Document 6bEBXYEmbBY8GJarVnXJNrak1

W. F.-Hirschman Co., Inc. Ventilators Hirschman's S E and F Roof Ventilators For our Effico Ventilator see preceding pages Recommendation of F Electric Ventilator--Is a high class ventilator where a high exhaust velocity is required at certain periodical times or resistance (static pressure) is encountered. Where our Effico Rotary Head, or the Effico Wind-Electric Automatic Ventilator, due to obstructed location or its moderate even capacity is not required, then we recommend the Hirschman F Ventilator. Dampers--Chain, pneumatic or elec trically operating; close fitting damper supplied with all sizes if required. Fire Electric Ventilator Non-Automatic (Patented) Damper--with fusing link furnished if required.. There are no outside louvers Motor--Condenser Motor, Brushless, to freeze or blow shut. Cummutatorless, Variable Speed,, fully, enclosed, very quiet running, are furnished As an Exhaust Head at extra cost when above characteristics FOR EXHAUST FAN are essential. SE Ventilator design is such that air DIMENSIONS OF HIRSCHMAN F, SE AND LU VENTILATORS Vents S E Weight - Crated Dimensions, In. (See Diagram) A BCDE FH Thickness of Metal Ga. Galvan. Oz. Copper Head Base Head Base driven 1200 ft. velocity through the head, registers only .015 water gauge static pressure a performance of unequalled merit. Thus for a fan or high heat exhaust 30 50 75 110 150 200 300 360 - 420 490 520 600 12 6 10 22 24 16 12 18 6 16 32 24 24 12 24 8 21 42 30 30 12 30 8 27 52 30 36 18 36 1ft 33 62 30 42 18 42 1ft 38 71 30 48 18 48 12 42 81 36 54 18 54 12 46 91 36 60 24 60 12 60 102 36 66 24 66 16 66 102 36 72 24 72 16 70 120 36 78 24 84 16 76 120 36 92 24 24 24 24 22 22 20 18 18 18 18 18 18 24 16 24 16 24... 16 20 18 18 20 18 20 18 20 18 20 16 24 16 24 16 24 16 24 16 head, it is highly effective. 16 When so used and the fan 16 20 is cut off the ventilator still 24 ventilates as a syphon venti 24 lator. There are no shut 24 24 ters to blow or freeze shut. 24 Is also vision-proof, will 32 resist back drafting during 32 32 a five mile wind against an adverse temperature differ ence of 10 deg. fahr. Also CAPACITIES OF HIRSCHMAN F VENTILATOR during the same wind veloc Size of Stack. In. ' 18 Speed 1425 1750 1140 . 855 1140 1420 Cu. Ft. Min. Less Than Vt Sp. Cu. Ft. Cu. Ft. Min. Min. Ye in. Sp. Vt in. sp. 650 900 1600 1675 - 2000 2200 900 1350 1600 i200 Type of Motor HR. Tele graph Code. TX). SR. SR.D. S.DR.. S.DR. \ T.Q. 1/30 Range 1/23 Ram 1/25 Rone 1/8 Rank 1/6 - Rap I/O Kaze ity will not back-draft unless a greater than static pres sure resistance of .025 water gauge. For information on wind pressure causing down draft in the angle of U or L buildings, write us. 780 2600 1700 900 S.T.D.Q. 1/6 Ray 24 850 3400 2600 1400 D.SR. 1/4 Rat H40 4500 3700 3200 S.DR. 1/2 Rugn 30 680. . 900 4500 6000 3600 5000 2700 3600 D.Q. sr?t. 1/4 Rein 1/2 Rinse 36 550 6500 5200 3900 SR. 1/2 Kime 900 7000 6000 5000 T.Q.D. 1/2 Rip 575 11000 490 10000 8000 7000 6500 S.T.QR.D. 3/4 Roar 5000 S.TR.Q.D. 1 Roast SE Ventilator are available. AUerating--S, single-phase, 60 cycle. R, two or three-phase, 60 cycle. T, ogle-phase, 25 cycle. Q, two or three-phase. 