BNP
®
65 and 220 SUCTION BLAST CABINETS
Page 16
© 2019 CLEMCO INDUSTRIES CORP.
www.clemcoindustries.com
Manual No. 21309, Rev. J 01/19
Figure 20
5.7.5
Test the operation with the doors open and then
closed. Negative pressure inside the cabinet may cause
the doors to flex inward. Tests should be performed with
the exhauster running. Point the nozzle away from the
door during the tests and open the door only enough to
disengage the interlock switch. The interlocks should
stop the blasting when either door is open and permit
blasting when the doors are closed.
5.8
Optional Manometer
These instructions show several methods of taking static-
pressure readings (negative pressure) on reclaimers by
using a flexible-tube manometer. Use the method best
suited for the application. The instructions explain the
processes for taking periodic readings and show how to
permanently install the manometer for taking frequent
readings. A fitting should be installed when the
manometer installation is permanent, per Paragraph
5.8.6.3. Use silicone or other sealant around the fitting to
prevent leaks. The fitting should be capable of being
capped when the manometer tube is removed. A cap will
prevent leaks that alter the reclaimer’s separation
efficiency. Taking readings at different locations could
produce different readings. Static-pressure readings at the
door are generally 0.5" to 1" lower than those taken above
the reclaimer. The readings are reference points, so
readings should be taken using the same method each
time a reading is taken.
5.8.1
Refer to instructions packed with the manometer
for preparing and operating the manometer.
5.8.2
Connect one end of the 3/16" ID tubing to one of
the tubing connectors (elbows) at the top of the
manometer by pushing it over the barbed adaptor.
5.8.3
Leave the needle protector on the needle and
insert the needle into the other end of the tubing. The
ends of the tubing must fit tight on the manometer and
needle; leaks will cause inaccurate readings.
5.8.4
Open both manometer valves (elbows), per
manometer instructions.
5.8.5
Magnets on the manometer hold it in position on
the reclaimer or dust-collector body. The manometer
must be vertical so the fluid is level on both sides.
5.8.6
Needle placement:
Figure 21 shows the
manometer setup for taking both periodic and frequent
static-pressure readings.
5.8.6.1
Taking readings in the flex hose:
Remove the
needle protector and insert the needle into the flex hose
approximately 8" above the top of the reclaimer.
5
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Figure 21
8"
Cabinet Door
Detent Sleeve
Over-Travel Stop
Bracket Screws
Adjust the screw to push the
valve stem (over-travel stop)
in when door is closed.
Adjusting Screw
Loosen nut and move adjusting
screw sideways to center the
screw on the over-travel stop.
Adjusting Screw Nut
Loosen the bracket screws and
move the bracket up or down to
center the adjusting screw on the
over-travel stop.
Actuator Adjusting Bracket
Some items removed or rotated for clarity.
Reclaimers are for reference and
may differ from those shown.
Refer to Paragraph 5. 8.6.1.
Insert the needle into flex hose
8" above the top of the
reclaimer.
Refer to Paragraph 5.8.6.2.
Place the needle so the tip is
inside the door opening.
Carefully close the door on
the needle.
Refer to Paragraph 5.8.6.3.
When taking frequent
readings, install a
permanent fitting in the
reclaimer wall just below
the inner cone, as shown.
