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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AMT Pumps
Sprinkler / Booster 2HP
379C-95
23% Off Special Price $891.76 Regular Price $1,158.13Sprinkler/Booster pumps by AMT feature Investment Cast 316 SS closed impellers for high efficiency and resistance against erosion caused by abrasive particles. All models self-prime to 20 feet. Single stage models feature a built-in check valve to...
2HP 115/230v/1 TEFC Learn More -
Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor & relief valve
N990RH-M46
$2,748.20Oberdorfer 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...
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Myers Pumps
Self prime CI pump .75 hp
QP7
$1,432.00Quick Prime self-priming pumps are designed to supply large quantities of water for long periods. QPs are ideal for lawn sprinkler systems, car washes and other high volume cleaning and maintenance applications.- Rugged Cast Iron Case and Mot...
115/230v Brass Impeller Learn More -
Oberdorfer Pumps
3/4" Bronze gear pump 3/4HP
N970H-M46
$1,597.703/4" Bronze rotary gear pump with relief valve and close coupled to a 3/4 HP 115v/1/60 1150 RPM TEFC motor. Shaft speed and flow are directly proportional. Motor HP needs to increase with a increase in pump pressure. The nature of a positive disp... -
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 -
Flotec Pumps
CI Shallow well Pump 3/4
FP4122
$960.00Cast Iron shallow well jet pump. 3/4 HP * Superior performance at depths to water of 25' or less. * Rugged, heavy-duty cast iron pump housing. * Ready-to-install 230 volt motor - see manual for 115 volt conversion. * 1-1/4" NPT suction and 1" N... -
Oberdorfer Pumps
Bronze Rotary Gear Pump w/ motor & relief valve
N990RH-N26
$2,455.70Oberdorfer 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 shaft by ...
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Hypro Pumps
Bronze Rotary Gear pump
GMBN5VB6
$1,693.77Rotary Gear pump with electric motor. 303 SS fastners, Ryton gears. Heavy duty rotary external Gear pump, heavy duty with motor.Adjustable relief valve designed for internal pressure relief, can be ported for either internal or external discha...
3/4" 2HP 115/230v Learn More -
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
