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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Oberdorfer Pumps
3/4" Bronze gear pump 1HP
N970H-N75
$2,659.003/4" 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 -
Pumptec
200PSI Spray Sytem 12V
80326
$477.86Spray Pump Module 200 PSI. Basic Sprayer Pump System easily converts spot sprayer to a high-performance 200 PSI sprayer for tree spraying, ditch and fence line spraying, plus eave/overhand spraying. 114T PumpTec Pump, Nylon Body, FKM O-rings, Tefl...12VDC spray system Nylon body 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 -
Aquatec Pumps
AquaJet RV Pump
PVP55-Aquajet-ARV
$326.00AquaJet RV water pump, high flow. 12 volt Variable speed RV water pump.Controls Pressure by Changing Motor Speed and therefore is nearly silent operation / no cycling. • Speeds Up As Demand Increases • Self-priming / Runs Dry • No Accumulator ...High Flow Water Pump 12v Learn More -
Flojet Pumps
Quad Sensr VSD .75 hose barb
R4400-504
$299.00Flojet’s quad Variable Speed Drive (VSD) system needs no accumulator tank. Its microprocessor provides precise speed control to match the system demand. As more water is needed, the motor drives the pump for more flow. As the demand lessens, th...Notice:This Product has been discontinuedLearn MoreOut of stock -
Aquatec Pumps
Ag Elect. diaphragm pump
5513-1E77-M638
$219.00550 Series Super Flow Pump: These pumps are specifically designed for Ag applications such as MOSQUITO pesticides and fertilizers. 12 VDC SEALED MOTOR. FKM SEALS. Pressure switch set at 60 PSI.
OPERATION: The 550 pumps can draw water from a holdi...
12vdc 5GPM 60PSI Learn More -
Aquatec Pumps
24v Elect. diaphragm pump
5852-1F12-B423
$193.00580 Series Super Flow Pump: These pumps are specifically designed for mobile low flow or low voltage applications such as RO water systems, pesticides and fertilizers. 24 VAC. Pressure switch set at 70 PSI. Connections are 3/8 " John Guest fittin... -
Jabsco Pumps
Run dry 24vdc
23920-9323
$499.00Jabsco pump. For general purpose pumping where self-priming and extended run dry capability are required. Liquid stored in the specially designed pumphead provides 10 minutes or more of run dry operation after liquid supply tank is empty. Heavy...23920-9 Learn More -
Jabsco Pumps
Run dry 12VDC Pump
23920-9423
$556.00Jabsco pump 8gpm. For general purpose pumping where self-priming and extended run dry capability are required. Liquid stored in the specially designed pumphead provides 10 minutes or more of run dry operation after liquid supply tank is empty. He...