000.00 s
Max Specific Gravity : 1.8 sp. gr.
Max. Particle Hardness : 5 MOH
Max. Volume of Suspended Solids : 0 %
Mechanical Seal Type : Double
Warranty : 1 Year/s
Applications : Machine Tool
Applications : Metering
Applications : Paint
Applications : Plating
Applications : Proportioning
Applications : Self-Priming
Applications : Chemical
Applications : Coolant
Applications : Dosing
Applications : Drum
Applications : Ink
PH High : 10 pH
Other : Peristaltic Tube & Check Valve
| Read more… |
$40500
ea.
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Manufacturer: Jabsco Pumps
Model Number: 23920-9213
Maximum Flow : 11 gallons/min
TDH (Head) Maximum @ 0GPM : 16.88 PSI
Head (TDH) Maximum @ 0GPM : 39 FT
Inlet Connection Type : FNPT
Inlet : 0.75 "
Outlet Connection Type : FNPT
Outlet : 0.75 "
Wetted Materials : 316SS
Wetted Materials : Bronze
Elastomers : Buna-Nitrile
Voltage : 12DC V
Motor : TENV
Motor Amps : 15 A
Length : 7.5 "
Self Priming : 1
Suction Lift : 8 FT
Max Operating Temp : 180 °F
Viscosity : SAE 30 oil 352.00 cp 2000.00 s
Max. Particle Size : 0.06 "
Max. Particle Hardness : 4 MOH
Max. Volume of Suspended Solids : 1 %
Shaft : 304SS
Mechanical Seal Type : Single
Warranty : 1 Year/s
Applications : Flooded Suction
Applications : Contractor
Applications : Dewatering
Applications : Fuel Oil
Applications : Marine
Applications : Self-Priming
PH High : 9 pH
Other : FLA listed is the fuse size. A
| Read more… |
$37500
ea.
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Manufacturer: Stenner Peristaltic Tube Pumps
Model Number: 85M1-120-1/4 Peristaltic Pump
Maximum Flow : 0.003 gallons/min
TDH (Head) Maximum @ 0GPM : 25 PSI
Head (TDH) Maximum @ 0GPM : 57.75 FT
HP Required : 0.03 HP
HP Standard : 0.03 HP
Inlet : 0.25 "
Outlet : 0.25 "
Wetted Materials : Acetal-Delrin
Voltage : 115 V
Phase : 1
Frequency : 60 Hz
Motor : ODP
Motor Amps : 1.7 A
Self Priming : 1
Max Operating Temp : 125 °F
Viscosity : SAE 30 oil 352.00 cp 2000.00 s
Max Specific Gravity : 1.8 sp. gr.
Max. Particle Hardness : 5 MOH
Max. Volume of Suspended Solids : 0 %
Mechanical Seal Type : Double
Warranty : 1 Year/s
Applications : Chemical
Applications : Coolant
Applications : Dosing
Applications : Drum
Applications : Ink
Applications : Machine Tool
Applications : Metering
Applications : Paint
Applications : Plating
Applications : Proportioning
Applications : Self-Priming
PH High : 10 pH
Other : Peristaltic Tube & Check Valve
| Read more… |
$39900
ea.
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Manufacturer: Oberdorfer Pump
Model Number: N970HN76
Maximum Flow : 19 gallons/min
TDH (Head) Maximum @ 0GPM : 19.91 PSI
Head (TDH) Maximum @ 0GPM : 46 FT
HP Standard : 1 HP
Inlet Connection Type : FNPT
Inlet : 0.75 "
Outlet Connection Type : FNPT
Outlet : 0.75 "
Wetted Materials : 304SS
Wetted Materials : Bronze
Elastomers : Viton
Voltage : 24DC V
Motor : TENV
Motor Amps : 39 A
Speed : 1725 RPM
Motor Frame : 56C
Length : 22.5 "
Self Priming : 1
Suction Lift : 20 FT
Max Operating Temp : 140 °F
Viscosity : Glycerine 880.00 cp 5000.00 ss
Max. Particle Size : 0 "
Max. Particle Hardness : 1 MOH
Max. Volume of Suspended Solids : 0 %
Shaft : 304SS
Coupling : Y
Mechanical Seal : Dbl. Lip seal
Mechanical Seal Type : Double
Pump Bearing : Carbon
Warranty : 1 Year/s
Applications : Constant Pressure
Applications : Flooded Suction
Applications : Fuel Oil
Applications : Self-Priming
PH High : 11 pH
Other : Clockwise rotation from pump e
| Read more… |
$118200
ea.
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Manufacturer: Oberdorfer Pump
Model Number: N990D1GOC-C34
HP Standard : 0.25 HP
Inlet Connection Type : FNPT
Inlet : 1 "
Outlet Connection Type : FNPT
Outlet : 1 "
Wetted Materials : 304SS
Wetted Materials : Bronze
Elastomers : Buna-Nitrile
Voltage : 115 V
Phase : 1
Frequency : 60 Hz
Motor : ODP
Speed : 1725 RPM
Self Priming : 1
Suction Lift : 20 FT
Max Operating Temp : 225 °F
Viscosity : Glycerine 880.00 cp 5000.00 ss
Max. Particle Size : 0.01 "
Max. Particle Hardness : 1 MOH
Max. Volume of Suspended Solids : 0 %
Shaft : 304SS
Coupling : Y
Mechanical Seal : Carbon-Bronze
Mechanical Seal Type : Double
Pump Bearing : Carbon/graphite
Warranty : 1 Year/s
Applications : Constant Pressure
Applications : Coolant
Applications : Dosing
Applications : Flooded Suction
Applications : Fuel Oil
Applications : Self-Priming
PH High : 11 pH
Other : Clockwise rotation from pump e
| Read more… |
$42300
ea.
