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Calculo de Cambio de Aire (CFM)
Use the calculator to determine the Air Exchange (CFM) required to adequately ventilate an area.Calculo de Cambio de Aire (CFM)
Utilice el calculador para determinar los cambios de aire (CFM) requeridos para ventilar el área adecuadamente.Ingresar información dentro de los campos para calcular los CFM (por ventilador).
Para calcular los CFM requeridos para ventilar un área adecuadamente, se divide el volumen de la habitación entre los valores de "Minutos por cambio" apropiados.
[CFM] = [Volumen de la habitación] / [Min./Camb.]
| Flujo de aire (CFM) por Ventilador |
* Los asteriscos indican los campos obligatorios.
Calcular Presión Estática
Use the calculator to determine the amount of static pressure the fan must overcome.Calcular Presión Estática
Utilice el calculador para determinar la cantidad de presión estática que el ventilador necesita.La presión generada por los ventiladores en los conductos es típicamente muy pequeña. Sin embargo, una medición precisa de la presión estática es crítica para la selección adecuada del ventilador. La presión estática en sistemas de ventiladores es típicamente menor que 2" SP, o 0,072 Psi.
La cantidad de presión estática que el ventilador necesita depende de la velocidad del aire en el ducto, el numero de transciciones (y otros elementos de resistencia) y la longitud del ducto. Para un sistema diseñado con suficiente aire templado, se pueden utilizar las guías de la tabla de abajo para estimar la presión estática.
| Presión Estática |
* Los asteriscos indican los campos obligatorios.
| GUÍA DE PRESIÓN ESTÁTICA | |
|---|---|
| Sin Ducto | 0.05" a 0.20" |
| Con Ducto | 0.20" a 0.40" por cada 100 pies de ducto (asumiendo que la velocidad de aire en el ducto cae dentro de los 1,000 a 1,800 pies por minuto) |
| Transiciones | 0.08" por transición (codo, registro, rejilla, compuerta, persiana, etc.) |
| Extracción de Campanas de Cocina | 0.625" a 1.50" |
| Imprtante: Los requerimientos de presión estática son afectados significativamente por la cantidad de aire templado suministrado en el área. Si el aire templado suministrado es insuficiente la presión estática aumentará y redicirá la cantidad de aire que será extraido. Es importante recordar que por cada pie cubico de aire extraido, se debe suministrar un pie cubico de aire. | |
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Demostración 15 de 214 resultados
| SKU | DRIVE TYPE | HP | VOLTAGE | PHASE | CFM RANGE | FRPM RANGE | BASE/PANEL LENGTH x WIDTH | PRICE | ||
|---|---|---|---|---|---|---|---|---|---|---|
Model / Size: GB-071 | Belt Drive | 1/4 | 115 | 1 | 205-376 | 1310-1725 | 19 x 19 in | $753.22 | ||
Model / Size: GB-071 | Belt Drive | 1/6 | 115 | 1 | 109-248 | 900-1140 | 19 x 19 in | $747.52 | ||
Model / Size: GB-081 | Belt Drive | 1/4 | 115 | 1 | 527-864 | 1290-1725 | 19 x 19 in | $753.22 | ||
Model / Size: GB-081 | Belt Drive | 1/6 | 115 | 1 | 466-836 | 1305-1670 | 19 x 19 in | $747.52 | ||
Model / Size: GB-091 | Belt Drive | 1/4 | 115 | 1 | 483-952 | 969-1256 | 19 x 19 in | $753.22 | ||
Model / Size: GB-101 | Belt Drive | 1/3 | 115 208 230 | 1 | 572-788 | 840-930 | 19 x 19 in | $786.71 | ||
Model / Size: GB-101 | Belt Drive | 1/3 | 115 208 230 | 1 | 570-983 | 930-1160 | 19 x 19 in | $786.71 | ||
Model / Size: GB-101 | Belt Drive | 1/3 | 115 208 230 | 1 | 733-1220 | 1160-1440 | 19 x 19 in | $786.71 | ||
Model / Size: GB-101 | Belt Drive | 1/3 | 115 208 230 | 1 | 793-1526 | 1440-1800 | 19 x 19 in | $786.71 | ||
Model / Size: GB-101 | Belt Drive | 1/4 | 115 | 1 | 477-610 | 700-720 | 19 x 19 in | $770.32 | ||
Model / Size: GB-101 | Belt Drive | 1/4 | 115 | 1 | 519-754 | 720-890 | 19 x 19 in | $770.32 | ||
