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Principios de Hidráulica

Hidráulica : Descripción funcional de las bombas hidráulicas.

Una comprensión de la es necesaria antes de que los principios básicos de los diversos tipos de bombas puedan ser entendidos. La hidráulica es la rama de la física que se ocupa de las propiedades mecánicas del agua y otros líquidos, y con la aplicación de estas propiedades en la ingeniería.

Mientras la hidráulica entró en prominencia en el último medio siglo, no es una ciencia nueva. Blaise Pascal, un científico francés en el siglo XVII, desarrolló la ley fundamental de la ciencia de la hidráulica.

Pero la incapacidad para producir materiales de sellado satisfactorios, acabados mecanizados, y piezas mecanizadas limitó el crecimiento de la hidráulica antes de la primera parte del siglo XX.

Principios básicos

Como se explica en otras páginas, el agua es una sustancia verdaderamente notable. En su máxima densidad (39,1 ºF), el agua se expande cuando se aplica calor. También se expande ligeramente cuando la temperatura disminuye desde ese punto. Bajo la influencia de la temperatura y la presión, el agua puede existir como un sólido (hielo), un líquido (agua), y un gas (vapor).

La presión ejercida por un líquido sobre una superficie es proporcional al área de la superficie. La figura 1 muestra el principio hidráulico. Dos cilindros de diferentes diámetros están unidos por un tubo y se llenan de agua. Si el área M del pistón más grande, por ejemplo, es 30 veces el área de la superficie S de pistón más pequeño, y un peso de 2 libras es colocado en el pistón más pequeño, la presión se transmite al agua y al pistón más grande. Esa presión es igual a 2 libras por cada porción de la superficie del pistón más grande, que es igual en área a la suma del área de la superficie del pistón más pequeño. El pistón más grande está expuesto a una presión hacia arriba igual a 30 veces la del pistón más pequeño, o sea 60 libras. Además, si un peso 60-libras se coloca en el pistón mayor, los dos pistones permanecen en equilibrio. Este equilibrio es destruido en caso de que un mayor o un menor peso sea aplicado.

Una pequeña cantidad de agua logra equilibrar un peso mucho mayor. Como se muestra en la Figura 2, una locomotora que pesa 101.790 libras puede ser equilibrada en un elevador hidráulico contra una cantidad menor de agua, suponiendo que no hay fugas ni fricción, y que el tubo vertical que conduce al cilindro de émbolo sea excesivamente pequeño en diámetro. Por ejemplo, si el área del émbolo requiere 100 psi de presión en el émbolo para equilibrar la locomotora 101.790 libras, la carga es equilibrada cuando el tubo sea llenado de agua hasta una altura de 231 pies (100 x 2,31).

Figura 1. El principio hidráulico de que la presión ejercida por un líquido sobre una superficie es proporcional al área de la superficie.

Figura 2 El principio de que una menor cantidad de agua puede ser usada para equilibrar un peso mucho mayor.

La presión en cualquier parte de un fluido que tiene una densidad uniforme es proporcional a su profundidad por debajo de la superficie (véase la figura 3). Como se ilustra en la Figura 4, una pesa de 1 libra colocada sobre una escala, totaliza 11 libras, lo que da un peso total o  presión de 11 psi si se ubica sobre una pulgada cuadrada de superficie. Del mismo modo, una columna de agua de 1 pulgada cuadrada de sección transversal y 2,31 pies de altura pesa 1 libra (vea la Figura 4). Un manómetro colocado en la parte inferior de la columna  que sea de 4,62 pies (2,31 x 2), de altura indica una presión de 2 psi. Por lo tanto, la presión de agua a cualquier profundidad es igual a:

 

Figura 3. El principio de que la presión en cualquier porción de un líquido que tenga densidad uniforme es proporcional a su profundidad por debajo de la superficie.

Figura 4. El principio de que la presión de agua en cualquier punto por debajo la superficie es proporcional a la profundidad del punto debajo de la superficie. Se ilustra la presión en psi (izquierda), y se muestra la relación entre la presión del agua en cualquier punto por debajo de la superficie y la profundidad en pies (derecha).

Figura 5. Los fluidos suben hasta el mismo nivel en cada brazo de un tubo en U cuando la temperatura del líquido es la misma en cada brazo (izquierda), y se elevan a niveles diferentes cuando la temperatura es diferente en cada brazo (derecha).

Como se muestra en la Figura 5, los fluidos se elevan hasta el mismo nivel en cada brazo de un tubo en U cuando la temperatura del líquido es la misma en cada brazo. Sin embargo, los fluidos se elevan a niveles diferentes cuando la temperatura es diferente en cada brazo (derecha).

Las consideraciones principales en hidráulica son altura de carga y la elevación. La altura de carga es la profundidad del agua en un recipiente, tubería o conducto, que es una medida de la presión en cualquier punto debajo de la superficie. El término altura de carga (head en Inglés) indica la diferencia en el nivel de agua entre dos puntos. Por lo general se expresa en pies. Los dos tipos de alturas de carga son carga estática y carga dinámica (véase la Figura 6).

