Rotary Pumps - Gear, Flexible Impeller, Screw
These pumps have a set of rotating gears, flexible impellers, screw
rotor or vanes connected to a driven shaft. Therefore most of these
pumps incorporate a mechanical seal, packing or lip seal along the
shaft at its back end in order to keep the fluid from leaking along
the shaft. There are a few models, which are magnetically coupled
and thus seal-less. Another type which is seal-less is the
Peristaltic which uses a rotating roller assembly to compress a
hose over a given arc length. These pumps are very reliable in
pumping medium to thick liquids which typically are not handled by
Centrifugal pumps and in applications where medium to high
discharge pressures are needed at low flow rates. Varying the motor
speed easily controls their output. Most units include some sort of
built in relief valve, but those that do not must have one
installed into the piping to prevent a dangerous over pressure
condition. Not recommended for liquids with fine abrasives or thin
non-lubricating liquids like water that will accelerate pump
wear.Typical Positive Displacement Rotary pumps include helical
gear, spur gear, lobe, progressive cavity, peristaltic, flexible
impeller and sliding vane to name a few.
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Jabsco Pumps
Flex. Imp. Face Seal
777-9003
$562.35Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammable... -
Jabsco Pumps
Flex. Imp. Face Seal
777-9051
$562.35Flexible impeller pump. Half cam pump reduces flow 50% from curve chart. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. ... -
Jabsco Pumps
Flexible Impeller pump
777-0003
$483.00Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammab... -
Jabsco Pumps
Flex. Imp. Face Seal
777-9001
$562.35Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammable... -
Jabsco Pumps
Diesel refueling pump
18685-0000
$550.00Jabsco rotary vane pump for diesel fuel and other fuel oils and light 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 (c...115v Learn More -
Jabsco Pumps
Bronze pump Flexible Impeller Lip Seal
777-0001
$483.00Flexible impeller pump. Full cam. Neoprene for water and general purpose pumping. Nitrile impeller is ideal for oil based products. Reduce flow 50% for half cam operation. Use face seal to extend pump life. Do not pump gasoline or other flammable...Frame / Bearing pedestal mount Learn More -
Oberdorfer Pumps
Bronze Pedestal Gear Pump
N9000S1
$540.50Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite amount of liquid relatively unaffected by the backpressure in the...
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Oberdorfer Pumps
Bronze Pedestal Gear Pump
N4000L
$599.00Bronze Pedestal Gear pump. Often used as a oil pump on large ships to pre-lube the bearings. See performance chart for motor speed VS HP VS performance.- Gear pumps are positive displacement pumps. Each shaft revolution displaces a definite a...
1/2" Learn More -
Oberdorfer Pumps
Bronze Rotary Gear Pump & Motor
N61K10G-01C33
$551.00PUMP AND MOTOR, no relief valve.This Bronze Rotary Gear Pump is popular among OEM users like generator Onan. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a...
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Oberdorfer Pumps
Bronze Rotary Gear Pump & Motor R
N61010GR-01F02
$521.00PUMP AND MOTOR with relief valve.This Bronze Rotary Gear Pump is popular among OEM users. It is a diesel fuel transfer pump featuring an all bronze design and 303 stainless steel shafts with options of non-metallic gears and a variety of shaft s...