POOL PAL BLAST MACHINE
Page 3
© 2008 CLEMCO INDUSTRIES CORP.
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www.clemcoindustries.com
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Manual No. 24813
1.3.6.3
The components of the remote control system
are shown in Figure 2. The controls include the inlet
valve, diaphragm outlet valve, an 18-inch long
interconnecting hose, control handle, 21-foot long
urethane twinline control tubing, tubing unions, and
nylon ties.
1.3.6.4
Clemco remote controls operate pneumatically
on return air. If the control handle lever (the activator for
the remote control system) is in the up (no blast)
position, one stream of air travels down the outbound
twinline (See Figure 2) and stops at the control handle.
The normally-closed inlet valve remains closed, and the
normally-open outlet valve remains open. As long as the
control handle lever remains up, the remote control
system is inactive. When the lever is pressed, air from
the outbound line returns through the return line to open
the inlet valve and close the outlet valve. This action
pressurizes the blast machine and begins the blasting.
Releasing the handle exhausts the control air, which
closes the inlet valve and opens the outlet valve, which
depressurizes the blast machine and stops the blasting.
1.3.7 Compressed-air
Requirements
1.3.7.1
The size of the compressor required depends on
the orifice size of the nozzle and blasting pressure.
Unless specified otherwise, blast machine packages are
supplied with a 1/8" orifice nozzle. Nozzles larger than
1/4" are not recommended because the accelerated
velocity rapidly wears the blast hose.
1.3.7.2
Refer to the table in Figure 3 to determine cfm
requirements. The table shows air consumption of
nozzles when new. It does not show the recommended
compressor size. As nozzles wear, they will consume
70% to 80% more air. Consult with a compressor
supplier for suggested compressor size based on the air
consumption of the next larger orifice size.
Some item are rotated for clarity
Figure 2
Nylon Tie
Outlet Valve
Outbound Line
Inlet Valve
Safety Petcock
Attach outbound line to
fitting on Port No.1
Attach return line to
fitting on Port No. 2
Blast Hose, Shown for reference
Urethane Twinline Tubing
Interconnecting Hose
Control Handle
Urethane Twinline Tubing
Tubing Unions
(Lead Tubing)
Cut tubing to different lengths
to avoid cross connecting
Return Line
