TECHNICAL DATA SHEET MARTIN® SONIC HORN 75 HZ 90 DEGREE Martin® Sonic Horns generate and magnify low-frequency, high-pressure sound waves to cause dry particulate buildup to resonate and fluidize, allowing the material to be removed from the vessel by constant gas flow or gravity. The Martin® Sonic Horn 75 Hz 90 Degree produces 147 dB at one meter with a frequency of 75 Hz. Prevents dry particulate build-up to increase system efficiency and life. Reduces system downtime. Reduces maintenance and repair costs. Effective around pipes and behind obstacles; Sonic energy de-bonds particulate over a 360-degree sweep, cleaning inaccessible parts. P/N Prefix Section A Material Section B Material Section B Style Section C Construction Section C Material Section C Flange Sound Generator Does not create structural fatigue or damage. Complies with OSHA dB regulations for vessel interiors. Improves effectiveness and prolongs life of catalyst. Improves the performance and prolongs the life of equipment. Aids compliance with emissions regulations. Lowers operating costs. Boilers, heat exchangers, economizers Silos, hoppers, cyclones SECTION C CONSTRUCTION C: Cast F: Fabricated SOUND GENERATOR D: Ductile Iron S: Stainless Steel Blank: No Generator SECTION B STYLE 0: Straight 9: 90 Degree Elbow SECTION C FLANGE 0: No Flange (N/A with cast sections) 1: With Flange SECTION B MATERIAL D: Ductile Iron S: Stainless Steel SECTION C MATERIAL D: Ductile Iron S: Stainless Steel M: Mild Steel Selective catalytic reduction (SCR) SECTION A MATERIAL D: Ductile Iron S: Stainless Steel Form No. L3888-05/13 © Martin Engineering Company 2011, 2013

TECHNICAL DATA SHEET *Sonic Horn can be any combination of listed materials. Cast Ductile Iron is ASTM A-240. Stainless Steel is ASTM A-395 60-40-18. Neponset, IL 61345-9766 USA COMPANY WITH Problem Solved™ GuA*AtfrGQ>! Form No 3888 05/13 © Martin Engineering Company 2011, 2013