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Model 1900B – Industrial Roof Ventilator – Belt Drive

Application

Our 1900 model is designed for general ventilation needs. Available for intake or exhaust air flow and belt driven or direct driven construction.

Features and Benefits

  • Heavy gauge continuously welded curb cap provides watertight construction.
  • Standard construction includes rugged fabricated steel propellers; non-sparking cast aluminum propellers available for hazardous locations.
  • Standard construction is belt driven but is also available in direct drive if required.
  • Can be built for supply or exhaust with special reversible propeller.
  • Fabricated aluminum weather hood with removable birdscreen. Easily opened and fully supported in place for full access to fan inside.
  • Model 1900 Lead Time:  8 weeks — add 1 week for 60″

Optional Accessories

  • Gravity, counterbalanced or motorized dampers.
  • Weatherproof non-fused disconnect switches.
  • Insulated roof curbs for flat or pitched roofs.
  • Filter box section for intake units (reduced CFM).

Model 1900 cvmin

Dimension

ModelABDEGHP
192430″54″ X 64″41 1/2″39″28″1/4-1
193036″60″ x 76″41 1/2″45″28″1/3-1 1/2
193642″72″ x 82″45 1/2″51″30″1/3-2
194248″80″ x 89″45 1/2″57″30″1/2-3
194854″87″ x 95″49 1/2″63″32″3/4-5
195460″92″ x 98″50 1/2″69″32″1-5
196066″90″ x 107″54 1/2″75″34″1-7 1/2

Performance Data

ModelFan Dia.HPRPMMotor RPMPropNo. BladesFree Air (CFM)1/8″ SP1/4″ SP3/8″ SP
1924-B-1/4241/47801725S244422228071576800
1924-B-1/2241/29801725S2445716506140432600
1924-B-3/4243/411401725S2446648614455184413
1924-B-124112501725X2446696627156004464
1930-B-1/3301/35951725S304638036171808767
1930-B-1/2301/26401725S3047170448627241373
1930-B-3/4303/47701725S3049192765751083833
1930-B-13019751725X3049959862668285184
1930-B-1 1/2301 1/211401725X304118671111296568135
1936-B-1/3361/34601725S364699237221825—
1936-B-1/2361/25301725S3648821598536422084
1936-B-3/4363/46051725S36410583856355454017
1936-B-13616651725S364119321029979135729
1936-B-1 1/2361 1/27201725X36412012957972405000
1936-B-23628701725X3641537614088119429691
1942-B-1/2421/23901725S4249352495730501642
1942-B-3/4423/44351725S42411530763348473311
1942-B-14214901725S424131941043864144668
1942-B-1 1/2421 1/25501725S424154211311799807289
1942-B-24227251725X42419128175031526411319
1942-B-34238301725X42422296209841940617290
1948-B-3/4483/43701725S48413700738942832244
1948-B-14814101725S484160781090863784037
1948-B-1 1/2481 1/24651725S4841901014991109507081
1948-B-24825201725S48421943190801553210125
1948-B-34836801725X48425683236152082016930
1948-B-54858001725X48430900292902738025000
1954-B-15414101725X5442058817500116409600
1954-B-1 1/2541 1/24501725X54422600193001278210316
1954-B-25424801725X54424312206601364211010
1954-B-35435501725X54428722258302173015420
1954-B-55456601725X54435238328433029826538
1960-B-16012801725X6041916112850——
1960-B-1 1/2601 1/23401725X6042328315624114348000
1960-B-26023901725X6042671017924131189380
1960-B-36034501725X60432356253241870515013
1960-B-56055401725X60441232358192900023237
1960-B-7 1/2607 1/26101725X60447000430004000032000

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At Ochoa Industries, we provide custom design solutions for industrial and marine applications. Our specialties include ventilation, noise control, and explosion-proof air conditioning, focusing on performance and safety.

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