En la elevación, o altura de alzamiento, es la altura a la que la presión atmosférica fuerza o eleva al agua por encima de la elevación de su fuente de suministro. Con respecto a la operación de la bomba, la altura, medida desde la elevación de la fuente de suministro hasta el punto central de la abertura de entrada de la bomba se denomina elevación (véase la Figura 7 y Figura 8). Los dos tipos de elevación son elevación estática y elevación dinámica.

Figura 6. Altura de carga dinámica y estática.

Figura 7. Puntos correctos de medición de altura de carga y elevación.

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10 GPM Firehose Test Pump
 

10 GPM Firehose Test Pump

$5,434.88  $3,580.93

This pump is designed to safely test fire hose up to 6 inches in diameter. Four independently controlled outlets and a large 2 & 1/2" swivel inlet help to quickly fill and bleed lines for testing. Meets testing standards as set forth in the NFPA (1962. [Read more]

Store: Wayfair

Brand: Rice Hydro

1 HP Semi-Vortex Submerisble Trash Pump with Agitator
 

1 HP Semi-Vortex Submerisble Trash Pump with Agitator

$545.00  $480.37

This durable trash pump is powerful enough to get the job done and compact enough to use in almost any setting whether it be at home, in the office, or at a construction site. Combining both reliable materials as well as innovative technology this Tsu. [Read more]

Store: Wayfair

Brand: Tsurumi

8 HP Honda Engine Driven Centrifugal Pump with Low Oil Sensor
 

8 HP Honda Engine Driven Centrifugal Pump with Low Oil Sensor

$1,769.00  $1,504.00

For maximum utility at an affordable price, this Honda engine driven water pump by Tsurumi offers both power and durability.A unique addition to the Tsurumi line this pump provides extra power while maintaining the same level of quality. Both lightwei. [Read more]

Store: Wayfair

Brand: Tsurumi

3.5 GPM Firehose Test Pump with Honda Engine
 

3.5 GPM Firehose Test Pump with Honda Engine

$6,032.56  $3,671.53

This pump is designed to safely test fire hose up to 6 inches in diameter. Four independently controlled outlets and a large 2 & 1/2" swivel inlet help to quickly fill and bleed lines for testing. Meets testing standards as set forth in the NFPA (1962. [Read more]

Store: Wayfair

Brand: Rice Hydro

Hydraulic Shoring Pump with Gas
 

Hydraulic Shoring Pump with Gas

$5,345.72  $3,181.32

Lightweight and easy to maneuver, this gas powered hydraulic shoring pressure pump is capable of pressures up to 2,000 PSI, and includes a bypass relief. Features: -Gas powered hydraulic shoring pump-Compact vertical design-Made in the USA-Product. [Read more]

Store: Wayfair

Brand: Rice Hydro

137 GPM Honda Engine Driven Centrifugal Pump with Low Oil Sensor
 

137 GPM Honda Engine Driven Centrifugal Pump with Low Oil Sensor

$743.00  $632.00

Combining the power of a Honda engine with the durability of Tsurumi parts, this water pump is both reliable and affordable.A heavy duty water pump at a light weight, it utilizes high quality materials to provide a toughness allowing for increased ver. [Read more]

Store: Wayfair

Brand: Tsurumi

Tsurumi Centrifugal Pump with Low Oil Sensor
 

Tsurumi Centrifugal Pump with Low Oil Sensor

$502.00  $411.00

TE-25HA is ideal for general dewatering on small applications. Whether used to irrigate or perform all purpose cleaning, you'll be impressed by the easy starting and quiet running features. Constructed for maximum durability, our dewatering pumps are. [Read more]

Store: Wayfair

Brand: Tsurumi

5 GPM Firehose Test Pump with Briggs and Stratton
 

5 GPM Firehose Test Pump with Briggs and Stratton

$7,290.70  $4,218.40

This pump is designed to safely test fire hose up to 6 inches in diameter. Four independently controlled outlets and a large 2 & 1/2" swivel inlet help to quickly fill and bleed lines for testing. Meets testing standards as set forth in the NFPA (1962. [Read more]

Store: Wayfair

Brand: Rice Hydro

2" Trash Pump Float Switch: No Float Switch, Voltage: 110 Volts
 

2" Trash Pump Float Switch: No Float Switch, Voltage: 110 Volts

$315.00  $273.00

This durable trash pump is powerful enough to get the job done and compact enough to use in almost any setting whether it be at home, in the office, or at a construction site. With reliable and innovative materials this water pump from Tsurumi is sure. [Read more]

