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OPERAT
OR’S MANUAL
23644Ć400
RELEASED: 1-30-81
REVISED: 6-23-00
(REV.
B)
ARO STOP
R
OPERATION,
INST
ALLA
TION & MAINTENANCE
23644-400
PUMP SAVER CONTROL VALVE - 1/2” PIPE SIZE
READ THIS MANUAL CAREFULL
Y BEFORE INST
ALLING,
OPERA
TING OR SER
VICING THIS EQUIPMENT
.
It
is the responsibility of the employer to place this information in the hands of the operator
. Keep for future reference.
GENERAL
DESCRIPTION
This device is to terminate operation of a 4" to 7" reciprocating type air
motor in the event ofa rupturedoutlet hose orthe pump runsoutof meĆ
dia. For compressed air use only.
Operating Pressure Range 20 Ć 175 p.s.i. (1.4 Ć 12 bar)...
Temperature Range 0_ to 180_F(Ć18_ to 82_C).........
OPERATION
The AROĆSTOP control valvesenses an increased volume ofair to the
pump, beyond the preadjusted setting, and shuts off the air supply to
the pump.The runaway"conditionmay becaused byanyof thefollowĆ
ing: 1.) depleted pumping material, 2.) a ruptured line on the outlet of
the pump, 3.) excessive cavitation in the material supply.
INSTALLATION
The AROĆSTOP valveshould be installed in afiltered and regulated air
line as closeto the inlet of the pumpas possible. Equipment other than
a lubricator should not be installed between the AROĆSTOP valve and
the inlet of the pump. Upstream plumbing from the AROĆSTOP valve
should be1/2"minimum. Aswivelor 1/2"connector& couplershouldbe
installed before the AROĆSTOP valve to facilitate easy adjustment.
Use one AROĆSTOP valve for each pump. Seetypical installation phoĆ
to.
B
A
C
ADJUSTMENT
THE AROĆSTOP VALVE MUST BE PROPERLY ADJUSTED AND
TESTED. THE INSTALLATION SHOULD BE TESTED REGULARLY
AND ADJUSTED WHEN A CHANGE IN OPERATING CONDITIONS
OCCURS.
1. Turn A" sleeveclockwise to the maximum inward position. SeearĆ
row on sleeve of AROĆSTOP valve.
2. Supply AROĆSTOP valve with desired inlet operating pressure.
3. Depress C" reset button on the AROĆSTOP valve to start the
pump. Open the pump outlet to the desired flow condition.
4. Turn A" sleeve counterclockwise slowly until the pump stops.
5. Turn A" sleeve clockwise one turn and tighten B" locking nut
against body.
6. To restart pump, depress the C" reset button and hold it in for
approx. 3 seconds oruntil pump primes. Ifthe pump doesnot reset
and run, repeatstep (5). If pump operates,continue on thTestSecĆ
tion.
TEST:
7. To test installation, with the pump operating, remove the pump (or
siphon tube)from the materialsupply.If thepump shutsoff,the unit
is set properly.
8. If the pump continues to turn, resubmerge the pump (or siphon
tube) in the material supply. Loosenthe B" lockingnut and turnthe
A" sleeve counterclockwise approx. one half turn, tighten B" lockĆ
ing nut, and repeat step (7).
RESTART:
9. To restart: Remedy the cause of the shutdown. If the air supply is
shutĆoff, turn the air back on.
10. Depress the C" reset button and hold it in approx. 3 seconds.
E2000 D PRINTED IN U.S.A.
&
(419) 636-4242
D
F
AX (419) 633-1674
INGERSOLL-RAND COMPANY
P.O.BOX 151D ONEARO CENTERD BRYAN, OHIO43506Ć0151
AROĆSTOPRis a registered trademarkofTheAroCorporation.