Transport Equipments

8/14/2019 Transport Equipments

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TRANS PO RT EQ UIPM ENTS

PRESENTED BY:

ANANYA AGARWAL

DINESHS HAS HANK DIXIT


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Cranes are a bro ad class o f co nst ruct ion equipment used t o hoist and p laceloads. Each type of crane is designed and manufactured to work economically in

a specific site situation. Const ruct ion cranes are usually t empo rary st ruct ures, either f ixed t o t heground or mounted on a purpose-built vehicle.

Cranes may either be c ont rolled from an operato r in a cab t hat t ravels with t hecrane, by a pushbutton pendant control station, or by infrared or radio control.

Where a cab oper at or is employed, workers on t he g round will co mmunicat ewit h the op erato r t hrough a syst em of st andardised hand-s ignals o r, in larg erinstallations, radio systems; an experienced crew can position loads with greatprecision using only these signals.

Choice of crane is made depending on: Purpose or nat ure of work- Handl ing ,Erect ion etc

Posit ion of work- Ground, t op o f struct ure, open yard, inside a building. Nat ure of t errain or c ondit ion. Capacit ies load t o be lif ted. Power available- elect rical, hydraulic, diesel et c. Speed o r rat e of prog ress of work needed & ease or comfort ofoperation.

CRANES


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CLASS IFICATIO N O F C RANES:

CRANES

M OBILE TOWER STATIC

M O BILE CRANES :

In wide spread p roje ct sites, mobile cranes pro vide t he best means for l ift ingand shifting of small to heavy loads.

These cr anes c an move o ver level firm surfaces as well as on ro ugh te rrains.These cranes may be mounted on crawler or wheel bases.

So me of t he mob ile-t ype machines in their basic c onfiguration can have differentfront- end o perat ing at t achments t hat allow t he unit t o be used as an excavat oror a pile driver, or in other specialized tasks.


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CLASS IFICATION O F M O BILE CRANES:

The most common mobile crane types are:

Crawler Te lescop ing-boom t ruck mounted

Lat t iceboom t r uck mounted

Ro ug h-t errain

All- t errain

Heavy lift

Gant ry

M AJO R PARTS O F A M O BILE CRANE:

Cabin

Boom

Load hook

Crawler


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CRAWLER CRANES:

These cranes spre ad t heir dead load o verlarger area through their long tracks, and as

such are useful while working in unpreparedsurfaces.

Befor e hoist ing a load t he machine must beleveled and ground settlement considered.

If soil failure o r g round- set t lement ispossible, the machine can be positioned and

leveled on mats.

To relocat e a crawler crane bet ween project srequires that it be transported by truck, rail,or barg e. As t he size o f t he c rane increases,the time and cost to dismantle, load,investigate haul routes, and reassemble the

crane also increase.


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M ost crawler c rane mode ls have a fixed -lengt h lat t iceboom. A lattice boom is cable-suspended, and thereforeact s as a co mpression member, not a bending member.

The boo m of t hese c ranes c omes in sect ions which arejoined by p in co nnect ions. The st raight boo m thus for medcan lif t loads over a radius of 3 0 t o 4 0 met res.

M achines o f IOO-t on capacit y and above are built for li ftcapability and do not have the heavier components requiredfor duty-cycle work.

The universal machines inco rporat e heavier frames, haveheavy-duty or multiple clutches and brakes, and have morepowerful swing systems.


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TELESCOPING-BOO M TRUCK-M O UNTED C RANES

There are t ruck cranes t hat have a self -contained telescoping boom.

Most o f these unit s can t rave l on t he pub lichighways between projects under their ownpower with a minimum of dismantling.

Once the crane is leve led at t he new work s it e ,it is ready to work without setup delays.

If a job requires crane ut ilizat ion for a few hoursto a couple of days, a telescoping truck craneshould be given first consideration because ofits ease o f movement and set up.