Store: Wayfair

Brand: Tsurumi

3 GPM Electric Firehose Test Pump
 

3 GPM Electric Firehose Test Pump

$3,911.63  $2,568.08

This pump is designed to safely test fire hose up to 6 inches in diameter. Four independently controlled outlets and a large 2 & 1/2" swivel inlet help to quickly fill and bleed lines for testing. Meets testing standards as set forth in the NFPA (1962. [Read more]

Store: Wayfair

Brand: Rice Hydro

1/2 HP Shallow Well Jet Pump
 

1/2 HP Shallow Well Jet Pump

$214.92  $185.04

Features: -Cast-iron shallow well jet pump-For wells up to 25 feet in depth-Pressure switch is pre-set at 30-50 PSI for automatic operation-Dedicated priming port for volute filling-Durable cast-iron volute-Engine HP: 1/2-Single-phase-Pumps up t. [Read more]

Store: Wayfair

Brand: Wayne

270 GPM Electric Submersible Clean Water Pump with Three-Phase Motors
 

270 GPM Electric Submersible Clean Water Pump with Three-Phase Motors

$3,128.19  $2,630.46

Features: -Electric Submersible Clean Water Pump with Three-Phase Motors-Multiquip's electric submersible pumps are the perfect tool for a wide range of dewatering applications-Mechanical seal within an oil filled chamber for positive lubrication-Re. [Read more]

Store: Wayfair

Brand: Multiquip

100 GPH PT320 Powerjet Fountain Pump Kit
 

100 GPH PT320 Powerjet Fountain Pump Kit

$79.99  $76.95

Features: -Fountain pump-Material: Plastic ceramic magnet-High performance, foam-free strainer cage technology for less maintenance-Extremely energy efficient pump-Complete kit with multiple fountain heads and hose connectors-100 GPH-Collection: . [Read more]

Store: Wayfair

Brand: Laguna Waterworks

3/4 HP Cast-Iron Convertible Well Jet Pump
 

3/4 HP Cast-Iron Convertible Well Jet Pump

$298.53  $243.87

Features: -Cast-iron convertible well jet pump-For wells up to 90 feet in depth-Pressure switch is pre-set at 30-50 PSI for automatic operation-Dedicated priming port for volute filling-Durable cast-iron volute-Engine HP: 3/4-Single-phase-Pumps. [Read more]

Store: Wayfair

Brand: Wayne

291 GPM Centrifugal Pump
 

291 GPM Centrifugal Pump

$800.00  $580.39

A simple, compact, and lightweight pump for a wide array of applications. Features: -Easy start-Very low noise-Product Type: Utility Pump-Finish: Yellow and black-Distressed: No-Material Casing: Aluminum -Material Casing Details: -Material Shaf. [Read more]

Store: Wayfair

Brand: Subaru

1/6 HP Tempest II Utility Submersible Pump
 

1/6 HP Tempest II Utility Submersible Pump

$81.09  $75.60

Features: -Submersible pump-Pumps 1248 gallons per hour-Use with ordinary garden hose or 1" pipe-For sump pumping or sump pump backup-For emptying pools and pool covers-For use with recirculating fountains-Runs in or under water-Pumps must be su. [Read more]

Store: Wayfair

Brand: Flotec

1/2 HP 2-Wire Deep Well Submersible Pump
 

1/2 HP 2-Wire Deep Well Submersible Pump

$412.50  $329.00

Features: -Deep well submersible pump-Material: Stainless steel-For wells 20 to 120 feet in depth-High efficiency, hermetically sealed motor for long life-Motor enclosure, pump shell and fasteners-Engine HP: 1/2-Single-phase-Submersible design f. [Read more]

Store: Wayfair

Brand: Wayne

4 GPM Electric Firehose Test Pump
 

4 GPM Electric Firehose Test Pump

$7,953.49  $4,997.68

This pump is designed to safely test fire hose up to 6 inches in diameter. Four independently controlled outlets and a large 2 & 1/2" swivel inlet help to quickly fill and bleed lines for testing. Meets testing standards as set forth in the NFPA (1962. [Read more]

Store: Wayfair

Brand: Rice Hydro

65 GPH Power Head TT Pump
 

65 GPH Power Head TT Pump

$68.50

The Power Head pumps feature flow control, an oil free magnetic design, are epoxy protected and have ceramic impeller shafts for long life. These reliable and quiet submersible water pumps will give you a cost-saving, energy-efficient operation. Featu. [Read more]

Store: Wayfair

Brand: Alpine

1 HP Submersible & Portable Dewatering Pump Voltage: 115V
 

1 HP Submersible & Portable Dewatering Pump Voltage: 115V

$587.00  $509.00

Its lightweight and compact design give it a sleek yet functioning characteristic that combines both power and durability with the materials used by Tsurumi. This is an ideal portable water pump for almost any situation on the residential or commercia. [Read more]

Store: Wayfair

Brand: Tsurumi

93 GPH Statuary Pump
 

93 GPH Statuary Pump

$28.73

Features: -Fountain pump-Magnetic drive-Variable flow control-For submersible use-Grounded plug-Product Type: Fountain Pump-Distressed: No-Portable: Yes. Dimensions: -Overall Height - Top to Bottom: 7.5-Overall Width - Side to Side: 4.25-Overal. [Read more]

