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/ motor & relief valve
N990RK-Y95
$2,466.00Oberdorfer Close coupled bronze rotary gear pumps.- Bronze Construction with SS shaft
- Helical gears for quiet operation
- Self-lubricating carbon bearings
- O-ring seal for max. leak protection
- The pump drive shaft is connected to the motor shaf...
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Hypro Pumps
Cast Iron Gear pump
GMCV6VC7
$2,587.51Rotary Cast Iron Gear pump 1" with electric motor. 303 SS fasteners, steel gears.Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discharge. Do not operate the relief valve for more ...
3HP 230v/1 ODP 1" Learn More -
Hypro Pumps
316 Stainless Steel Gear pump
GMSV6C7T
$4,300.18Rotary Gear pump with motor. 316 Stainless construction, Ryton gears.
Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the back pressure in the discharge line. Shaft...
3HP 230V TEFC Learn More -
Hypro Pumps
316SS Gear pump end only
GMSV6C
$3,217.03Rotary Gear pump PEO pump end only. 303 SS fasteners, Ryton gears.Use for pressure spraying, circulation of lubricants, tank / drum filling. Will handle water like liquids to very thick. Bi-rotational allows for flow direction reversal. Flu...
3HP Learn More -
Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor
N990K-Y45
$2,387.00Oberdorfer Close coupled bronze rotary gear pumps.- Bronze Construction with SS shaft
- Helical gears for quiet operation
- Self-lubricating carbon bearings
- O-ring seal for max. leak protection
- The pump drive shaft is connected to the motor shaft by ...
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Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor
N990K-Y97
$2,478.00Oberdorfer Close coupled bronze rotary gear pumps.- Bronze Construction with SS shaft
- Helical gears for quiet operation
- Self-lubricating carbon bearings
- O-ring seal for max. leak protection
- The pump drive shaft is connected to the motor shaft by ...
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Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor
N990L-Y98
$2,984.00Oberdorfer Close coupled bronze rotary gear pumps.- Bronze Construction with SS shaft
- Helical gears for quiet operation
- Self-lubricating carbon bearings
- O-ring seal for max. leak protection
- The pump drive shaft is connected to the motor shaf...
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Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor & relief valve
N990RL-Y96
$2,736.00Oberdorfer Close coupled bronze rotary gear pumps.- Bronze Construction with SS shaft
- Helical gears for quiet operation
- Self-lubricating carbon bearings
- O-ring seal for max. leak protection
- The pump drive shaft is connected to the motor shaft by ...