There are three common power and cont ro larrangements for telescoping-boom truck cranes:

1 . A single engine as bot h t he t ruck and c rane powersource, wit h a single, dual-po sition c ab used bot hfor d riving t he t ruck and o perat ing t he c rane.

2 . A single engine in t he carr ier but wit h both t ruckand crane operating cabs.

3 . Separat e power unit s for the t ruck and t hesuperstructure. This arrangement is standard for

the larger capacity units.


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LATTICE-BOOM TRUCK-M O UNTED C RANES

The lat t ice-bo om t ruck cr ane has a fullrevolving superstructure mounted on a multi

axle truck/carrier. The lat t ice-boo m st ruct ure is l ightweight .This r ed uct ion in bo om weight meansadditional lift capacity, as the machinepre-dominantly handles hoist load and less

weight of bo om.

The lightwe ight bo om will g ive a lessexpensive lat t ice-boo m machine t he samehoist ing capacit y as a larg er t elescop ing-boom unit.

The disadvant age of t hese units is t he t imeand effort required to disassemble them for

transport.

. In t he case of t he larg er units, it may benecessary to remove the entiresuperst ruct ure. Add it ionally, a second c rane isoften required for this task.


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ROUGH -TERRAIN CRANES

These c ranes are mount ed on t wo-axle carriers.

The op erat or's cab may be mount ed in t he uppe r

works, allowing the operator to swing with theload. However, on many models, the cab islocated on the carrier.

These units are eq uipped wit h unusually larg ewheels and closely spaced axles to improvemaneuverability at the job site.

They furt her e arn t he l ig ht t o t heir name by t heirhigh ground clearance, as well as their ability tomove on slopes of up t o 5 0 or 7 0 %, dependingon the particular make and manufacturer.

M os t unit s can t ravel on the highway but have

maximum spe ed s o f o nly about 3 0 kmph. In t hecase of long moves bet ween project s, t heyshould be transported on low-bed trailers.

M any unit s now have joyst ick cont rols. A joyst ickallows the operator to manipulate four functionssimultaneously.


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ALL-TERRAIN CRANES

The all-ter rain crane is d esigned wit h anundercarriage capable of long-distance highwaytravel. Yet the carrier has all-axle drive and all-wheel steer, crab steering, large tires, and highground clearance.

It has d ual cabs, a lower c ab for fast highwaytravel, and a superstructure cab that has bothdrive and crane control. The machine can,

therefore, be used for l imited pick-and-carry work By co mbining job- site mobilit y and t ransitcapability, this machine is appropriate whenmultiple l ifts are required at scattered projectsites or at multiple work locations on a singlepro ject .

An all-t err ain machine can be po sit ioned o n theproject without the necessity of having otherconstruction equipment prepare a smooth travelway as truck cranes would require.


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HEAVY-LIFT CRANES

These c ranes c onsist of a boo m and co unt erweight ,each mounted on independent crawlers that are

coupled by a stinger. This configuration utilizes avertical strut and inclined mast to decreasecompressive forces in the boom.

GANTRY CRANES

Gantry cr anes are most oft en found in po rt sand railroads, where they unload and movehuge containers off of ships and trains. The bases are huge cr ossbeams which run onrails, so lifted containers can be moved fromone location to another. Capac it ie s- 60 , 7 5 , 1 0 0 , 1 2 0 Tonnes.


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TO WER C RANES

Tower cranes are ext ensively used inbuilding projects, specially in high rise

construction sites where workco ncent rat ion is in a limite d area.

Tower cranes provide high lif t ing heightand good working radius.

These advant ages are achieved at t heexpense of low lifting capacity and limited

mobility, as compared to mobile cranes.

The th ree common tower c raneconfigurations are

1 . a special vert ical boom arrangement on amobile crane

2 . a mobile crane superst ruct ure mount edatop a tower or,

3 . A ver t ical t ower wit h a j ib .


