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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Flojet Pumps
Diaphragm Pump 1.9GPM
N5100040
$290.00Oil Resistant Acetyl Copolymer housing with Santoprene, FKM, Geolast and Buna Elastomers. Flow rates to 1.9gpm and operating pressures 20 to 75psi, Duplex diaphragm design. Foam application. SALE!!!Max. air 80 PSI and .77 CFM
Neoprene Learn More -
Pulsafeeder
Chemical Feed Pump
LB02SA-PTC1
$1,844.33Chemical Feed Pump, Metering pump. 5.76GPD The Pulsatron Series A Plus offers manual control over stroke length and stroke rate. Head mat'l is glass-filed PPL.- 4 distinct flow/pressure envelops
- 100:1 turn down ratio
- Internally dampened to reduce...
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Pulsafeeder
Metering Pump
LB64SA-PTC1
$1,084.71Metering pump, Chemical Feed Pump. The Pulsatron Series A Plus offers manual control over stroke length and stroke rate. Head mat'l is glass-filed PPL.- 1.25 GPH 30GPD 4.7LPH
- 1/4" ID tubing
- 100:1 turn down ratio
- Internally dampened to reduce nois...
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Pulsafeeder
METERING PUMP 24GPD/100 PSI
LPB4MA-PTC1
$1,261.98The 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 12 GPD/100 PSI
LPA3SA-PTC1
$815.67The Series E Plus offers manual control over stroke length andstroke rate.- 20 flow/pressure envelops
- 100:1 turn down ratio
- Auto-off-Manual selection switch with indicator lights
- Built in fuse
- Clear hinged cover over controls for water resistance...
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Pulsafeeder
Metering Pump 20 GPD/250 PSI
LPF4SA-PTC1
$1,395.36The Series E Plus offers manual control over stroke length andstroke rate.- 20 flow/pressure envelops
- 100:1 turn down ratio
- Auto-off-Manual selection switch with indicator lights
- Built in fuse
- Clear hinged cover over controls for water resistance...
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Pulsafeeder
Metering Pump 22 GPD/150 PSI
LPD4SA-PTC1
$1,036.26The Series E Plus offers manual control over stroke length andstroke rate.- 20 flow/pressure envelops
- 100:1 turn down ratio
- Auto-off-Manual selection switch with indicator lights
- Built in fuse
- Clear hinged cover over controls for water resistance...
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Pulsafeeder
Metering Pump 3 GPD/300 PSI
LPK2SA-PTC1
$2,615.94The Series E Plus offers manual control over stroke length andstroke rate as standard. 3 GPD / 0.47 LPH / .125 GPH- 20 flow/pressure envelops
- 100:1 turn down ratio
- Auto-off-Manual selection switch with indicator lights
- Built in fuse
- Clear h...
Manual Learn More -
Pulsafeeder
Metering Pump 42 GPD/150 PSI
LPG4SA-PTC1
$1,480.86The Series E Plus offers manual control over stroke length andstroke rate.- 20 flow/pressure envelops
- 100:1 turn down ratio
- Auto-off-Manual selection switch with indicator lights
- Built in fuse
- Clear hinged cover over controls for water resistance...
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Pulsafeeder
Metering Pump 44 GPD/100 PSI
LPE4SA-PTC1
$1,120.05The Series E Plus offers manual control over stroke length andstroke rate. 44 GPD nominal flow rating. Flow varies with pressure.- 20 flow/pressure envelops
- 100:1 turn down ratio
- Auto-off-Manual selection switch with indicator lights
- Built in fus...
