Document MG0KEpG05By2VEXJ3XgkZgZza

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 F 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. Cumm'utatorless, 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 driven 1200 ft'- velocity DIMENSIONS OF HIRSCHMAN F. SE AND LU VENTILATORS through the head, registers Vents SE Weight Crated Dimensions, In. (See Diagram) Thickness of Metal Ga, Galvan. Oz. Copper A BCDE F H Head Base Head Base only .015 water gauge static pressure a performance of unequalled merit. Thus for a fan or high heat exhaust 30 12 6 10 22 24 16 12 24 24 16 16 head, it is highly effective. 50 18 6 16 32 24 24 12 24 24 16 16 When so used and the fan 75 110 150 24 8 21 42 30 30 12 30 8 27 52 30 36 18 36 10 33 62 30 42 18 24 22 22 24 20 18 16 18 20 16 20 24 is cut off the ventilator still ventilates as a syphon venti 200 42. 10 38 71 30 48 18 20 18 20 24 lator. There are no shut 300 360 420 48 12 42 81 36 54 18 18 54 12 46 91 36 60 24 18 18 18 20 20 24 24 ters to blow or freeze shut. 60 12 60 102 36 66 7.4 18 16 24 24 Is also vision-proof, will 490 66 16 66 102 36 72 24 16 16 24 32 resist back drafting during 520 600 77. 16 70 120 36 78 24 84 16 76 120 36 92 24 18 18 16 16 24. 24 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. Speed R.p.m. Cu. Ft. Min. Less Than Vt in. Sp. Cu- Ft. Cu. Ft. Min. Min. % in. Sp.j3/g in. Sp. Type of Motor Tele- H.P. SSe ity will not back-draft unless a greater than static pres sure resistance of .025 water 12 1425 1750 650 900 T.D. 1/30 Range gauge. For information on SR. 1/25 Ram wind pressure causing down 1140 1600 18 855 1140 1675 2000 900 1350 SR.D. S.DJL S.DR. 1/25 Rone draft in the angle of U or L 1/8 Rank 1/6 Rap buildings, write us. 1420 2200 1600 iioo T.Q. 1/6 Raze 24 . 780 850 570 1140 2600 3400 4000 4500 1700 2600 3000 3700 900 1400 2100 3200 S.T.D.Q. 1/6 Ray D.SR. 1/4 Rat S.T; S.DR. 1/1 Rash 1/2 Rugn 30 680 4500 3600 2700 D.Q. 1/4 Rein 900 6000 5000 3600 SRX 1/2 Rinse 36 550 6500 5200 3900 SR. 1/2 Rime 900 7000 6000 5000 T.Q.D. 1/2 Kip 42 575 11000 490 10000 8000 7000 6500 S.T.OR.D. 3/4 Roar 5000 S.TR.Q.D. 1 Roast are available. AUerating--S, single-phase, 60 cycle.- R, two or three-! 60 cycle. T, Q, two or three-phase. 25 cycle. D. direct current. he low speeds are suitable for schools, theatres, auditoriums and other quiet running requirements. SE Ventilator For industrial installations permitting increased speeds, capacity can be Increased 100% REMEMBER--With the Hirschman F Ventilator you still have a good ventilator when the motor is not running. 872 Ventilators The Swartwout Company Swartwout Rotary Ball Bearing VeUnitUilMatWor.ws 18551 Euclid Avenue nCinlevvwellaand, Ohio , New York, N.Y., 103 Pwk Ave. B__Or_a_f_nfi_cc_eh_sI:P1(itPCtmshbiScuaBrgVgoBh,f,l1Hf1a,1.P.,, L5v4ir9uGmWr.j.nuRticBa&nU.dgo.lph St, / St. Louis, Mo., 1124 Chemical Bldg. Construction--Swartwout Rotary Ball Bearing - Ventilators 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 and forming. Bronze bearings re volving 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. PRODUCTS-- Swartwout Rotary Ball Bearing Ventilators. Erection and Opera tion--Swartwout Rotary Ball Bearing Ventilators leave the factory com pletely assembled. Swmgingjreely_wjth 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 help ful 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. Dimensions, Weights and Gauges of Swartwout Installation To insure proper in stallation and immedi ate satisfaction, com plete directions for mounting are supplied on each ventilator. . Wt. I Net I Crated [Copper.JWt.. Wt. 873 .. >