25 cycle. D. direct current. The low capacities are suitable for schools, theatres, auditoriums and other quiet running requirements. The head of the "F" Electric Ventilator sold separate makes an excellent Syphon Ventilator. REMEMBER--With the Hirschman F Ventilator you still have a good Ventilator when the motor is not running. 904 Ventilator && - The Swartwout Company - Swartwout Rotary Ball Bearing Ventilators Branch iTr'v, Offices: ' 18551 Euclid Avenue New York, N.Y., 103 Park Ave. Pittsburgh, Pa., Grant Bldg. Chicago, 111., 549 W. Randolph St. St. Louts, Mo., 1124 Chemical Bldg. Atlanta, Ga., Wm. Oliver Bldg. Cleveland, Ohio PRODUCTS-- Swartwout Rotary Ball Bearing Ventilators. Construction--Swartwout Rotary Ball Bearing Ventila- tors are built of Armco Ingot Iron or special metals as required. All joints are double seamed -- no bolts being used. All interior members are given a ` special rust-resisting * coating after punching r and forming. Bronze bearings re- et u ` ^^blving on bronze balls provide free rotation without the necessity of lubrication. Outside louver dampers are controlled easily from within the building by a special louver attachment which permits definite setting of area opening with out necessity of fastening the chain. Bases to fit standard sizes are made of the same metal, two gauges heavier than the ventilator. Erection and Opera tion--Swartwout Rotary Ball Bearing Ventilators leave the factory com pletely assembled. Swinging freely with the wind, Swartwout Ventila tors provide a continual suction of air from within the building. Survey Service--The Swartwout Company co operates with heating and ventilating engineers by making helpf u 1 recom mendations in the form of Swartwout Surveys. There is no charge for this service. Write for a copy of "The Gospel of Fresh Air," a new book on ventilation. Dimensions, Weights and Gauges of Swartwout Ventilators .. For dimensions, "A," "B." "C," "D," "F," in inches see table be low. In ordering only di mension "A" is re quired. Installation To insure proper in stallation ana immedi ate satisfaction, com plete directions fur mounting are supplied on each ventilator. .A B C D F Gauge Iron Wt. Copper, Net Wt.. Lb. Crated Wt.. Lb. 10 12 14 ,I9I % 12% 4 5 ll'A 341*44 .5 5% 14% !5'/2 '24 24 24 16 15 18 20 18 30 20 25 30 16 141,5 6 3% 17 24 16 35 40 18 20 24 30 16% wA 22 W/i 6% !%, 9 urn 6% 6% 6% '9% 19 21 23401?%` 24 24 >24 '22 18 18 20 . 24 45 50 60 120 55 65 . 60 175 36 33 13*A 11 341/2 22 24 160 240 42 48 381/, 44 1514 IMI'%A 41% 46% 20 20 28 225 28 32ft 390 465 54 49'/2 20% 13*4 47 20 28 485 690 60 55' 22% 13% 61 20 28 560 750 66 60% 24% 16*4 62% 20 28 650 825 72 66 27 I6>4 67% 20 28 780 1000 Dimensions, Weights and Gauges . of Swartwout Type B I--C--J Type C A B C DE F Gauge Iron Wt. Copper, Aver. Net Wt., Lb. Aver. Crated Wt., Lb. 10 18 14 5 5 22 24 12 18 16 5 5 14 18 18 5 5 s. 22 24 22 24 16 18 20 5 5 22 24 18 18 22 5 5 e 22 24 20 22 24 5 5 0 22. 24 24 22 7.8 5 5 is .22 30 22 34 5 5 20 24 28 36. 72 40 5 -5 .20 28 42 22 46 5 5 Ss 18 32 48 22 5? 5 5 18 32 54 22 58 5 5 "3 16 32 60 22 64 5 5 S' 18 32 66 72 70 5 V 16 32 72 22 76 5 5 18 32 13 18 26 35 38 45 55 80 95 105 115 125 140 155 170 15 20 28 37 , 4so0 ' 65 95 .110 125 135 150 165 185 200 905 .;?[ 3