Store: Wayfair

Brand: Danner

2550GPH Skimmer Pump 138" Shut Off
 

2550GPH Skimmer Pump 138" Shut Off

$300.99  $199.00

The Proline Skimmer pump with Hy-Drive technology is a continuous duty pump designed for use inside a pond skimmer to move large volumes of water silently and efficiently through filtration systems, a waterfall, stream or fountain. It's compact size a. [Read more]

Store: Wayfair

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500 PSI Hydrostatic Test Pump with Three Phase
 

500 PSI Hydrostatic Test Pump with Three Phase

$5,504.55  $3,207.40

This hydrostatic test pump is designed for testing small diameter water lines. It includes a Triplex plunger, and is powered by a 2.0 HP electric motor. Features: -Three phase motor-Automatic pressure regulator with inlet bypass-Made in the USA-Rug. [Read more]

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PH Submersible Water Velocity V-Pump
 

PH Submersible Water Velocity V-Pump

$72.00

Features: -Water pump-Uses no electricity-Move unwanted liquid and mud-Has no moving parts to lose, repair or replace-Capacity: 1200 Gallon-Pocket sized velocity pump and 2.5 horsepower electrical pump-Distressed: No-Engine Horsepower: 2 - 5 Hp. [Read more]

Store: Wayfair

Brand: Cpa Pool Products

10000 PSI Pneumatic Hydrostatic Test Pump
 

10000 PSI Pneumatic Hydrostatic Test Pump

$5,169.77  $2,966.34

A versatile and compact test pump can operate from 300 to 10,000 PSI, and is designed for testing in small confined spaces or remote locations. Lightweight at only 42 lbs, this unit is easy to maneuver between test sites. Manufactured with the quality. [Read more]

Store: Wayfair

Brand: Rice Hydro

145 GPM Honda GX340 High Pressure Pump
 

145 GPM Honda GX340 High Pressure Pump

$2,333.32  $2,076.57

Features: -145 GPM Honda GX - 340 High Pressure Pump-Multiquip's versatile, multipurpose high pressure centrifugal pump handles all types of clear water applications, no matter how much water needs to be moved-Is our highest volume high pressure pump. [Read more]

Store: Wayfair

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2 HP Manual Operation Cast-Iron Heavy Duty Commercial Sewage Pump
 

2 HP Manual Operation Cast-Iron Heavy Duty Commercial Sewage Pump

$983.86  $935.00

Features: -Commercial-grade cast-iron submersible sewage pump-Manual operation-Capable of handling 2-inch solids-Designed for easy installation without any plumbing changes-Easy carry ring for portability-Upper and lower ball bearings for quiet op. [Read more]

Store: Wayfair

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1083 GMP Deutz F2L2011 Trash Pump
 

1083 GMP Deutz F2L2011 Trash Pump

$17,628.19  $16,412.35

Features: -1083 GMP Deutz F2L2011 Trash Pump-Not included battery-Multiquip has been manufacturing top quality dewatering pumps for two decades-Is a solid performer for larger dewatering projects-This is the skid-mount version located in the skid. [Read more]

Store: Wayfair

Brand: Multiquip

106 GPM Honda Engine Driven High Pressure Pump
 

106 GPM Honda Engine Driven High Pressure Pump

$1,064.00  $904.00

This Tsurumi pump is specifically made for high pressure output most fully utilized for irrigation, spraying, or sprinkling. Capable of multiple discharge lines combined with power and durability this water pump is unique yet affordable. Features: -Hea. [Read more]

Store: Wayfair

Brand: Tsurumi

1/2 HP Corrosion Resistant Convertible Jet Pump
 

1/2 HP Corrosion Resistant Convertible Jet Pump

$399.55  $230.27

Features: -Pressure gauge is included-Jet pump-Can be used in shallow or deep well installation in 2" wells or larger-Ideal for shallow well applications with pumping levels to 25", and for deep well applications with pumping levels to 110"-High. [Read more]

Store: Wayfair

Brand: Flotec

Recirculating Water and Air Pump
 

Recirculating Water and Air Pump

$87.99  $75.00

Features: -Fountain pump-In line or submersible operation-Energy efficient-250 Gallons per hour-0.5" FPT inlet-0.5" MPT outlet-Product Type: Fountain Pump-Distressed: No-Power Source: Electric-Portable: Yes. Dimensions: -Overall Height - Top to. [Read more]

Store: Wayfair

Brand: Danner

1300 GPH PT330 Powerjet Fountain Pump Kit
 

1300 GPH PT330 Powerjet Fountain Pump Kit

$224.99  $164.79

Features: -Pump-Material: Plastic ceramic magnet-High performance, foam-free strainer cage technology for less maintenance-Extremely energy efficient pump-Complete kit with multiple fountain heads and hose connectors-1300 GPH-Collection: PowerJet. [Read more]