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Manufacturer: Oberdorfer Pump
Model Number: N990RH-M46
Maximum Flow : 15 gallons/min
TDH (Head) Maximum @ 0GPM : 19.91 PSI
Head (TDH) Maximum @ 0GPM : 46 FT
HP Standard : 0.75 HP
Inlet Connection Type : FNPT
Inlet : 1 "
Outlet Connection Type : FNPT
Outlet : 1 "
Wetted Materials : 304SS
Wetted Materials : Bronze
Voltage : 115/230 V
Phase : 1
Frequency : 60 Hz
Motor : ODP
Speed : 1140 RPM
Motor Frame : 56C
Self Priming : 1
Suction Lift : 20 FT
Max Operating Temp : 225 °F
Viscosity : Glycerine 880.00 cp 5000.00 ss
Max. Particle Size : 0.01 "
Max. Particle Hardness : 1 MOH
Max. Volume of Suspended Solids : 0 %
Shaft : 304SS
Coupling : Y
Mechanical Seal : Buna Lip Seal
Mechanical Seal Type : Double
Pump Bearing : Carbon/graphite
Warranty : 1 Year/s
Applications : Flooded Suction
Applications : Coolant
Applications : Constant Pressure
Applications : Dosing
Applications : Fuel Oil
Applications : Self-Priming
PH High : 11 pH
Other : Clockwise rotation from pump e
| Read more… |
$135600
ea.
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Manufacturer: Stenner Peristaltic Tube Pumps
Model Number: 100MDC5
Maximum Flow : 0.069 gallons/min
TDH (Head) Maximum @ 0GPM : 25 PSI
Head (TDH) Maximum @ 0GPM : 57.75 FT
HP Standard : 0.03 HP
Inlet : 0.38 "
Outlet : 0.38 "
Wetted Materials : Acetal-Delrin
Voltage : 115 V
Phase : 1
Frequency : 60 Hz
Motor : TENV
Motor Amps : 1.7 A
Self Priming : 1
Suction Lift : 15 FT
Max Operating Temp : 125 °F
Viscosity : SAE 30 oil 352.00 cp 2000.00 s
Max. Particle Size : 0.01 "
Max. Particle Hardness : 5 MOH
Max. Volume of Suspended Solids : 1 %
Mechanical Seal Type : Double
Applications : Boiler Feed
Applications : Chemical
Applications : Coolant
Applications : Ink
Applications : Self-Priming
PH High : 7 pH
Other : 26 RPM
<br>Peristaltic Tube:
| Read more… |
$65000
ea.
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Up to 80GPM
Manufacturer: Oberdorfer Pump
Model Number: N13500-21
Maximum Flow : 80 gallons/min
TDH (Head) Maximum @ 0GPM : 100 PSI
Head (TDH) Maximum @ 0GPM : 231 FT
HP Required : 8 HP
Inlet Connection Type : FNPT
Inlet : 1.5 "
Outlet Connection Type : FNPT
Outlet : 1.5 "
Wetted Materials : 304SS
Wetted Materials : Bronze
Elastomers : Viton
Speed : variable RPM
Self Priming : 1
Suction Lift : 20 FT
Max Operating Temp : 400 °F
Viscosity : Glycerine 880.00 cp 5000.00 ss
Max. Particle Hardness : 1 MOH
Max. Volume of Suspended Solids : 0 %
Shaft : 304SS
Coupling : Y
Mechanical Seal : packing
Pump Bearing : Carbon
Impeller Mat'l / Type : Bronze gears
Warranty : 1 Year/s
Applications : Flooded Suction
Applications : Constant Pressure
Applications : Drum
Applications : Fuel Oil
Applications : Self-Priming
Other : Clockwise rotation from pump e
Country of Origin : USA
Duty : Continuous on lubricating liquids. Use slow speed motor for water.
| Read more… |
$123400
ea.
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Up to 55GPM
Manufacturer: Oberdorfer Pump
Model Number: N11500-21
Maximum Flow : 60 gallons/min
TDH (Head) Maximum @ 0GPM : 100 PSI
Head (TDH) Maximum @ 0GPM : 231 FT
HP Required : 5 HP
Inlet Connection Type : FNPT
Inlet : 1.25 "
Outlet Connection Type : FNPT
Outlet : 1.25 "
Wetted Materials : 304SS
Wetted Materials : Bronze
Elastomers : Viton
Speed : variable RPM
Self Priming : 1
Suction Lift : 20 FT
Max Operating Temp : 400 °F
Viscosity : Glycerine 880.00 cp 5000.00 ss
Max. Particle Hardness : 1 MOH
Max. Volume of Suspended Solids : 0 %
Shaft : 304SS
Coupling : Y
Mechanical Seal : packing
Pump Bearing : Carbon
Impeller Mat'l / Type : Bronze gears
Warranty : 1 Year/s
Applications : Flooded Suction
Applications : Constant Pressure
Applications : Drum
Applications : Fuel Oil
Applications : Self-Priming
Other : Clockwise rotation from pump e
Country of Origin : USA
Duty : Continuous on lubricating liquids. Use slow speed motor for water.
| Read more… |
$133400
ea.
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