Positive Displacement Pumps
These pumps are often thought of as high-pressure pumps. Their
positive displacement of fluid and fixed volume are the result of
the fluid being mechanically moved through their pump passage on a
regular cycle. This means that regardless of the system they
discharge into, the pressure and volume will remain constant. The
power of the driving device and its speed, limit the volume and
pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to
100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed
and fixed volume per cycle, they handle very viscid fluids
well.Smaller than centrifugal pumps.Quiet, do not ad much heat to
the fluid, suitable for shear sensitive fluids.Diaphragm pumps can
easily pass solids, stringy and fibrous foreign matter. Are made in
materials from CI to Titanium and PP, PVDF and PPS engineering
resins.
-
Stenner
Dual head Fixed rate 100GPD
100DMP5
$470.00G.H. Stenner & Company offers a complete line of highly reliable peristalic chemical feeders. Use for grease trap enzymes, algaecide, biocide, biocidal, antimicrobial, chlorination - chlorine sanitizers and disinfectants injection, cooling towers... -
Aquatec Pumps
Low flow misting pump kit
8851-2P01-S421
$319.74Veg. misting or Pre-Filter water treatment RO Booster pump. In / Outlets are 1/4" push-to-connect JG style for easy installation into R.O. water supply line. Kit includes 24vac to 115vac transformer with plug and 20-40 psi pressure switch for... -
Oberdorfer Pumps
2" Bronze gear pump
N26HDM
$6,488.30Long coupled gear pump made of cast bronze. If used above 900 RPM with non-lubricating fluid, then duty cycle is limited to intermittent.Continuous duty on lubricating liquids like oils. Use slower speed motor at lower flow rates for water an...
up to 170GPM Learn More -
Flojet Pumps
Quad Sensr VSD .5 hose barb
R4400-503
$257.50Flojet’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, the ... -
Stenner
Dual head Fixed rate 70GPD
100DMP4
$470.00G.H. Stenner & Company offers a complete line of highly reliable peristalic chemical feeders. Use for grease trap enzymes, algaecide, biocide, biocidal, antimicrobial, chlorination - chlorine sanitizers and disinfectants injection, cooling towers... -
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 More -
Oberdorfer Pumps
3/4" Bronze gear pump 1HP
N970H-N47
$4,637.183/4" Bronze rotary gear pump without relief valve and close coupled to a 1 HP 115v/1/60 1725 RPM TEFC motor.Pump housings and gears are made of top quality bronze, shafts are stainless steel 303. Bearings are made of high performance carbon-gra...115/230v ODP 1HP Learn More -
Aquatec Pumps
RO Pump w/transformer
8841-2J03-B421
$306.60Veg. misting or Pre-Filter water treatment RO Booster pump. In / Outlets are 1/4" push-to-connect JG style for easy installation into R.O. water supply line. Kit includes 24vac to 115vac transformer with plug and 20-40 psi pressure switch for use... -
Aquatec Pumps
Ag Elect. diaphragm pump
5513-1E77-M638
$319.74550 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 -
Oberdorfer Pumps
3/4" Bronze gear pump 1HP
N970RH-N26
$5,003.273/4" Bronze rotary gear pump with relief valve and close coupled to a 1 HP 115v/1/60 1725 RPM TEFC motor.Pump housings and gears are made of top quality bronze, shafts are stainless steel 303. Bearings are made of high performance carbon-grap...115/230v ODP Relief Valve Learn More
