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.
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Flojet Pumps
Duplex Diaphragm pump
G575245
$214.51Air driven, pneumatic pump. Glass filled Polypropylene double diaphragm pump with Santoprene diaphragms and EPDM check valve seats. Springs are Hastalloy.Connections are 1/2" 90 degree elbow. Air connection is 1/4" FNPT brass.
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Flojet Pumps
Duplex Diaphragm pump
G573175
$317.40Air driven, pneumatic pump. Glass filled Polypropylene double diaphragm pump with FKM diaphragms and check valve seats. Springs are Hastalloy.Connections are 1/2" Male Pipe Thread MNPT. Air connection is 1/4" barb brass. 2CFM air. Special mod...
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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.
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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
A025-SQP-GTPN-Y70
$588.40PolyPro 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-025 Learn More -
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
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 -
All-Flo Pumps
Air Diaphragm pump Stainless
A050-NA3-VV3V-000
$1,867.80Stainless Steel Diaphragm Air AODD Pump 1/2".
All-Flo pneumatic diaphragm pumps are used throughout industry, chemical, paints, solvents and paints. Standard (Suction Right / Discharge Right). Made in USA.
Lube-free air valve, Non-stalling, No ...
1/2" Stainless Learn More -
All-Flo Pumps
Air Diaphragm pump Stainless
A050-NA3-GT3N-S70
$1,867.80Stainless Steel Diaphragm Air AODD Pump 1/2".
All-Flo pneumatic diaphragm pumps are used throughout industry, chemical, paints, solvents and paints. Standard (Suction Right / Discharge Right). Made in USA.
Lube-free air valve, Non-stalling, No ...
1/2" Stainless Geolast Learn More
