PIAB C 1200 Series, Руководство по устранению неисправностей

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VACUUM CONVEYORS
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ACHIEVING THE DESIRED RATE
Is the air pressure at least 87 psi entering into the pump, in the proper line size, and with enough volume?
A. If the conveyor is functioning fine but the rate needs to be changed, try adjusting the timers. Since each ma-
terial conveys in a different manner, there are not particular on and off times that will achieve certain rates. If
the material has all been dumped out and the bottom door remains open, the off time can be shortened. Try
minor adjustments, increasing the on time and decreasing the off time. The off time may need to be increased
as the on time is increased to avoid packing the material in the conveyor.
Note: The conveyor has a maximum internal volume, please consult the user manual for your specific conveyor.
B. If the product tends to move in slugs (big clumps of material that fill the line) or dense phase, increased aspi-
ration may be necessary. The easiest way to add more air is at the feed point.
1. Feed Wand - The standard feed wands include two places to adjust the aspiration. The black piece at
the top of the wand twists around the wand, covering or uncovering openings in the actual wand. The more
the openings are uncovered, the more air that is allowed to enter the system. In order to rotate the black
piece; unscrew the bottom wing nut. Retighten when the desired amount of opening is uncovered.
a.The inside tube can be adjusted up or down. If the tube is all the way down, touching the cage, there
will be less aspiration and a greater amount of product picked up. If the tube is pulled out to be even
with the outer tube, there will be increased aspiration and a decreased amount of product picked up.
The tube can be adjusted by unscrewing the top wing nut.
2. Feed Adapter - The standard feed adapters include two ball valves. Both are adjustable which allow in-
creased aspiration.
a. If the material is not flowing easily into the cone on the feed adapter, the ball valve closest to the
cone should be opened up until the product freely flows. This ball valve is attached to a pipe that should
be extended all the way out, approximately 8.5". If the material will not even flow into the cone, some
type of aspiration or agitator may need to be added before the feed adapter. The second ball valve
should be opened more if the material is conveying in dense phase.
b. If the material is very free flowing, it may drop from the cone into the perpendicular tube and clog
the tube. If this is the case, push the ball valve attached to the inner tube in closer to the cone.
3. Injection Valve - An injection valve can be added into a system no matter which feed method is being
used. There are two types of injection valves. The first type of injection valve has a ball valve that can be
opened for increased aspiration. The second type of injection valve senses a high vacuum and allows as-
piration as needed
Conveyor Min. Compressed
Air Line
Max. Required
Volume (scfm)
C21 100 classic .25 "14.8
C21100 .5 "14.8
C series 200 .5 "29.7
C series 400 .5 "59.0
C series 600 1.0 "89.0
C series 800 1.0 "118.6
C series 1200 1.0 "178.0
C series 1600 1.0 "237.3