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.
-
Flojet Pumps
12vdc Diaphragm Demand Pump
4300-500
$239.00Industrial QUAD pump - Developed to deliver higher flows up to 5 GPM using a four piston design with excellent self-priming capability. 04300-500A Built-in pressure switch automatically starts and stops pump at its 45 PSI setting.Santoprene diap...
12 Volt Learn More -
Oberdorfer Pumps
N992R Gear Pump & Mtr
N992R-C82
$1,618.1024vDC gear pump and motor. Pump housings and gears are made of top quality bronze; shafts are from stainless steel 303. Bearings are designed of high performance carbon-graphite material selected for wear resistance and long service life. Inclu...1/4HP 24vDC Learn More -
Flojet Pumps
12vdc Dia. Pump
04300-143
$208.00Industrial QUAD pump - Developed to deliver higher flows up to 4.8 GPM using a four piston design with excellent self-priming capability. Built-in pressure switch automatically starts at 30psi and stops pump at its 45 PSI setting.Santoprene diap...
-
Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor & relief valve
N990RH-N76
$2,697.00Oberdorfer 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...