Document RJM25Z1emYG9maZazkN5Ynkdz

Air Filters Research Products Corporation 1011 E. Washington Ave., Madison, Wisconsin WALTON AIR FILTERS High Dust Removal Efficiency--Low Air Resistance--Long Life Walton air filters operate on the im pingement principle, using an entirely new filter medium--expanded fibre. Large, uniformly distributed area holds large quantities of dust yet cleans effectively, with low air restriction. Air flowing through the filter impinges against more than 30,000 tiny baffles per sq ft, de positing dust, and changing direction 21 times. To prevent clogging and insure uniform deposit of dust, the filter is made in three sections--at the inlet, coarse open mesh; middle and outlet sections progressively finer mesh; in each section a sticky com pound is applied in progressive amount. Progressive mesh and progressive sticki ness reduce clogging and insure high holding capacity. Exposed surfaces are free from excess stickiness--clean to handle. The sticky compound will not drip or volatilize at high temperatures, nor gum at low temperatures, and is odorless. , Walton air filters have been used success fully on warm air furnaces, ventilating and air conditioning systems, automobile air conditioning, industrial . dust collectors and wherever a filter is required for re moving dust and pollen from the air. Diagrammatic cross section of Walton filter. Three sections with progressively finer mesh and Progressive stickiness. Large dust particles ore trapped' by the coarse section, finer particles by the finer mesh--deposited uniformly throughout the filter. HIGH DUST REMOVAL EFFICIENCY The Walton filter maintains high clean ing efficiency for all common dust sizes. Because of its controlled mechanical con struction, blow holes do not form and pass dirty air. 'Efficiency of the filter actually increases as it becomes laden with dust. Dust particles deposited on the baffle surfaces absorb the sticky compound, and, in turn, retain additional dust particles. Vibration cannot settle or pack the filter and thus reduce its efficiency. Particles cannot N,break off and blow into the air stream. WALTON AIR FILTER STANDARDS Walton air filters are made in five standard sizes to fit most commonly used frames, special sizes for special requirements, and to standard or special specifications. Standard Specifications .Recommended air capacity____ 250 to 350]cfm per 1 ft of face area Average efficiency (depending on type of dost)..____ ._86.5 to 100% Holding capacity (standard dust). 132 grams per sq ft Resistance when replacement is necessary at 250 cfm per sq ft of face area_. _____ 0.18 in. water Resistance when replacement is necessary at 350 cfm per sq ft of face area____________ _____.0.55 in. water Standard Sizes 20 x 25 x 2 in. 20 x 20 x 2 in. 16 x 20 x 2 in. 16 x 25 x 2 in. 15 x 20 x 2 in. Special sizes for any purpose. Research Products Corporation engineers will gladly submit recommen dations for any special applications that may be required. Air Filters H. J. Somers, Incorporated Factory and General Office 6063 Wabash Avenue Detroit, Mich. Somers Washable Air Filter All Welded Vee Type These filters eliminate the necessity, replacement. Somers Hair Glass Filters provide everything required in an efficient air cleaning system. Consider these features: High rating for dust, soot and bacteria separation. Require no adhesive, coating or impregnation. Indestructible in normal service. Minimum Low Pressure Drop. Odorless and non-absorptive. Fireproof; Washable; Do not rot nor disintegrate; Permanent.. Somers Hair Glass Filters consist of a hot galvanized frame holding galvanized wire doth packed with hair-spun glass strands. The glass strands are flexible, do not break up and cannot be drawn into air stream. Hair-Glass, being chemically inert, has no facility of absorption; it cannot rust and lasts indefinitely in service. Water either hot or cold may be used to clean it, without impairing its efficiency, expense and the inconvenience of periodic Somers Washable Air Filter--All Welded Vee Type--Stock Sizes (Partial List) :Frame Size Height and Length In. 151/2 X 24*/2 155/6 X 24% 16 z 21% 16 x 25 16 * 25 16 z 25 16 x 25 16 x 25 m * w/i 18 x 18 19 x 20 19'/, 1 19'/, l9'/4 X 20 i9y. x i9*/2 19'/? X 19'/, 19'/, x 19'/, I9V5 X 19V5 1955 20 *X l9'/2 25 20 X 30 20 x 20 20 x 30 20 x 20 20 x 20 20 x 20 20 x 20 20 20 20 x 25 2oy, x 20% Frame Depth In. 3* 3% 3)fi 3'/. 3% . 31/* 3% 336 3'/b 336 336 3'/, 3 3 3'/, 2 3 31/, 336 336 316 3 y/4 2 3 3 3y%/4 3 Filter Surface Sq-In. 1023 1110 816 1056 1632 1344 1440 864 800 864 1482 1039 1039 936 1053 480 936 1170 1800 1800 1040 1560 1200 480 840 960 1320 1560 550 For Average Dry Filter Installations CFM 1023 1110 816 1056 1632 1344 1440 864 600 864 1482 1039 1039 936 1053 480 936 1170 1800 1800 1040 1560 1200 480 840 960 1320 1560 550 Wet Application where water sprays are applied against filter for hu midifying CFM 511 555 408 528 816 672 720 432 400 432 741 519 519 468 526 240 468 585 900 900 520 760 600 240 420 480 660 780 275 Other sizes from 9>ij x 30 to and inclusive of 31 in. x 23) also available. Send for complete stock size list. Frames zinc plated for 100 hour salt water spray test. . Refill may be inserted if necessary.. Quotations and further engineering data, including master holding frame drawings will be sent on request. 931