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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All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
S038-SQP-GNPN-S70
$634.49PolyPro Air AODD Pump 3/8". Max-Pass valve installed. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces previous model PB-038. Click here to ...
3/8" PP Learn More -
All-Flo Pumps
PP Air Operated Diaphragm Pump
PT-038
$947.10PolyPro Air AODD Pump 3/8". C038-SQP-TTPT-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. For handling large size solids order the Max-pass v...3/8" PP/TFE Learn More -
All-Flo Pumps
PP Air Operated Double Diaphragm Pump Bolted Series
PV-038
$648.14PolyPro Air AODD Pump 3/8". 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
KT-038
$968.01PolyPro Air AODD Pump 3/8". 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 Pump and for a Materi... -
All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
KV-038
$969.69Kynar PVDF Air AODD Pump 3/8". 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 Pump and for a Mat... -
Pulsafeeder
Chemical Feed Pump 5GPD/250 PSI
LPB2MA-PTC1
$1,102.95Chemical Feed Pump. The Series E Plus offers the option to choose between 4-20mAfor external pace inputs for automatic control. Chemical Feed Pump or metering pump.- 20 flow/pressure envelops
- 100:1 turn down ratio
- 4-20mA with stop function
- Extern...
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All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
KN-5
$1,971.59PVDF AODD Pump 1/2". All-Flo diaphragm pump has Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into. A050-SPK-TTKT-S70 Kynar pneumatic pump. All plastic air system are corrosion resistant. For pumping aggressive chemic...
Kynar TFE 1/2" Learn More -
All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
KN-5E
$1,759.44PVDF air operated double diaphragm pump. AODD Pump 1/2". All-Flo 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,...
Kyner EPDM Santoprene Learn More -
All-Flo Pumps
PVDF Air Operated Double Diaphragm Pump
C050-SPK-VVKV-G70
$2,005.26PVDF Kynar AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces KN-05 PVDF used in the KN model handles a wide range of chemic...1/2" Kynar Learn More -
Pulsafeeder
Chemical METERING PUMP 6GPD/150 PSI
LPA2MA-PTC1
$1,169.64Chemical metering pump. The Series E Plus offers the option to choose between 4-20mAfor external pace inputs for automatic control.- 20 flow/pressure envelops
- 100:1 turn down ratio
- Optional 4-20mA with stop function
- Optional External Pacing with ...