Store: Wayfair

Brand: Laguna Waterworks

3/4 HP Cast-Iron Lawn Sprinkling Pump
 

3/4 HP Cast-Iron Lawn Sprinkling Pump

$287.49  $239.00

Features: -Cast-iron lawn sprinkling pump-Material: Durable Cast-iron-Operates an underground sprinkling system using a high volume of water at low pressure-Engine HP: 3/4-Pumps up to 38.6 GPM at 5 feet (30 PSI)-Single-phase-Product Type: Fountai. [Read more]

Store: Wayfair

Brand: Wayne

Sanishower Water Pump
 

Sanishower Water Pump

$326.00  $270.58

Features: -Water pump-The Sanishower is a small gray water pump that may be used to pump waste water away from a shower, sink, bar sink or other fixture-The Sanishower is small enough to fit inside a wet bar cabinet or even beside or underneath a rai. [Read more]

Store: Wayfair

Brand: Saniflo

1/2 HP Tether Float Switch Sewage Pump
 

1/2 HP Tether Float Switch Sewage Pump

$168.88  $148.95

Features: -Cast-iron submersible sewage pump-Piggy-back tether float switch for automatic or manual operation-Capable of handling up to 2-inch solids-Designed for easy installation without any plumbing changes-Easy carry ring for portability-Lower. [Read more]

Store: Wayfair

Brand: Wayne

42 GPM Water Transfer Pump
 

42 GPM Water Transfer Pump

$222.00  $212.00

Features: -Water transfer pump-42 GPM-Built to move large volumes of water-Use these pumps to drain a pool or empty a flooded basement in no time-Product Type: Transfer Pump-Distressed: No-Material: Aluminum -Material Details: -Material Casing:. [Read more]

Store: Wayfair

Brand: Be Pressure

2500 GPH Max Flo 9000 Waterfall Pump
 

2500 GPH Max Flo 9000 Waterfall Pump

$159.99  $97.91

Features: -Includes filter grid to protect motor from large debris-Waterfall pump-2500 GPH-Can be positioned vertically or horizontally for various pond configurations-Energy efficient magnet-driven-UL approved-Maintenance free pumps-Barbed fitt. [Read more]

Store: Wayfair

Brand: algreen

42 GPM Tether Float Switch Thermoplastic Sump Pump
 

42 GPM Tether Float Switch Thermoplastic Sump Pump

$130.51  $108.00

Features: -Reinforced thermoplastic submersible sump pump-Piggy-back tether float switch for automatic or manual operation-Top suction design filters debris and prevents clogging-Designed for easy installation without any plumbing changes-Easy carr. [Read more]

Store: Wayfair

Brand: Wayne

142 GPM Honda GX - 120 Centrifugal Pump
 

142 GPM Honda GX - 120 Centrifugal Pump

$717.94  $582.42

Features: -142 GPM Honda GX - 120 Centrifugal Pump-Limited quantities-Item # QP204H-Engine Make / Model: Honda GX-120-Suction x Discharge: 2" x 2"-Max. Water Capacity: 142 gpm-Distressed: No-Power Source: Gas-Country of Manufacture: United St. [Read more]

Store: Wayfair

Brand: Multiquip

City Water Powered Emergency Back Up Sump Pump
 

City Water Powered Emergency Back Up Sump Pump

$174.99  $112.79

Features: -Includes check valve-Back up sump pump-Powered by your city water-Does not require any electricity-Compact design- fits alongside primary sump pump-Plastic construction-Made in the USA-Product Type: Sump Pump-Distressed: No-Material. [Read more]

Store: Wayfair

Brand: Flotec

1/3 HP Pedestal Sump Pump
 

1/3 HP Pedestal Sump Pump

$91.70  $86.00

Features: -Sump pump-Pumps 3600 gallons per hour-8' Grounded cord and 3 prong plug-Top screened inlet with 1.25" discharge-Non-clogging impeller-UL approved-Corrosion resistant plastic construction-Rugged cast iron construction-Heavy-duty, rugg. [Read more]

Store: Wayfair

Brand: Flotec

308.20 GPM Diesel 4" Trash Water Pump with Recoil Start
 

308.20 GPM Diesel 4" Trash Water Pump with Recoil Start

$1,476.67  $1,207.00

Features: -Water pump-Excellent fuel consumption-Recoil start-Air cooled-4 Cycle engine-Wheel kits-Product Type: Effluent or Sewage Pump-Finish: Black; Red-Distressed: No-Powder Coated Finish: No-Gloss Finish: No-Material: Aluminum -Material. [Read more]

Store: Wayfair

Brand: Amico

76.67 GPM Submersible Pump
 

76.67 GPM Submersible Pump

$327.00  $326.37

Features: -The built-in thermal protector turns off the power supply in case of overload, therefore protecting the motor-Product Type: Utility Pump-Finish: Silver-Distressed: No-Material Casing: Aluminum -Material Casing Details: -Number of Items. [Read more]

