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 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.
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.
-
Flojet Pumps
Duplex Diaphragm pump
G573185
$317.40Glass filled Polypropylene double diaphragm pump with FKM diaphragms and check valve seats. Springs are Hastalloy.Connections are 3/8" MNPT" . Air connection is 1/4HB brass.
-
Flojet Pumps
Duplex Diaphragm pump
G573218
$317.40Glass filled Polypropylene double diaphragm pump with FKM diaphragms and check valve seats. Springs are Hastalloy.Connections are 1/2" HB straight. Air connection 1/4” (6.4 mm) Plastic Hose Barb
Used with all sorts of cleaning chemicals an... -
All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
A050-SPP-VVPV-S70
$1,713.45PolyPro Air AODD Pump 1/4". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. For handling large size solids order the Max-pass valve under accessor... -
All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
PE-038
$601.31PolyPro Air AODD Pump 3/8" S038-SQP-SEPE-S70. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pum... -
Flojet Pumps
High Flow Booster System
2840-000
$689.00Designed to provide a constant water pressure of 40 PSI and flows to 4.5 GPM. The pump is fully automatic, with built-in inlet strainer, pressure switch, and check valve, and supplies a smooth flow from a trickle to full flow. 115vIncludes cord ...
-
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... -
All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
KN-025E
$584.10PVDF AODD Pump 1/4". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from .25”... -
All-Flo Pumps
Nylon Air Operated Double Diaphragm Pump
A025-SQP-STPE-Y70
$495.00PolyPro Air AODD Pump 1/4". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS fr...NC-025E Learn More -
Jabsco Pumps
Bronze Pump 10gpm 115V
11810-0003
$1,041.00Bronze Utility pump, electric motor drive. For general transfer pumping where self-priming, 10gpm flow, debris tolerance and portable 115V AC operation is desired. Nitrile for oil based products. Neoprene for water and general purpose pumping. ...1/3HP Utility pump 115v Learn More -
Jabsco Pumps
Bronze Portable Pump
18610-0001
$888.33Bronze Portable Pump, marine water utility pump. For general transfer pumping where self-priming, 6 gpm flow, debris tolerance and portable 115VAC operation is desired. Long lasting AC induction motor has no brushes to wear out. Do not pump gas...
