PULSAR
®
PLUS 55-S SUCTION BLAST CABINET
Page 15
© 2021 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 30423
5.3.3
If pulsation occurs in the media hose, either
media is damp and caked, or not enough air is entering
the media stream. While blasting, loosen the lock nut and
slowly turn the adjusting screw out (counterclockwise
when viewed from the top) until the media flows smoothly.
Tighten the lock nut finger-tight to maintain the setting.
5.3.4
If media flow is too light, decrease air in the
mixture by turning the metering screw in (clockwise
when viewed from the top) covering more of the holes so
less air enters the media hose. Tighten the lock nut
finger-tight to maintain the setting.
5.4
Reclaimer Static Pressure (exhaust damper)
Figure 16
5.4.1
Static-pressure settings vary with size of the
reclaimer, and the size, weight, and type of media.
5.4.2
Adjust static pressure by opening or closing the
exhaust damper located on the top of the power module, as
shown in Figure 16. The damper plate lines up with the
handle. When the handle is vertical, the damper is fully open;
when the handle is horizontal, the damper is fully closed.
If the damper is not opened far enough, the
reclaimer will not remove fines, resulting in dusty
media and poor visibility; or it will not convey media,
causing media buildup in the hose between the
cabinet hopper and power module.
If the damper is opened too far, it may cause
carryover (usable media carried into the dust
collector)
and
result
in
excessive
media
consumption.
Open only as far as necessary to obtain a balance of
maximum dust removal without media carryover.
0
CLOSED
CLOSED
If a manometer is not available, begin with the
handle pointing toward 45 degrees, then adjust as
instructed paragraphs 5.4.2 and 5.4.4.
Figure 16
5.4.3
A manometer (flexible U-tube) or differential-
pressure gauge is useful for adjusting and monitoring
static pressure. The manometer kit and differential-
pressure gauge are listed in
Section 10.1: Optional
Accessories
. Refer to Section 5.10 for using the
manometer to set reclaimer static pressure. The following
are static-pressure starting points for given media. Static
pressure may need to be lower with finer media, higher
with coarser media.
If a manometer is not available,
begin with the damper about half open (handle
pointing toward 45 degrees on the label).
Glass Bead No. 6 and 7 .................................. 3-1/2" – 4"
Glass Bead No. 8 to 12 ................................... 3" – 3-1/2"
Aluminum Oxide 60-Mesh to 80-Mesh .................. 4" – 5"
Aluminum Oxide 80-Mesh to 180-Mesh ................ 3" – 4"
5.4.4
To adjust the damper:
1. Loosen the tensioning nut located on the backside of
the damper. After completing the adjustment, tighten
the nut to maintain setting.
2. Adjust the damper to provide the static pressure
noted in Paragraph 5.4.3 or to 45 Degrees.
3. Run the media through several blast cycles, allowing
the reclaimer to function with these settings. Inspect
media in the reclaimer and fines in the dust collector,
as noted in Paragraph 5.4.2. Continue adjusting
static pressure until optimum dust and fines removal
without carryover is attained.
4. When using a manometer, make a note of the
optimum setting so adjustment may be made (as
noted in Paragraph 5.4.5) to maintain that setting.
5.4.5
As dust accumulates on the outer surface of the
cartridge, static pressure drops, requiring one or more of
the following adjustments:
Increase pulse pressure, per Section 5.8.
Decrease pulse timing (Off time), per Section 5.9.2.
Open the damper to bring static pressure to
optimum setting.
5.5
Cabinet Air-Inlet Damper
5.5.1
Once the damper is initially set, per Section 2.5, it
seldom requires readjustment. The initial setting produces
approximately 0.5
to 0.75
of static pressure in the cabinet
enclosure.
Do not confuse cabinet static pressure with
reclaimer static pressure, which is controlled by the
exhaust damper, as noted in Section 5.4. Reclaimer
pressure must be set before cabinet pressure.
Damper Plate
Label, Damper Degrees
Damper Handle
