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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Hypro Pumps
Cast Iron Pedestal Gear Pump
C2K
$1,364.15Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing.Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicati...
1/4" Kevlar packing Learn More -
Hypro Pumps
Cast Iron Pedestal Gear Pump
C1V
$1,253.63Cast Iron Pedestal Gear Pump, light duty NO grease zerks that requires greasing.Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial application...
1/4" FKM Learn More -
Hypro Pumps
Cast Iron Pedestal Gear Pump
C5K
$1,493.69Cast Iron Pedestal Gear Pump, light duty with grease zerks that requires greasing.Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicati...
3/4" Cast Iron Learn More -
All-Flo Pumps
PP Air Operated Double Diaphragm Pump
A050-SPP-TTPT-S70
$1,234.50PolyPro / Teflon Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. For handling large size solids order the Max-pass valve under...PolyPro / Teflon 1/2" Learn More -
Oberdorfer Pumps
Bronze Rotary Gear Pump EXP
N999-spec
$1,560.001/2 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
$1,056.90Pump 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
N991R
$596.70Rotary Gear Pump w/ relief valve ONLY, no motor. Pump housings and gears are made of top quality bronze, shafts are 303 stainless steel. Bearings are designed of high performance carbon graphite material selected for wear resistance and long se...1/4" PEO Learn More -
Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump
N999Q-J46
$1,834.30Features 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 performance
- Helical gears for quiet operatio...
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Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump w/ relief valve
N991RM-J07
$1,279.20Pump 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 pum...1/2HP 115/230v Learn More -
All-Flo Pumps
Air Operated Double Diaphragm Pump Bolted Series
A050-NAA-SSPE-S00
$1,171.50Aluminum Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pump and for a Mate...
