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Triplex Series 60 PSI Diaphragm Pumps
INSTALLATION & SERVICE INFORMATION
FLOJET Triplex Low Pressure Series pumps are designed for a wide
range of applications and are constructed from a selection of mate-
rials suitable for handling a broad range of chemicals.
The Triplex Low Pressure diaphragm pumps are self-priming and
can run dry without harm. They are intended for intermittent duty
cycles but can be run continuously for short periods of time. The
higher the duty cycle, the shorter the expected life of the pump.
Typical uses include transfer, delivery, spraying, cooling filtration,
dispensing, and pressure boosting.
OPERATION
To start and prime the pump, the discharge line must be opened to
allow trapped air to escape, thus avoiding the potential of airlock.
For demand models, the pressure switch will shut off the pump
automatically when the discharge valve is closed and the pressure
has risen to the switch OFF set point. The pressure switch will restart
the pump when a valve is opened and the discharge line pressure
drops to the ON set point of the pressure switch. For bypass models,
apply power to the pump, and open the discharge valve to expel
air in the line.
DEMAND OPERATION
Pump models fitted with a pressure switch are known as demand
pumps. The pressure switch is preset to shut off the pump motor
automatically when a specific pressure is reached, such as in closed
discharge conditions. The pressure switch turns the pump motor on
automatically as the pressure drops, such as when the discharge
is opened. Demand operation is considered an "intermittent duty"
application. The maximum intermittent duty cycle is that which will
cause the motor to reach its maximum thermal limits. Once the
maximum thermal limit is reached, the motor must be allowed to
settle to a lower (ideally ambient) temperature, before resuming
operation.
Running the pump at or near the maximum thermal limit for an
extended period of time will shorten the life of the pump and may
result in immediate pump failure. Demand pump models feature
an integral pressure switch that automatically turns the pump off/
on in response to open/closed discharge conditions.
DIMENSIONAL DRAWINGS
(81)
NPTF
(96)
(51)
(intermittent duty)
Inches (mm)
(214)
(91)
(78)
(57)
AC Motor
BYPASS OPERATION
Models equipped with an external bypass system are designed
to pump at high pressures while at low or high flow rates. Models
equiped with bypass only must be turned off/on manually, or by an
independent control device. Models equipped with a bypass only
will continue to run until the power is manually turned off.
The Triplex High Pressure pumps are not recommended for con-
tinuous duty service due to limited motor brush life. Operation
at lower pressures and temperatures, however, will extend overall
pump service life.
SPECIFICATIONS
Pump Design:
Motor Design:
Voltages:
Cycles:
Amp Draw:
Pump Head:
Elastomers:
Max. Flow Rate:
Max. Pressure:
Liquid Temperature:
Duty Cycle:
Weight:
Wiring Options:
Port Size inlet / outlet:
* Consult factory for fluid temperature options.
3
(91)
NPTF
(81) (100)
(34)
(101)
3
(if equipped)
Motor operated 3 chamber diaphragm
Permanent magnet DC TENV (Non-Ventilated)
0.65 amps max for 115/230 VAC
Reinforced Polypropylene
Diaphragm
Check valves
Standard 18" (46 cm) leads
6 ft. (2 m) cord available for AC
3
(93)
1
(48)
(75)
DC Motor
Rectified (PmDC) AC
12 VDC, 24 VDC
115 VAC, 230 VAC
50/60 Hz
8 amps max. for 12 VDC
Santoprene™
EPDM or Viton
2.0 GPM (7.6 LPM)
50 psi (3.4 bar)
40° F (4° C) Min*
140° F (60° C) Max*
Intermittent
3.4 lbs (1.5 kg)
3/8" NPTF
8
(227)
(82)
(57)
(54)
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