PULSAR
®
IX SUCTION BLAST CABINET
Page 5
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 23425, Rev. C, 07/19
1.5.2.4
A toggle switch (sequence switch) located on
the sequence panel cover, enables or disables the
timing sequence. If the sequence switch is kept ON, the
timing sequence energizes when the exhauster is turned
ON, and the cartridges are automatically pulsed when
the exhauster is running. If the switch is OFF, the timer
does not energize, and the cartridges are not pulsed.
NOTICE
Do not pulse new dust collectors or
replacement cartridges until the cartridges are
properly seasoned. See Section 7.9. Pulsing
unseasoned cartridges can decrease the
efficiency of dust collectors and cause
premature cartridge failure.
1.6
Nozzle Options
1.6.1
Unless otherwise specified at the time of order,
cabinets are shipped with a No.5 (5/16" orifice) ceramic
nozzle and No. 5 (5/32" orifice) air jet. Optional, more
durable tungsten carbide and boron carbide nozzles are
available as shown in Section 9.2.
Use boron carbide
nozzles when blasting with aggressive media, as noted
in Section 1.9.4. Refer to the air consumption table in
Figure 5 for air consumption of nozzles.
1.7
HEPA (high efficiency particulate air)
Filter
1.7.1
Optional HEPA afterfilter provides additional
filtration. A HEPA filter must be used when removing
lead coatings, Heavy metals, or any other toxic materials.
HEPA filter is listed in
Section 9.1
:
Optional Accessories
.
WARNING
All dust is hazardous to breath.
Emissions can
occur from the dust collection system. Identify
all materials that are to be removed by blasting;
if any toxic materials such as lead dust or dust
from other heavy metals and corrosives, or any
other toxic materials are being removed, use a
HEPA afterfilter to assist in maintaining
inhalation hazards below the permissible
exposure limits (PELs). Prolonged exposure to
any dust can result in serious lung disease and
death. Short-term ingestion of toxic materials
can cause serious respiratory injury or death.
Filtration may not be adequate in reducing all
inhalation hazards. It remains the employer or
user’s responsibility to ensure all emissions are
safe to breath.
1.8
Optional Reclaimer Liners
1.8.1
Replaceable rubber reclaimer-liners prolong
service life of the reclaimer. They should be installed
when using silicon carbide, aluminum oxide, or other
aggressive media, as noted in Section 1.9.4. Rubber
reclaimer liners are shown in
Section 9.1
:
Optional
Accessories, Figure 40
.
1.9
Blasting Media
Always use media specifically manufactured for blasting,
and those which are compatible with the surface being
blasted. Abrasive produced for other applications may
be inconsistent in size and shape, contain particles that
could jam the abrasive metering valve, or cause irregular
wear. Always obtain safety data sheet (SDS) for the
blasting abrasive prior to blasting and identify material
being removed by blasting, paying particular attention to
worker health risks and presence of any hazardous/toxic
substances.
1.9.1
Most common reusable media specifically
manufactured for blasting can be used in ZERO Pulsar
®
cabinets. The listing of media sizes shown in this section
and in Figure 4 are provided as a guideline only. The
guideline is based on standard 5/32" orifice air jet with
5/16" nozzle and average conditions, such as blast
pressure, media/air mixture, visibility inside the cabinet,
humidity, and reclaimer cleaning-rate.
Several variables that affect the reclaimer cleaning rate
include reclaimer size (cfm), contamination of parts
being blasted, media friability, damper setting (static
pressure), and dust-collector filter loading (differential
pressure across the dust filters).
As a rule, larger orifice air jets and nozzles deliver more
media, requiring higher performance from the reclaimer.
When using larger nozzles, the maximum mesh size of
media will be smaller than normally recommended.
Using media finer than those recommended may
decrease visibility and, at some point, carry over to the
dust collector. Media coarser than those recommended
may be too dense for the reclaimer to recover from the
cabinet hopper.
1.9.2 Steel Shot and Steel Grit:
Steel shot S-270 to
S70 or steel grit 40-mesh to 120-mesh may be used in
Pulsar
®
IX cabinets configured for using steel media.
Switching to steel media requires a smaller diameter
conveying hose (usually reduced one size from standard.
Rubber curtains should be used to protect the cabinet
walls from peening and rapid wear. Metallic media kits
are listed in Miscellaneous Accessories in Section 9.1.1.