Store: Wayfair

Brand: Subaru

4 GPM High Pressure Hydrostatic Test Pump
 

4 GPM High Pressure Hydrostatic Test Pump

$5,037.21  $3,046.96

A large volume, high pressure hydrostatic pump. This model is designed for testing boilers, vessels, process piping, steam and gas lines. The ceramic plunger pump has an inner oil bath ensuring long life and increased stability. High flow mechanism qui. [Read more]

Store: Wayfair

Brand: Rice Hydro

1/4 HP Utility Pump
 

1/4 HP Utility Pump

$161.35  $140.44

Features: -Utility pump-Built in electronic water sensor automatically checks for water-Detects water at 0.75" and pumps down to 0.25"-Patented electronic monitoring allows pump to start every 2.5 minutes to check for water-Shuts off if no water is. [Read more]

Store: Wayfair

Brand: Flotec

427 GPM Water Pump
 

427 GPM Water Pump

$644.61  $458.00

Features: -Water pump-4" Intake and Outlet with back flow check valve-Durable 9 Horse Power Engine (EPA and CARB Approved)-427 Gallons per minute-Pump overhead lift-2.4 Hour run time per tank-Construction Material: stainless steel-Product Type:. [Read more]

Store: Wayfair

Brand: DuroMax

5-1/2 HP Gas Engine Pump
 

5-1/2 HP Gas Engine Pump

$483.76  $291.00

Features: -Gas engine pump-Lightweight, portable unit with rugged carrying handle-Easy portability for water transfer in remote locations-Excellent for floodwater removal when power source is out-Convenient for remote irrigation where water lines a. [Read more]

Store: Wayfair

Brand: Flotec

350 GPH Danner Pondmaster Pump with 18' Cord
 

350 GPH Danner Pondmaster Pump with 18' Cord

$118.99  $114.00

Features: -Danner pond master 350GPH pump with cord-Magnetic drive pump made to run continuously-Without seals to wear out-Pump filled with epoxy instead of oil-Collection: Pondmaster Magnetic-Drive Utility Pumps-Product Type: Pond Pump-Finish: B. [Read more]

Store: Wayfair

Brand: E G Danner

1500 PSI Manual Hydrostatic Hand Test Pump
 

1500 PSI Manual Hydrostatic Hand Test Pump

$249.12

Designed for testing small diameter water lines, in areas such as landscaping, plumbing, and residential. Unique dual check-valve system reduces water bleed-back and user fatigue. Features: -Shut off valve, and rubber grip handle-Less user fatigue, s. [Read more]

Store: Wayfair

Brand: Rice Hydro

48 GPM Tether Float Switch Thermoplastic Sump Pump
 

48 GPM Tether Float Switch Thermoplastic Sump Pump

$145.01  $124.00

Features: -Reinforced thermoplastic submersible sump pump-Piggy-back tether float switch for automatic or manual operation-Top suction design filters debris and prevents clogging-Designed for easy installation without any plumbing changes-Easy carr. [Read more]

Store: Wayfair

Brand: Wayne

65 GPM Vertical Float Switch Thermoplastic Sump Pump with Epoxy Steel Motor Case
 

65 GPM Vertical Float Switch Thermoplastic Sump Pump with Epoxy Steel Motor Case

$163.33  $133.92

Features: -Reinforced thermoplastic submersible sump pump-Vertical float switch for automatic operation-Top suction design filters debris and prevents clogging-Designed for easy installation without any plumbing changes-Float guard protects switch. [Read more]

Store: Wayfair

Brand: Wayne

500 GPH Recirculating Water and Air Pump
 

500 GPH Recirculating Water and Air Pump

$114.52  $77.50

Features: -Circulator pump-In line or submersible operation-Energy efficient-0.5" FPT inlet-0.5" MPT outlet-500 GPH-Made in the USA-Product Type: Circulator Pump-Distressed: No-Material: Plastic -Material Details: -Power Source: Electric-Sw. [Read more]

Store: Wayfair

Brand: Danner

1600 GMP Deutz F4L913 Trash Pump
 

1600 GMP Deutz F4L913 Trash Pump

$23,779.58  $23,510.00

Features: -Include a removable stainless steel wear plate and oil-filled mechanical seal and shaft bearings-Not include battery-Trash pump-Offer high performance for the most demanding jobs-90 Discharge elbow can be rotated based on job requirement. [Read more]

Store: Wayfair

Brand: Multiquip

3" Dewatering Pump
 

3" Dewatering Pump

$498.00

Features: -Collection: Powermate-Distressed: No-Powder Coated Finish: No-Gloss Finish: No-Material: Other -Material Details: Steel-Impeller Materials: Cast iron -Impeller Materials Details: -Tank Size: 0.95-Control Box Required: No -Control Bo. [Read more]

