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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Aquatec Pumps
5 chamber diaphragm pump 12v
5510-1D01-B636
$199.00OPERATION: The 550 pumps can draw water from a holding tank and pressurizeit, or boost the pressure from a low pressure source. It is designed to operate intermittently, but most versions can run continuously for several hour intervals.It can be ... -
Flojet Pumps
Industrial Demand Pump
2100-789
$208.00Spray pump is a Duplex Diaphragm demand pump 115v. Use as a carpet cleaning machines, solar water pump or any other powered shower, sprinkler, misting system. Demand switch automatically turns the spray pump on and off when discharge valve is o... -
Aquatec Pumps
5 chamber 12V diaphragm pump
5513-1E12-B636
$199.0012vdc 550 Series Super Flow Pump: Reverse Osmosis System Pump, High Powered RO / DI Reverse Osmosis Pump
OPERATION: The 550 pumps can draw water from a holding tank and pressurizeit, or boost the pressure from a low pressure source. It is designe...
12vdc Learn More -
Jabsco Pumps
Commercial Duty 12vDC water pump
18670-0123
$365.00Commercial Duty Water Puppy has 25% more flow than the standard model and a heavy duty PMDC motor. For general transfer pumping where self-priming, 8 gpm flow and debris tolerance are required. Oil-resistant nitrile impeller is standard. Do not p...12v Learn More -
Oberdorfer Pumps
DC Bronze Rotary Gear Pump
N999R-C81
$1,443.00Bronze 12v DC gear pump mounted to a 1200rpm 1/4 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 ...
12 volt DC 1/4" Learn More -
Jabsco Pumps
12VDC Bronze Vane Reversible Pump
18680-1000
$463.00The Jabsco Reversible Rotary Vane Pump is ideal for transferring diesel fuel. With its integral On-Off Reversing switch, it is ideal for moving fuel between port and starboard fuel tanks.
- Rotor: Vectra
- Vanes: Ryton
- Seal: Lip Type, Nitrile
- 12...
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Jabsco Pumps
Commercial Duty 24v DC
18670-0943
$407.00Commercial Duty Water Puppy has 25% more flow than the standard model and a heavy duty PMDC 24 vdc motor. For general transfer pumping where self-priming, 8 gpm flow and debris tolerance are required. Oil-resistant nitrile impeller is standard. D...24v Learn More -
Jabsco Pumps
Diesel refueling pump
23870-1200
$299.00Jabsco rotary vane pump for diesel fuel and other fuel oils. Transfer pump for refuelling small sizes diesel powered vehicles 50 gal. from drums. Suitable for mounting to the following equipment: Excavators, Cranes, Road rollers (compactors), P...12vdc Learn More