Graco EO-1 Pump Packages User Manual

EO-1 Pump Packages

DESCRIPTION

EO-1 is a versatile series of pumping units designed for use with
virtually any type of intermittent lube system requiring oil flow up
to 12 in3/min (200 cc/min). Each of these lube packages consists of
a 115 or 230 volt AC, 50/60 Hz, single phase electric motor direct
coupled to a gear pump and mounted on a steel or plastic reservoir.
A wide range of reservoir sizes are available and all are equipped
with a low level switch as standard. These pump assemblies are
rated for service up to 580 psi (40 bar). See "Specifications" for
additional details.

FEATURES

Built in vent valve permits use with single line parallel •
systems.

And adjustable internal relief protects pump from excessive •
pressures. Factory set at 580 psi (40 bar).

OPERATION

Reservoir with removable covers, sized at 0.8, 1.6, 2.0 and 3.2 •
gallons (3, 6 and 12 liters).

Reservoir has a visual level gauge, pressure gauge and filler/•
strainer with screw on cap.

Motor and low level switch meet EEC requirements (CE Mark •
compliance).

The motor/pump assembly on an EO-1 pump package runs
whenever power is applied. On/off cycles are achieved by using an
optional timer that has user selectable off and on times or control
can be via the machine PLC where available and desired.

APPLICATIONS

The EO-1 is ideal for small to medium size series progressive of
parallel systems requiring intermittent metered lubrication with an
electrically driven pump. Combined with Trabon series progressive
divider valves, LubriSystem Injectors, or Injecto-Flo Piston
Distributors, the EO-1 can be operated on a timer, cycle switch, or
pressure switch controlled cycle for precision lubrication.

Figure 1

Trabon® EO-1 Pump Packages

350 SUS

2500 SUS

7500 SUS

0 200 400 600 800 1000
(13.8) (27.6) (41.4) (55.2) (69.0)

(262.2) 16

(229.5) 14

(196.7) 12

(163.9) 10

(131.1) 8

(98.3) 6

(65.6) 4

(32.8) 2

0

Output (in3/Min.) (cc/Min.)

SPECIFICATION

Motor Voltage 115 + 10% VAC, 50/60 Hz, 1ø

230 + 10% VAC, 50/60 Hz, 1ø

Current Consumption 4.3A in-rush, 2.15A running @ 110 VAC, 1ø

1.9A in-rush, 0.9A running @ 220 VAC, 1ø

Motor Power 1/12 HP

Motor Speed 1680 RPM @ 60 Hz, 1ø

1340 RPM @ 50 Hz, 1ø

Pump Flow Rate 12 in

Pressure Relief valve protected 145-650 psi (10-45 bar)

Oil Viscosity ISO 50-1500 (SUS 250-5000)

Operation Intermittent, 20% Duty Cycle @ max pressure

3

/min (200 cc/min), see chart below

Factory set @ 580 psi (40 bar)

(650 psi)

L12605

Low Level Switch 10 watt @ 110/220 VAC, 50/60 Hz, 1 pH

Contacts (normal closed, held open)

Suction Strainer 100 mesh screen

Pressure Gauge 0-850 psi (0-60 bar)

Electrical
Connections

Reservoir Material

Translucent Plastic 1 gallon polypropylene

Metal Painted steel with guarded glass level tube

Wire terminals in motor junction box, screw
terminals in Low Level Switch connector

2 gallon glass filled nylon 6-6

Test oils = Mobile DTE Light - 158 SUS @ 1000F (350 SUS @ 700F), Mobilgear 629 - 750 SUS @ 1000F
(2500 SUS @ 700F), Mobilgear 634 - 2337 SUS @ 1000F (7500 SUS @ 700F)

EO-1 PUMP

OUTPUT -VS- BACKPRESSURE

BACKPRESSURE PSI (BAR)

Figure 2

RELIEF VALVE
SET AT 580 PSI

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