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NO M ENCLATURE FO R A TO WER CRANE


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The base is bolted to a large concretepad t hat suppo rt s t he crane.

The b as e c o nne ct s t o t he tower, which

gives the tower crane its height. At t ached t o t he t op o f t he mas t is t heslewing unit - - t he gear and mot or - -t hat allows t he crane t o ro t at e.

On t op o f t he slewing unit are three

parts:1 . The long hor izont al jib (o r working arm),

which is t he p ort ion of t he c rane t hatcarries the load. A trolley runs alongthe jib to move the load in and outfrom the crane's center.

2 . The short er hor izont al machinery ar m,which contains the crane's motors andelectronics as well as the largeconcrete counter weights.

3 . The operator's cabin


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CLASS IFICATION O F TO WER CRANES

Tower cranes of vertical tower with jib type usually fall within one of two categories:

1 . Top -slewing (fixed tower) tower cranes

Have fixed t owers and a swing c irc le mount ed atthe top, allowing only the j ib, tower top, andoperator cabin to rotate.

Set t ing up and d ismant ling t op-s lewing t owercranes re quires more t ime, is more co mplicate d,

and can be a cost lier pro ced ure.

Suit able mainly for shor t er- term service of low-rise buildings

2 . Bo t t om slewing (slewing t owe r) t ower cranes

Have t he swing c irc le locat ed at t he base, and

both the tower and jib assembly rotate relativeto the base.

Bot t om-slewing t ower cranes essent ially erectthemselves using their own motors, in relativelyshort and simple procedure.

Commonly serve high-r ise buildings


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Depending upo n the nat ure o f t he pr imary t ask, t he to wer c ranes c an begrouped into following types:

1 . S tat ionery c ranes

2 . Travelling cranes

3 . Climbing cranes

S TATIO NERY CRANES

These are support ed on

foundations. Their mast is bolted t o a fixed -posit ion st eel base placed on to p o ft he foundat ions and t heir ballastcount er-weight rest s o n the base. These cranes can go up t o 1 0 0meters in height and are mostly used

for high rise buildings. The height o f t hese c ranes c an beincreased further by suitably bracingthe mast with the structure of thebuilding.


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TRAVELLING CRANES

The st eel base of t hese c ranes is mount edon travel-gear, resting on rail tracks

embed de d in t he foundat ion. This enables t he crane t o t ravel along t hetrack. The load t ravelling cr anes can be used fo rconstructing long buildings, and shiftingheavy materials like precast elements, andbat ched concret e from t he prod uct ion sit e

adjoining places or transportation areas.


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CLIM BING CRANES

These cranes are po sitioned on solid co res l ike t he l ift shaft inside a mult i st ore ybuilding. Init ially about t wo st ore y of t he building are co nst ruct ed by placing t he craneoutside the core on a selected part of the building foundation. The crane is t hen posit ioned in t he c ore by sec uring it wit h special collars,resting on the walls of the core. Thereaft er, t he c rane er ect s t he building around itself, and c limbs up when themast supported on the collars is raised by winches or hydraulic jacks. Climbing cr anes are economical and are spe cially useful where t he shor t age o f

sufficient external space around the building does not permit the erection of othertower cranes.


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S TATIC CRANESThese are also known as d err ick cranes. They are mainly of t wo t ypes :

1 . Guy Der ric k

2 . S t iff Leg Derr ick

GUY D ERRICK

This co nsist s o f a mast suppo rt ed bya number of guys. This can revolve t hrough 3 6 0 deg ree

so that revolving structure is notobstructed by the guys. The crane is operat ed by dieselengine power or by an electric motorpower. These cranes can be used up to 2 0 0

t onnes capacit y.STIFF LEG TYPE DERRICK

In t his typ e of st at ic c rane t he guy wires are rep lacedby trussed structure. This t ype of crane can lif t loads from 1 0 t o 5 0 t onnes


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CO NC RETE M IXERS

A concrete mixer (also commonlycalled a cement mixer) is a device

that homogeneously combinescement , aggregate such as sandor gravel, and water t o formconcrete.

