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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Hypro Pumps
Bronze Gear pump PEO
GCBN2V
$783.43Bronze Gear pump for close coupling to a 1/3 hp Carbonator type motor.Includes relief valve. Pump end only. Replaces 6PA26
1/4" no motor Learn More -
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 -
Hypro Pumps
Bronze Gear Pump W/Relief
BBV1
$699.00Bronze Pedestal Gear Pump, light duty with relief valve.
Also see N2000 or N3000
Self-priming, positive displacement, external rotary gear pumps are ideal for a wide range of light-duty industrial, marine, agricultural, and commercial applicatio...
Bronze 1/4" Learn More -
Oberdorfer Pumps
Cooling Gear Pump w/ relief valve
N1000R39
$297.00Heliarc Welding machine cooling Pump. Bronze Pedestal Gear pump with relief valve. Often used as a coolant pump on welding torch, Miller welder heli-arc. Pump flow is reversible. Round body "no feet body".- Gear pumps are positive displacemen...
Heliarc Welding Learn More -
Flojet Pumps
115v Dia. Pump w/Switch
4300-529A
$589.00Commercial Duty - Developed to deliver higher flows up to 3.3 GPM using a four piston design with excellent self-priming capability. Built-in pressure switch automatically starts and stops pump at its 30 PSI setting. Motor is a Induction motor fo...Continuous Duty FKM Induction motor Learn More -
Oberdorfer Pumps
Close Coupled Bronze Rotary Gear Pump
N991
$414.00Rotary Gear Pump ONLY, no motor. 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. Pesti...Pump End Only, no relief valve Learn More -
Flojet Pumps
115v Dia. Pump w/Switch
4300-531A
$579.00Commercial Duty - Developed to deliver higher flows up to 3 GPM using a four piston design with excellent self-priming capability. Built-in pressure switch automatically starts and stops pump at its 30 PSI setting. Motor is a continuous duty PSC,...Continuous Duty Santo Learn More -
Hypro Pumps
Cast Iron Gear Pump 1/2"
GCCN33V
$940.81Cast Iron Gear pump close coupled to a 1/2 hp Carbonator type motor. Use with lubricating liquids only, not water based.115/230v 1/2HP Learn More -
Jabsco Pumps
24V Bronze Vane Puppy Pump
18680-0940
$463.00The Jabsco Reversible Rotary Vane Pump is ideal for transferring diesel fuel. NO reversing switch, it is ideal for moving fuel.- Rotor: Vectra
- Vanes: Ryton
- Seal: Lip Type, Nitrile
- 24V motor
- Self-priming up to about 3 ft.
- Duty cycle-30 minu...
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Pumptec
Portable Toilet Service Sytem
80729
$1,335.00Series 356U - M60 Pump 12 Volt 0-700 PSI. Waterhorse 80729 PWK-713-12V.
Includes unloader, gun, and inlet filter. Does NOT include hose. This electric pressure washer cleaner is one work horse in the pressure washing business and in power washing...
12VDC pressure pump Learn More