OPERATOR’S MANUAL | 23644400 | |
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OPERATION, INSTALLATION & MAINTENANCE | RELEASED: | |
REVISED: | ||
(REV. B) | ||
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ARO STOPR |
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PUMP SAVER CONTROL VALVE - 1/2” PIPE SIZE
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING 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 of a ruptured outlet hose or the pump runs out of me dia. For compressed air use only.
Operating Pressure Range . . . 20 175 p.s.i. (1.4 12 bar)
Temperature Range . . . . . . . . . 0_ to 180_F (18_ to 82_C)
BAC
OPERATION
The AROSTOP control valve senses an increased volume of air to the pump, beyond the preadjusted setting, and shuts off the air supply to the pump. The •runaway" condition may be caused by any of the follow ing: 1.) depleted pumping material, 2.) a ruptured line on the outlet of the pump, 3.) excessive cavitation in the material supply.
INSTALLATION
The AROSTOP valve should be installed in a filtered and regulated air line as close to the inlet of the pump as possible. Equipment other than a lubricator should not be installed between the AROSTOP valve and the inlet of the pump. Upstream plumbing from the AROSTOP valve should be 1/2" minimum. A swivel or 1/2" connector & coupler should be installed before the AROSTOP valve to facilitate easy adjustment. Use one AROSTOP valve for each pump. See typical installation pho to.
ADJUSTMENT
THE AROSTOP 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" sleeve clockwise to the maximum inward position. See ar row on sleeve of AROSTOP valve.
2.Supply AROSTOP valve with desired inlet operating pressure.
3.Depress •C" reset button on the AROSTOP 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 or until pump primes. If the pump does not reset
and run, repeat step (5). If pump operates, continue on th Test Sec tion.
TEST:
7.To test installation, with the pump operating, remove the pump (or siphon tube) from the material supply. If the pump shuts off, the unit is set properly.
8.If the pump continues to turn, resubmerge the pump (or siphon tube) in the material supply. Loosen the •B" locking nut and turn the •A" sleeve counterclockwise approx. one half turn, tighten •B" lock
ing nut, and repeat step (7).
RESTART:
9.To restart: Remedy the cause of the shutdown. If the air supply is shutoff, turn the air back on.
10.Depress the •C" reset button and hold it in approx. 3 seconds.
AROSTOP R is a registered trademark of The Aro Corporation.
P.O. BOX 151 D ONE ARO CENTER D BRYAN, OHIO 435060151
& (419)