Store: Wayfair

Brand: Powermate

360 GPM Robin Engine Driven Trash Pump with Low Oil Sensor
 

360 GPM Robin Engine Driven Trash Pump with Low Oil Sensor

$1,695.00  $1,567.60

Combining both power and sleek design, this Robin engine propelled water pump is both durable and reliable. This pump provides a solution to flooding whether it be at a construction site, or in a commercial setting. Features: -Heavy-duty Robin gas engi. [Read more]

Store: Wayfair

Brand: Tsurumi

360 GPM Honda Engine Driven Trash Pump with Low Oil Sensor
 

360 GPM Honda Engine Driven Trash Pump with Low Oil Sensor

$1,854.00  $1,699.36

Whether it be at a construction site or in a commercial setting this water pump provides both the power and durability to get the job done. This Tsurumi pump combines both reliability thanks to its quality parts and performance with the help of the Hon. [Read more]

Store: Wayfair

Brand: Tsurumi

25 GPM Submersible Pump
 

25 GPM Submersible Pump

$470.00  $456.95

Features: -The built-in thermal protector turns off the power supply in case of overload, therefore protecting the motor-Product Type: Utility Pump-Finish: Black-Distressed: No-Material Casing: Aluminum -Material Casing Details: -Number of Items. [Read more]

Store: Wayfair

Brand: Subaru

2" Trash Pump - Honda GX160
 

2" Trash Pump - Honda GX160

$1,229.93  $1,107.00

Features: -Trash pump-Honda engine-Low oil shutdown-Collection: Powermate-Distressed: No-Powder Coated Finish: No-Gloss Finish: No-Material: Other -Material Details: Steel-Impeller Materials: Cast iron -Impeller Materials Details: -Tank Size. [Read more]

Store: Wayfair

Brand: Powermate

555 GPM Honda GX - 340 Trash Pump
 

555 GPM Honda GX - 340 Trash Pump

$6,366.00  $3,277.81

Features: -555 GPM Honda GX - 340 Trash Pump-Is the perfect choice for larger pumping applications-Powered by an easy start Honda engine, it is the preferred choice for dependable dewatering-Four handles on the frame means easy handling-The gasolin. [Read more]

Store: Wayfair

Brand: Multiquip

506 GPM Commercial Trash Pump
 

506 GPM Commercial Trash Pump

$1,767.96  $1,562.86

Features: -Trash pump-506 GPM-Quiet and reliable-Cast iron pump casing lined with stainless steel and long life silicon carbide mechanical seal resists corrosion, wear and heat-Product Type: Effluent or Sewage Pump-Distressed: No-Material: Cast i. [Read more]

Store: Wayfair

Brand: Be Pressure

3 GPM Electric Firehose Test Pump
 

3 GPM Electric Firehose Test Pump

$3,453.49  $2,089.37

This pump is designed to safely test fire hose up to 6 inch in diameter. Two independently controlled outlets and a large 2 & 1/2" swivel inlet help to quickly fill and bleed lines for testing. Meets testing standards as set forth in the NFPA (1962.5) . [Read more]

Store: Wayfair

Brand: Rice Hydro

1/3 HP Tether Float Switch Thermoplastic Submersible Effluent Pump
 

1/3 HP Tether Float Switch Thermoplastic Submersible Effluent Pump

$199.00  $164.00

Features: -Reinforced thermoplastic submersible effluent pump-Piggy-back tether float switch for automatic or manual operation-Capable of handling up to 0.75-inch solids-Designed for easy installation without any plumbing changes-Easy carry handle. [Read more]

Store: Wayfair

Brand: Wayne

1/10 HP Oil-Free Submersible Multi-Purpose Sump Pump
 

1/10 HP Oil-Free Submersible Multi-Purpose Sump Pump

$67.16  $58.33

Features: -Oil-free reinforced thermoplastic submersible utility pump-Corrosion-resistant reinforced thermoplastic housing, volute and impeller-Bottom suction design filters debris and removes water down to 0.13-inch of surface-Designed for a variet. [Read more]

Store: Wayfair

Brand: Wayne

1 HP, 3-Wire Stainless Steel Deep Well Submersible Pump
 

1 HP, 3-Wire Stainless Steel Deep Well Submersible Pump

$533.33  $439.76

Features: -Deep well submersible pump-Material: Stainless steel-Requires control box (not included)-For wells 20 to 300 feet in depth-High efficiency, hermetically sealed motor for long life-Motor enclosure, pump shell and fasteners-Engine HP: 1. [Read more]

Store: Wayfair

Brand: Wayne

190 GPH Danner Statuary Pump Clamshell Pack
 

190 GPH Danner Statuary Pump Clamshell Pack

$92.00

Features: -Includes an elbow for 0.38" or 0.5" I.D. tubing-Includes an 120" long cord-Statuary pump clamshell pack-190 gallons per hour pump-0.25" threaded outlet-Seven foot shut off, ceramic shaft-Grounded power cord-Made in the USA-Collection. [Read more]

