Reciprocating Pumps - Diaphragm, Piston, Plunger
These pumps have a diaphragm, piston or plunger which is
reciprocating back and forth through a fixed stoke length. The
diaphragm pumps use a circular semi-flat membrane that is flexed
from a concave to a convex shape within a sealed chamber. There is
no actual sliding contact of parts in the pumping chamber and
therefore these pumps can handle solids, slurries, fibrous and very
thick liquids quit well. Most diaphragm pumps are air operated, but
electric do exist. Electric models are typically very small with
several individual diaphragms working in series being driven by a
rotating angled cam or a single diaphragm being driven by a
mechanical connection to a solenoid. In this case, they are
typically designed as metering pumps. Piston pumps like the name
implies have a piston, ceramic typically, reciprocating within a
very tight tolerance cylinder. Because of their materials of
construction and mechanical design, they produce extremely high
discharge pressures. By making them with several pistons working
together in a single head a semi-steady flow can be obtained. With
any of these pumps special consideration must be given to the
cyclic pressure or hydraulic pulsation’s which
naturally occur.Typical Positive Displacement Reciprocating pumps
include AODD, single diaphragm, electric diaphragm, metering or
proportioning and piston to name a few.
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Pulsafeeder
METERING PUMP 120GPD/100 PSI
LPH6MA-PTC3
$2,338.59The Series E Plus offers the option to choose between4-20mAfor 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 stop function
- Auto-off-Ma...
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Pulsafeeder
METERING PUMP 192GPD/50 PSI
LPK7MA-PTC3
$1,954.53The Series E Plus offers the option to choose between4-20mAfor 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 stop function
- Auto-off-Ma...
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Pulsafeeder
METERING PUMP 240GPD/35 PSI
LPH7MA-PTC3
$2,592.02The Series E Plus offers the option to choose between4-20mAfor 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 stop function
- Auto-off-Ma...
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Riverside
3 in. Electric diaphragm pump
DP3E
$1,863.00Riverside Pumps' rugged and reliable Diaphragm Pumps are sometimes called "mudhogs" for their ability to pump heavy mud and sludge, thicker than any centrifugal pump can handle. They also have the advantage of being able to run dry without damage,...
115/230v Learn More -
Pulsafeeder
115V digital metering pump 192 GPD/50 PSI
LMK7KA-WTC3
$2,034.00Chemical metering injection pump. True microprossor controled instrument for precise and accurate metering control. 190GPD / 7.9GPH flow max. Packed with standard features, it includes automatic control via 4-20mA or 20-4mA inputs, external pace ... -
AMT Pumps
2" Electric Diaphragm Trash Pump
338E-96
$3,140.00New model 338E-96 Powered by 1.5HP electric motor. AMT 2" Diaphragm pumps features 2-stage, 44 to 1 gear reduction with a large diameter output gear and heavy duty ball bearing construction. ALSO AVAILABLE IN 1-PHASE,115/230V Often referred to as ...
1.5HP 115/230v Learn More -
Pulsafeeder
115V digital metering pump 192 GPD/50 PSI
LMK7KA-PTC3
$2,034.00Chemical metering injection pump. True microprossor controled instrument for precise and accurate metering control. 190GPD / 7.9GPH flow max. Packed with standard features, it includes automatic control via 4-20mA or 20-4mA inputs, external pace ... -
Pulsafeeder
115V digital metering pump 120 GPD/100 PSI
LMH6TA-PTC3
$1,849.50Chemical metering injection pump. True microprossor controled instrument for precise and accurate metering control. 240GPD / 10GPH flow max. Packed with standard features, it includes automatic control via 4-20mA or 20-4mA inputs, external pace w... -
Pulsafeeder
115V digital metering pump 240 GPD/35 PSI
LMH7KA-WTC3
$2,067.00Chemical metering injection pump. True microprossor controled instrument for precise and accurate metering control. 240GPD / 10GPH flow max. Packed with standard features, it includes automatic control via 4-20mA or 20-4mA inputs, external pace w... -
Pulsafeeder
METERING PUMP 192 GPD/50 PSI
LPK7MA-WTC3
$2,540.90Metering pump by Pulsafeeder. The Series E Plus offers the option to choose between 4-20mA for external pace inputs for automatic control.- 8.0 GPH
- 100:1 turn down ratio
- 4-20mA with stop function
- Optional External Pacing with stop function ...
4-20mA control 8GPH Learn More