Xylem FLOJET R3521/03521 Series Installation & Service Information

INSTALLATION & SERVICE INFORMATION
FLOJET Triplex High Flow Series pumps are designed for a wide
range of applications and are constructed from a selection of
materials suitable for handling a broad range of chemicals. The
Triplex High Flow pumps are self-priming and can run dry
without harm. They are intended for intermittent duty cycles but
can be run continuously for a 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
Allow pump to prime with discharge line (or spray valve) open, to
avoid airlock. Built-in pressure switch will shut off pump
automatically when discharge valve is closed and will restart
pump when valve is opened. When pump runs out of liquid, it
will continue to operate. Running dry will not damage the pump.
Turn off manually.
DEMAND OPERATION (intermittent duty)
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.
BYPASS OPERATION (if equipped)
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
continuous duty service due to limited motor brush life.
Operation at lower pressures and temperatures, however, will
extend overall pump service life.
Model R3521 / 03521 Series
High Flow Triplex Pump
SPECIFICATIONS
Pump Design:
Motor Design:
Voltages:
Pump Rating:
Max. Amp. Draw:
Pump Head:
Elastomers:
Diaphragm
Check valves
Max. Flow Rate:
Max. Pressure:
50 psi (3.4 bar) max running pressure
Liquid Temp:
Duty Cycle:
Weight:
Wiring Options:
Plug-in Ports:
* Consult factory for higher fluid temperature options
** C onsult factory for continuous duty application
*** Consult factory for other type of port fittings
3 chamber diaphragm
Permanent magnet DC
12, 24 VDC, 115 VAC
IP 54 (splash proof)
12 VDC: 9 amps
24 VDC: 6 amps
115 VAC: 3 amps
Polypropylene
Geolast, Santoprene
EPDM, Viton
4 GPM (15.1 LPM)
60 psi (4.1 bar) switch cutoff
40° F (4° C) Min*
140° F (60° C) Max*
Intermittent**
5.05 lbs ( 2.29 kg) max.
Standard 18 AWG leads
1/2" (12.7 mm)
TM
®