A typical concrete mixer uses arevolving drum to mix the

components.

Smaller volume works portableco ncret e mixers are o ft en usedso t hat t he co ncret e can be madeat the construction site, givingt he workers ample t ime t o uset he co ncret e before i t hardens.

An alternative to a machine ismixing co ncret e or cement byhand.


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M IXING TIM E

Optimum length of mixing time depends ona) type of mixer

b) size / condition of mixerc) speed of rotat iond) quality of blending materials

Uniformit y o f mix increase t og et her in lengt h of mixingtime.

Long mixing times may cause some breakdown of the

aggregate.


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CONVEYORS

Conveyors are t he most co nvenient eq uipment sfor t ranspo rt of agg reg at es and met al unit s l ike

plates and billets and ores and soils overcomparatively longer distances and when change inelevations and directions are involved.

Bec ause of cont inuous movement, at relat ivelyhigher speeds, conveying capacities also will behigh

Depending o n t he mat erials t o b e co nveyed andthe distances of conveyance, different types ofco nveyors syst em have been develop ed .

ADVANTAGES

They can t ransport larg er q uant it ies .Co nveyance is po ssible o n uphil l gr ade s o f 3 0 .Co mparat ively silent and smoo t h. The movement is reversible .Low d ust nuisance.


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DISADVANTAGES

Wear and t ear mor e rapid and hence need freq uent inspe ct ion and maint enance o f beltas well as idlers. The unit cannot be easily dismantled or s hift ed . Sat isfact ory result s dep ends on the co rrect ness and care in alignment .

Different t ypes o f conveyors rol ler conveyors Belt co nveyors screw conveyors shaker conveyors chain co nveyors

PO WER REQ UIREM ENTS

The t ot al power req uired will be the sum of t he po wers req uired for moving t he empt y

belt over idlers t o move the load horizont ally t o l if t or lower t he load vert ically t o compensat e dr ive losses to operat e a t r ipper


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THE RO LLER CO NV EYO RS:

These are series of ro llers of

spec ified diamet ers and wid t h,which are kept under constantrevolutions.

Manufact ured or cast it ems suchas pipes, rod s, billet s, huge quarry

stones or boulders and blockcasting are made to slip on tothem and which get transportedover by the spindling rollers.

These are fit for it ems which donot t end t o slid side ways.

Roller c onveyor is d esigned for Easy mat erial t ranspo rt at ion inDistribution centers, warehouses, assembly lines, shipping, palletizingsyst ems, mail and parcel sort ing cent ers, mail-or de r co mpanies, et c. ,


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The conveyor belt systemconsists of a continuous moving

belt that carries materials orpackages from one place toanother. This belt ing syst em is also used inconveyor t ransport systems suchas moving sidewalks or escalators,

as well as on many manufacturingassembly lines . A conveyor belt or belt co nveyorconsist of two end pulleys and isusually suspended with a continuousloop of material that rotates aboutthem.

The Conveyor be lt sys t ems are widely used in an array of mat erial t ranspo rtapplications such as manufacturing, food processing and heavy industry. They areextensively used to transport industrial and agricultural materials such as grain,coal, ores, etc. Such systems are also used in self-unloading bulk freighters andlive bottom trucks.

BELT CONVEYOR


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SCREW CONVEYORS:

These are meant for powdery or small size materials to be pushed through or

conveyed over very small distances.

