SPECIFICATION DATA
Sample
Specification Sheet for FGR Series Inline Silencers
Silencer to be Model
( ) Inline Silencer manufactured by Innovative
Metal Industries, Inc., San Bernardino, California.
Unit to incorporate ( )
Oxel® ( ) bladed ( ) degree spiral attenuator(s) made
up of an absorbing layer, a barrier and another absorbing layer. The blades
are to be held in place by a matrix of spiral rods.
CONSTRUCTION:
Exterior wrap and transition of
unit to be constructed from 16 gauge minimum (0.060" thick) carbon steel
sheet per ASTM A366, all welded construction per MIL-I-1595A. The exterior
wrap is to be treated with a 1.5 pound per square foot layer of acoustical
dampening compound and then covered with a fiberglass acoustical insulation
bonded to a high velocity scrim cloth per Oxel® 919
treatment. Attenuation spirals to be constructed from stainless steel per
ASTM-A240.
Attenuation materials to be
fiberglass based acoustical insulation bonded to 26 gauge (0.016" thick)
acoustical lead sheet. All exposed fiberglass face to be bonded with a
fiberglass scrim cloth per Oxel® 919 treatment to a
minimum strength per square inch of 80 lbs. warp and 70 lbs. filler, packed
under a minimum of 5% compression. Fiberglass based insulation is vermin
and moisture proof with a flame-spread maximum of 25.
AIRFLOW SPECIFICATIONS:
Unit to provide a minimum of
( ) CFM of air flow at no more than ( )" w.g. pressure
drop across silencer.
ATTENUATION SPECIFICATIONS:
Silencer to provide not less
than the following attenuation:
