Self-Priming Pump
Self priming pumps are able to pull prime after loosing prime or in some cases can run dry and initiate priming. Centrifugal pumps which SOME are called self-priming actually need to be primed the very first time and then after should hold prime or start up again if pump has retained its priming liquid in its volute. These pumps do not prime from a dry condition.
The second type of Self Priming pump is a positive displacement one and can pull prime completely on its own from often a dry condition. These would be diaphragm / mud Pumps.
Self-priming pumps all have a common limit to how high they can lift or prime. This is often 25 feet maximum and with some pumps may take up to 5 minutes. While some are limited to only a few feet vertical suction lift.
Self Prime pumps come in all materials like Cast Iron, FRP, Aluminum and Stainless. Powered by electric motors, gas / diesel engines, PTO / pedestal and air / pneumatic.
Many self priming pumps are able to handle debris / trash / solids, while others are for high pressure (fire fighting, irrigation, washdown).
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Flotec Pumps
CI Shallow well Pump 1/2
FP4112
$620.00Cast Iron shallow well jet pump water pump. 1/2 HP * Superior performance at depths to water of 25' or less. * Rugged, heavy-duty cast iron pump housing. 1-1/4" NPT suction and 1" NPT discharge pipe sizes.Ready-to-install dual voltage (115v/23... -
Sta-Rite
Shallow well Pump 1/2HP
FNC-L
Cast Iron shallow well jet pump water pump. 1/2 HP electric motor.
Also often used as a sprinkler pump with built in automatic on / off using included pressure switch.
* Superior performance at depths to water of 25' or less. * Rugged, heavy-dut...
115/230v 1/2hp Learn More -
Oberdorfer Pumps
Bronze Gear Pump & Mtr
N992RMS5-F01
$1,231.23Pump 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. Includes relief valve in pump head... -
Oberdorfer Pumps
N992R Gear Pump & Mtr
N992RM-J07
$1,485.77Rotary bronze gear pump with electric 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 s...1/2Hp 115/230v ODP Learn More -
Sta-Rite
1/2HP Shallow Jet pump
PNC-10
1/2HP Shallow Jet pump, water well / sprinkler
FRP (Polypro) engineering plastic pump is corrosion and abrasion resistant. Built in jet is corrosion resistant Noryl nozzle and venturi. UL/CSA listed A.O. Smith motor with thermal overload. 1/2HP. ...
1/2HP 115v Learn More -
Oberdorfer Pumps
N992 Pump & Mtr.
N992S5Q-J97
$1,480.05Bronze rotary gear pump with electric 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 s...230/460v 1/2HP FKM Learn More -
Sta-Rite
1/2 HP Self priming centrifugal pump
DPCMS1
Features- 1/2hp
- Single-Phase, 115-volt, 60hz
- handle and power cord assembled
- built in flapper style check-valve
- Rugged one-piece, close-grain cast iron pump body
- rapid "single-body-fill" priming
- Powered by 56C motor, thermal overload protected
- ha...
115v Learn More -
AMT Pumps
Self Priming Electric Utility pump
4292-96
23% Off Special Price $471.24 Regular Price $612.00AMT Self-priming Utility pumps are reliable, cost effective, low maintenance and many are readily available "Off-the-Shelf" for fast, same day shipment.Alum. Model 4292-96 is designed to be portable and handle many water transfer services includin...
115v 1/2HP Learn More -
Graymills Pumps
Suction Coolant Pump & Mtr
IMS50E 1/2
$816.91Graymills Coolant pumps
are typically found on OEM machine tool equipment and are thus well suited for replacement or retrofit machine tool pumping applications. These pumps can also be used on other industrial applications requiring a vertical c...
1/2hp 115/230v Learn More -
PumpBiz
WOBBLE STATOR PUMP & 3 phase MOTOR
APM-33SSQM-3
$4,999.27Liberty Pumps are backed by over fifty years of progressive cavity pump product sales and technical service experience. American Pump Series Progressive Cavity Pumps are designed with a singular helical rotor that eccentrically turns within a dou...