S HAKER CO NV EYO RS

These are suited for large size boulders or stony material or ores, which while underconveyance, get shed of the loose particles or dust by the shaking action. The

system consist s o f ser ies of st eel trays, t hrough or pans each of 3 t o 4 m lengt h,laid with overlaps and connected by bolts or other devices. The trays are made tomove over wheels or ro llers(1 5 t o 2 0 cm dia). These co nveyors are l imited t o about1 0 0 me t er s

CHAIN CO NVEYO RS

These are built by linking triangulated scraper chains laid on trough or plate whichroll around rollers laid at some distances. Material conveyance is possible throughst eep g radient s (1 in 3 ) up o r d own as well as o n level. Can be ad op t ed for r oughpurposes and ensures larger output, have less noise. But involve high cost andpo wer c onsumpt ion.


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HOIST

D e finit ion .

A hoist is a device used for lifting or lowering a loadby means of a drum or lift-wheel around which rope orchain wraps. It may be manually operated orelectrically driven and may use chain, fiber or wire ropeas its lifting medium. The load is attached to the hoistby means of a lifting hook.

Depending on the movability of t he Hoist it c ouldbe of t wo types:

1 )STATIC Type : I t consist of a mast or tower withthe lift platform either cantilevered from the smallsection mast or centrally suspended with guides on

either side within an enclosing tower.

2 )MO BILE Type : It has a maximum height of2 4 m.They are p os itioned on a firm level base and jacked to ensure stability.


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The basic hoist has two important characteristics to define it:

Lifting me d ium and p owe r t ype .The lifting medium is either wire rope, wrapped around a drum, orload-chain, raised by a gear-like wheel.The power type can be either electric motor or air motorBoth the wire rope hoist and chain hoist have been in common uses ince the 1 8 0 0 s . .

The various hoist ing eq uipment s generally used are:

1 ) Pulleys

2 ) Chain Hoist s

3 ) Winches

4 ) Cranes


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PULLEYS:

Used for lifting rough surfaced and heavy objects.Alloy chains andwide ropes are used for this purpose.

CHAIN HO ISTS:

They consists of two sets chains namely the hand chainand t he load chain.They can lift up t o 5 0 t onnes.

HO IST WINCH:

This is a combination of gears,clutches andbrakes.Diesel Engine or electric motor is used asprime mover.

CRANE:

A Crane is a d evice or machine used for lift ing loadsby means of rope.The use of cranes is mainly due tothe need to raise the large and heavy prefabricatedcomponents often used in modern structures.


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CO NSTRUCTIO N HO ISTS:

Also known as a Man-Lift , or co nstruct ion elevat or, t his t ype o fhoist is commonly used on large scale construction projects,such as high-rise buildings or major hospitals.The purpose being to carry personnel and materials quicklybetween the ground and higher floors, or between upper floors.The construction hoist is made up of either one or two metalliccages which t ravel vert ically along st acked mast t ower sect ions.

CHAIN O R RO PE:

For a given rated load wire rope is lighter in weight per unit length butit is l imit ed t o dr um diamet ers far larg er t han the l ift wheel over which

chain may function.

Therefore, a high-performance chain hoist may be of significantly smallerphysical size than a wire rope hoist rated at the same working load.If the wire in a wire hoist fails, it can whip and cause injury, while a chainwill simply break.


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PUMPS

A pump is a device used to move liquids or slurries.A pump moves liquids from lower pressure to higher pressure, and overcomes thisdifference in pressure by adding energy to the system.Pumps wo rk by using mec hanical forc es t o push t he mat erial, eit her by physicallylift ing, or by the force of compression.Technically, a pump is a unit used for transportation of liquids, fluids and gasesthrough pipes or similar channels.