Store: Wayfair

Brand: E G Danner

4/10 HP Tether Float Switch Thermoplastic Sewage Pump
 

4/10 HP Tether Float Switch Thermoplastic Sewage Pump

$252.89  $211.00

Features: -Reinforced thermoplastic submersible sewage pump-Piggy-back tether float switch for automatic or manual operation-Capable of handling up to 2-inch solids-Designed for easy installation without any plumbing changes-Easy carry handle for p. [Read more]

Store: Wayfair

Brand: Wayne

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Figura 8. Medición correcta de la elevación estática con respecto a la operación de la bomba. La elevación estática se mide desde la superficie del suministro de agua al punto central de la abertura de entrada de la bomba.

Hidrostática

La rama de la hidráulica que trata con la presión y el equilibrio del agua (en reposo) y otros líquidos es conocida como hidrostática. El agua es el líquido considerado con mas frecuencia en el estudio de los principios básicos de la hidráulica, pero otros líquidos están también incluidos.

Altura de carga estática

La altura por encima de un punto dado de una columna o cuerpo de agua en reposo (el peso de del agua que causa la presión) se denomina altura de carga estática o presión estática (static head en Inglés).

Con respecto a la operación de la bomba, la altura de carga se mide desde el punto central de la conexión de salida de la bomba (vea la Figura 7).

En la mayoría de los cálculos, es una práctica común estimar la presión por pie de la altura de carga en 0,5 psi. El valor correcto para el cálculo de la presión de agua por pie de altura de carga estática es 0,43302 psi. Este valor es preciso para una temperatura del agua a 62 ºF.

Elevación estática

La altura a la que la presión atmosférica hace que una columna de agua se eleve por encima de la fuente de suministro para restaurar el equilibrio se denomina elevación estática (vea la Figura 8). El peso de la columna de agua (1 pulgada cuadrada de área de sección transversal) requerida para restaurar el equilibrio es igual a la presión ejercida por la atmósfera (psi).

La presión de la atmósfera puede estar disponible para levantar agua desde la fuente de suministro a una bomba de elevada mediante la eliminación del aire de la entrada de la bomba (véase la figura 9). En el diagrama de la izquierda, el tubo de entrada (antes de la conexión con la bomba) presiona hacia abajo sobre la superficie del agua con la misma presión (psi) tanto por dentro como fuera de la cañería, debido a que el tubo está abierto en la parte superior.

Figura 9.  Método para hacer que la presión atmosférica esté disponible para la elevación de agua desde la fuente hasta una bomba de elevada.

Si el extremo de la tubería está conectado a una bomba que extrae el aire de la tubería para crear un vacío parcial, el agua sube a una altura A (véase figura 9) que está determinada por la presión atmosférica disponible.

Cuando el barómetro indica 30 pulgadas (76,20 centímetros) de mercurio a nivel del mar, la presión atmosférica a nivel del mar es de 14,74 psi, que es la presión atmosférica  que puede mantener o equilibrar una columna de 34,042 pies (1.037,60 centímetros) de agua, si la columna está totalmente desprovista de aire y la temperatura del agua es de 62 ºF (16,67 ºC). Por lo tanto, la presión atmosférica eleva el agua a una altura que establece el equilibrio entre el peso del agua y la presión de la atmósfera.

Cuando la temperatura del agua esta más caliente que 62 ºF (16,67 ºC), la altura a la que el agua puede ser levantada disminuye debido a la mayor presión de vapor. Una bomba de alimentación de caldera tomando agua a 153 ºF (67,22 ºC), por ejemplo, no puede producir un vacío superior a 21,78 pulgadas  (55,32 centímetros), porque el agua comienza a hervir en ese punto y llena la cámara de la bomba con vapor. Por lo tanto, la elevación teórica es:

El resultado es aproximado ya que no se hace corrección para la columna de agua de 34 pies (10,36 metros) a 62 ºF  (16,67 ºC). En 153 ºF (67,22 ºC), por supuesto, la longitud de la columna se incrementa ligeramente.

Figura 10. La elevación máxima de agua a la temperatura estándar (62 ◦ F) cuando la presión barométrica es de 30 pulgadas (izquierda) y 24 pulgadas (derecha).

La altura máxima a la que el agua a temperatura estándar (62 ºF  ó 16,67 ºC) puede ser levantada se determina por la presión barométrica. Como se muestra en la figura 10, el agua se eleva a una altura de 34,1 pies  (1.039,37 centímetros) cuando la presión barométrica es de 30 pulgadas  (76,20 centímetros), y se eleva a 27,28 pies (831,49 centímetros) cuando la presión barométrica es de 24 pulgadas (60,96 centímetros) (utilizando 0,49116 psi  y 2,30947 pies ó 70,39 centímetros a la cabeza del agua para cada psi).

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