Model / Size: GB-101 | Belt Drive | 1/4 | 115 | 1 | 663-941 | 890-1110 | 19 x 19 in | $770.32 | ||
Model / Size: GB-101 | Belt Drive | 1/4 | 115 | 1 | 782-1170 | 1110-1380 | 19 x 19 in | $770.32 | ||
Model / Size: GB-101 | Belt Drive | 1/4 | 115 | 1 | 947-1458 | 1380-1720 | 19 x 19 in | $770.32 | ||
Model / Size: GB-101 | Belt Drive | 1/4 | 115 | 1 | 634-1186 | 1093-1400 | 19 x 19 in | $777.45 |
Centrifugal Downblast Exhaust Fan, Model GB-071, Belt Drive, 1/4HP, 115V, 1Ph, 376-205 CFM
$753.22
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
Centrifugal Downblast Exhaust Fan, Model GB-071, Belt Drive, 1/6HP, 115V, 1Ph, 109-248 CFM
$747.52
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
Centrifugal Downblast Exhaust Fan, Model GB-081, Belt Drive, 1/4HP, 115V, 1Ph, 527-864 CFM
$753.22
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
Centrifugal Downblast Exhaust Fan, Model GB-081, Belt Drive, 1/6HP, 115V, 1Ph, 466-836 CFM
$747.52
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
Centrifugal Downblast Exhaust Fan, Model GB-091, Belt Drive, 1/4HP, 115V, 1Ph, 483-952 CFM
$753.22
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/3HP, 115/208-230V, 1Ph, Motor & Drives Unassembled, 572-788 CFM
$786.71
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/3HP, 115/208-230V, 1Ph, Motor & Drives Unassembled, 570-983 CFM
$786.71
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/3HP, 115/208-230V, 1Ph, Motor & Drives Unassembled, 733-1220 CFM
$786.71
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/3HP, 115/208-230V, 1Ph, Motor & Drives Unassembled, 793-1526 CFM
$786.71
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/4HP, 115V, 1Ph, Motor & Drives Unassembled, 477-610 CFM
$770.32
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/4HP, 115V, 1Ph, Motor & Drives Unassembled, 519-754 CFM
$770.32
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/4HP, 115V, 1Ph, Motor & Drives Unassembled, 663-941 CFM
$770.32
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/4HP, 115V, 1Ph, Motor & Drives Unassembled, 782-1170 CFM
$770.32
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/4HP, 115V, 1Ph, Motor & Drives Unassembled, 947-1458 CFM
$770.32
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
- Motor, pulleys and belt ship separately for field assembly
Centrifugal Downblast Exhaust Fan, Model GB-101, Belt Drive, 1/4HP, 115V, 1Ph, 634-1186 CFM
$777.45
Model GB, belt drive centrifugal roof exhaust fans are designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Units feature a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.
- Centrifugal wheel provides high-efficiency and minimal sound
- True vibration isolation supports the motor and wheel for long life and quiet operation
- One-piece aluminum curb cap provides a weather-tight fit
- Positive motor cooling with fresh air results in maximum motor life
- Galvanized birdscreen protects the fan discharge from birds and small objects
Shop Greenheck GB
Model GB is a belt drive centrifugal roof exhaust fan for general clean air applications where the air discharge is downward, toward the roof surface. The GB features a spun aluminum housing.
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Refers to the location where a fan or ventilator can be mounted.
Square base dimension on power roof ventilators. Square fan panel dimension on sidewall propeller fans.
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The power required to drive an air moving device. Horsepower required varies with system conditions.
The "ACTUAL" damper width and height. Dampers are undersized to allow them to be mounted into the duct work/wall opening.
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