The functionality of pumps is very simple, it consists of a suction mechanism at oneend where t he mat erial is d rawn in. Co unt er p ressure is de velop ed at t he o t herend which forces the material out.

functionality

it consists of a suction mechanismat one end where the material isdrawn in

it consists of a suction mechanismat one end where the material isdrawn in


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GLOSSARY

Capacity is t he wat er handling capabilit y o f a pump c ommonly expre ssed aseither gallons per minute (GPM) or gallons per hour (GPH).Dewatering - The removal of unwant ed wat er (clear o r d irt y) but free fromhazardous materials.Diffuser - A st at ionary housing similar t o a volut e in which t he impe ller ro t at es.Compact in de sign, it enables t he pump t o pro duce higher heads /press ures.Discharge Hose - A col lapsible hose used t o move t he wat er d ischarged fromthe pump.D rain Plugs - Removable plugs used t o d rain wat er fro m the pump d uring

periods of inactivity.Head - A measurement of p ressure t ypically expressed in feet /head or lb/in2

Impeller - A disk wit h mult iple vanes. It is at t ached t o t he pump engine ormotor and is used to create the centrifugal force necessary for moving waterthrough the pump casing.


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M e chanical S e al - A common wear part t hat forms a seal bet ween t he pumpand the engine or motor. Also prevents water from seeping into the engine ormotor .S e lf Priming - The abilit y o f a pump t o purge air fro m inside it s s yst em andcreat ing an area of low pressure t hat permit s water t o flow int o t he pumpcasing.Strainer - A fit t ing at t he end o f t he suct ion hose t hat prevent s sol ids largerthan the pump is capable of passing from entering.S uct ion Hose - A reinforc ed hose t hrough which wat er f lows int o t he suct ion

end of a pump.Volute - A st at ionary housing inside t he pump housing in which the impe llerrotates. It is used to separate air and water.Wee p Hole - A small op ening on t he und erside o f t he pump where it is jo inedto the engine. Allows quick detection of a leak before water seeps into the oilsump of the engine.


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Pumps have a vast variet y o f shapes and s izes: from very large t o very small, fromhandling gas to handling liquid, from high pressure to low pressure, and from highvolume to low volume.

APPLICATIONS

Pumps are used for a variety applications. Here is a list of a few applications: Drainage - Used t o co nt rol the level of wat er in a prot ect ed area. Sewage - Used in t he col lect ion and t reat ment o f sewage. Irr igat ion - Used t o make dry lands agriculturally pro duct ive. Chemical Indust ry - Used t o t ranspo rt f luids t o and from various sites in t he

chemical plant . Pet roleum Indust ry - Used in every phase of pet roleum pro duct ion,transportation, and refining. M ed ical Field - Used t o pump fluids in and o ut o f t he bod y. St eel Mi lls - Used t o t ransport cool ing wat er .Early applications includes the use of the windmill or watermill to pump water.Today, the pump is used for irrigation, water supply, gasoline supply, airconditioning systems, refrigeration (usually called a compressor), chemicalmovement, s ewage movement, f loo d co nt rol, marine ser vices, et c.


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CLASSIFICATION

pumps

pist on pumps cent r ifugal pumps

PISTO N PUM PS/ RECIPROCATING PUM PS/ DIAPHRAGM PUM P

t hese have a recipro cating act ion, l ike a to -and- fro or up-and- do wn mot ion.These t ypes of pumps d eliver t he fluid in a pulsating fo rm, spe cific amount of flowper stroke, revolution or cycle.

They use a pist on and cylinder arrangement with suct ion and d ischarg e valvesintegrated into the pump.

The pumps c an be po wered by air, st eam or t hrough a belt d rive from an engine

or motor . rec iprocat ing pumps are t ypically used for pumping highly viscous fluids includ ingconcrete and heavy oils or used for shallow depths and slurry water.

submersible pumps jet pumps


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When the piston moves

from it s o riginal po sit iont o t he ext reme posit ion

t he pressure inside t he

channel is dropped and asuct ion act ion t akes place

the fluid rushes from

outside t o inside

pist on is moved from it sext reme po sit ion t o t heor iginal posit ion

pressure d ifference

created

the fluid is forced out.

WORKING

Power pumps are g enerally very efficient and c an develop high press ures.

These pumps d o however te nd t o b e expensive.

