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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All-Flo Pumps
PP Air Operated Double Diaphragm Pump
A025-SQP-GTPN-Y70
$588.40PolyPro Air AODD Pump 1/4". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS fr...NC-025 Learn More -
All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
A050-SPP-VVPV-S70
$1,713.45PolyPro Air AODD Pump 1/4". 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 accessor... -
Oberdorfer Pumps
3/4" Bronze gear pump 1HP
N970H-N75
$5,150.483/4" Bronze rotary gear pump without relief valve and close coupled to a 1 HP 12VDC 1725 RPM motor. Often used to pump Diesel fuel. Pump housings and gears are made of top quality bronze, shafts are stainless steel 303. Bearings are made of high ...12vdc Learn More -
All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
PB-10
$1,707.24PolyPro Air AODD Pump 1". 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 Material... -
Oberdorfer Pumps
3/4" Bronze gear pump 1HP
N970RH-N75
$5,595.993/4" Bronze rotary gear pump with relief valve and close coupled to a 1 HP 12VDC 1725 RPM motor. Often used to pump Diesel fuel. Pump housings and gears are made of top quality bronze, shafts are stainless steel 303. Bearings are made of high...12vdc Relief Valve Learn More -
Oberdorfer Pumps
12vdc Bronze Rotary Gear Pump w/ relief valve
N991R-32A96
$1,362.87Bronze gear pump 12v. 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 life. Gear pumps are...12vdc 1/4HP Learn More -
Oberdorfer Pumps
3/4" Bronze gear pump 3/4HP
N970H-M46
$1,597.703/4" Bronze rotary gear pump with relief valve and close coupled to a 3/4 HP 115v/1/60 1150 RPM TEFC motor. Shaft speed and flow are directly proportional. Motor HP needs to increase with a increase in pump pressure. The nature of a positive disp... -
Oberdorfer Pumps
DC Bronze Rotary Gear Pump w/ relief valve
N991R-32C81
$1,855.10Pump 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...12VDC 1/4 Learn More -
Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump
N999Q-F09
$1,311.70Features 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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All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
KN-025E
$584.10PVDF AODD Pump 1/4". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from .25”...
