Positive Displacement Pumps
These pumps are often thought of as high-pressure pumps. Their
positive displacement of fluid and fixed volume are the result of
the fluid being mechanically moved through their pump passage on a
regular cycle. This means that regardless of the system they
discharge into, the pressure and volume will remain constant. The
power of the driving device and its speed, limit the volume and
pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to
100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed
and fixed volume per cycle, they handle very viscid fluids
well.Smaller than centrifugal pumps.Quiet, do not ad much heat to
the fluid, suitable for shear sensitive fluids.Diaphragm pumps can
easily pass solids, stringy and fibrous foreign matter. Are made in
materials from CI to Titanium and PP, PVDF and PPS engineering
resins.
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Oberdorfer Pumps
Bronze Rotary Gear Pump w/ relief valve & Motor
N991RM-32F01
$743.00Bronze Rotary Gear Pump. Includes electric motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbongraphite material selected for wear resistance and long se...115v 1/4" Learn More -
Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump w/ relief valve
N991RN32-F08
$881.00Bronze Rotary Gear Pump with electric motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbongraphite material selected for wear resistance and long service...Pump & 1/3HP Motor 115v 1/4" Learn More -
Oberdorfer Pumps
Bronze Rotary Gear Pump EXP
N999-spec
$1,200.001/2 gpm diesel oil pump with EXP motor.Features N999 Series:
- Compact design eases installation and use in limited space areas.
- Construction is bronze and stainless steel wetted components.
- Close tolerance design allows for consistent perf...
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Oberdorfer Pumps
Bronze Rotary Gear Pump w/ relief valve
N991R-F41
$813.00Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbongraphite material selected for wear resistance and long service life. Gear pumps are positive displacement p... -
Oberdorfer Pumps
Bronze Rotary Gear Pump w/ relief valve
N991RM-F07
$925.00Bronze gear pump with motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Includes relief valve. Bearings are designed of high performance carbongraphite material selected for wear resistance and long se...115/230v 1/3HP Learn More -
Hypro Pumps
Bronze Gear pump 1/3 hp
GCBN22V
$1,260.19Bronze Gear pump close coupled to a 1/3 hp Carbonator type motor. 115vIncludes relief valve.
115v 1/4" Learn More -
Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump
N999R-F41
$699.00Bronze gear pump mounted to a 1725rpm 1/3 HP motor. Pump has relief valve.Features N999 Series:
- Compact design eases installation and use in limited space areas.
- Construction is bronze and stainless steel wetted components.
- Close toleran...
115v 1/3HP Learn More -
Oberdorfer Pumps
Bronze gear pump forward reverse
N992-37F30
$1,523.00Oil change pump. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Close coupled to a 115vac motor including a Forward / Off / Reverse switch. Often used at dockside for changing the oil in boats. Bearing...
1/3HP 115v TEFC REVERSIBLE Learn More -
Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump
N999RM-F07
$955.00Bronze gear pump mounted to a 1725rpm 1/3 HP motor. Pump has relief valve.Features N999 Series:
- Compact design eases installation and use in limited space areas.
- Construction is bronze and stainless steel wetted components.
- Close toleran...
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Hypro Pumps
Fat Fryer Cooking Oil Pump
GN63
$985.94Hot Oil Cooking Pump Head, Fat Fryer / Filter, with close coupled Motor HP 1/3. NSF Carbonator Close Coupled Gear Pumps. NSF paint Color White on outer surfaces. Hot glycol or heat transfer liquids. Steel gears.• Pumps can operate bi-directio...
gn hot oil Learn More