A vacuum is creat ed and t he pist on/d iaphragm is moved up.

Inlet valve opens and d ischarg ed valve is sealed t o let t he wat er in. Similarly when t he diaphragm is pushed , t he inlet valve c loses and d ischarg ed valveis open.


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Inletvalve

DisChargevalve

piston

piston

This principle is used in car motors and hand pumps.


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S UBM ERSIBLE PUM P

A submersible pump is a pump which has a hermetically sealed motor close-coupled t o t he pump bod y.The whole assembly is submerged in the fluid to be pumped.The advantage of this type of pump is that it can provide a significant liftingforc e as it d oes not rely on ext ernal air p ressure t o l ift t he fluid.The power source is usually an electric motor.A system of mechanical seals are used to prevent the fluid being pumpedenter ing t he mot or and causing a short circuit.

Their compact and streamlined design makes them ideal for wells and other jobswhere space is limited.These can be used for a dept h of 8 0 1 0 0 d epending o n t he dept h of thewater table.

Submersible pumps are found in many applications, such as drainage, sewagepumping, general industrial pumping and slurry pumping, for water abstraction orin water wells.Submersible pumps are also used in oil wells.


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WORKING

The entire pump assembly including the electric motor which is watertight islowered do wn int o t he well at a certain dept h det ermined by t he t ot al dept hof your well.

The pump pushes the water up into the plumbing using a series of impellers.


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The impellers ride on top of each other separated by discs called diffusers andare connected to a central shaft which is driven by the electric motor. As waterflows through each impeller it's speed is increased and so is the pressure.

strainer

volute

impeller

Mot o r body

These are used in irrigation, small farms, multi st or ied buildings, co mmunit y wat ersupply schemes and domestic water supply.


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JET PUM PS

A Jet Pump is a type of impeller-diffuser pump that is used to draw water fromwells int o residences.It c an be used for bot h shallow (2 5 feet or less) and de ep wells (up t o about2 0 0 feet . )

WORKING


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Generally used for heights varying from 2 5 7 5 .An electric motor drives an impeller which draws air from just above the waterin the intake pipe creating a vacuumAt mosp heric pre ssure pushes t he wat er upward and int o t he p ump.

At the end of the pressure pipe the water isaccelerated through a cone-shaped nozzle at theend.

Then the water goes through a Venturi in the

Suction Pipe (the pipe on the left).The venturi has two parts: the Venturi Throat,which is the pinched section of the suction tube;and above that is the venturi itself which is thepart where the tube widens and connects to thesuct ion pipe.

The venturi speeds up the water causing apressure drop which sucks in more watert hrough t he int ake at t he very base of t he unit.The wat er go es up t he Suct ion Pipe and t hrought he impeller

Coneshapednozzle

Suctionpipe

Pressurepipe


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motor

impeller

Mechanicalseal

Vo lut e c asing

These pumps are used inresidences, buildings,industries, car washing,garages, lawn sprinklers etc.


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CENTRIFUGAL PUM PS/S ELF PRIM ING PUM PS

These pumps produce a continuous steady outflow of fluids. The pressure required for the operation is created by the centrifugal

acceleration of the impeller.The fluid flows axially t owards t he impeller, which de flec t s t he fluid, causing adirect ion change.This change in direction causes acceleration, which increases the pressure atthe outlet.The whole mechanism revolves around t he principle of c onvert ing kinet ic energy

of t he fluid int o press ure energ y.

WORKING

They consist of a rotary impeller which revolves at ahigh speed forcing t he wat er t o t he sidesOf the impeller chamber and thus sucking air out of

the suction hose.Atmospheric pressure causes the water to rise intothe pump and causing the pump operation.

impellerSuct ion hose


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motor

Suct ion and d elivery flanges

impellerMechanical seal

These t ypes of p umps are used in reside nce, hot els, hospit als, gardens, lawn

sprinklers etc.

Transport Equipments

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