Labconco Protecto Stainless Steel Perchloric Acid Laboratory Fume Hoods 9682100 - Manual (Page 19)

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Chapter 3: Getting Started
Connecting to the Protector
Perchloric Acid Hood
Exhaust System
The stainless steel exhaust
connection should be installed by a
qualified HVAC contractor.
The exhaust connection on your hood
has been designed for 11" nominal pipe
(11.00" OD) to allow for minimum static
pressure loss with proper transport
velocities away from the hood. Consult
Labconco Customer Service should you
require help sizing your blower for the
exhaust volume and total system static
pressure loss.
The selected exhaust duct material
must be fabricated out of type 316
stainless steel, or type 1 unplasticized
polyvinyl chloride material. The duct
should be fully welded in the case of
the stainless steel material or solvent
bonded in the case of polyvinyl
chloride so that it does not feature any
cracks or holes to allow for the
collection of Perchloric acid salts.
The exhaust duct system for a
Perchloric Acid Fume Hood should be
run in a vertical position and feature
horizontal runs only where it cannot
be avoided. Should a horizontal run
be a part of your exhaust system, it
!
WARNING: The weight of the stainless steel or
PVC exhaust ductwork system must be
supported independently of the hood
superstructure. Do not allow this weight to be
supported by the hood structure as damage to
the hood may occur.
!