The inline design enables the pump to be installed in a horizontal onepipe system where the. Selection of pump connection depends on the rated pressure and pipe work. A centrifugal pump containing more than impellers is called a multistage centrifugal pump. The inline design of the pumps enables installation in a horizontal onepipe system where the suction and discharge ports are in the same horizontal level and have the same pipe dimensions. When the installed motor power is less than the required power, the pump is limited in its operating range. Its purpose is to convert energy of a prime mover a electric motor or turbine first into velocity or kinetic energy and then into pressure energy of a fluid that is being pumped. Worn pump bearings pull pump and inspect for bent shaft, straighten bent shaft, replace wear ring, remove any abrasive material, adjust impeller setting per peerless recommendations 8. The chamber stack and the outer sleeve are secured between the pump head and the base by means of staybolts. The grundfos cm and cme pumps are nonselfpriming, horizontal, multistage, endsuction centrifugal pumps.
Vertical multistage centrifugal pumps mv series are nonself priming, axial suction and delivery type available with din standard port connections. Pump the cr pump is a nonselfpriming, vertical multistage centrifugal pump. Multistage pumps xylem applied water systems united. The impellers may be mounted on the same shaft or on different shaft. Its built to withstand a variety of, mechanically aggressive and high temperature liquids, and is designed to extend uptime and help reduce lifecycle costs in a wide range of demanding applications. Split casing design allows pump to be splitted axially. Sbsbisbn vertical multistage centrifugal pumps 5 8 if it is necessary to increase the diameter of the suction pipe, place an eccentric reducer between the check valve and the flexible pipe section. The zirantec vertical multistage centrifugal pumps are non pressure gauge, pressure switch, pressure tank etc with single selfpriming with inline suction and. Edur vbu series multistage high pressure centrifugal. Centrifugal pump curves characteristics continued bhp brake horsepower and capacity for the centrifugal pump to deliver the capacity we want, we must supply the pump with a certain hp. The edur vbu highpressure vertical multistage pump is a vertical multistage pump with multiple impellers in a segmented pump design on a central shaft to increase flow and pressure. Pumps do not operate in isolation, and the key to maximum efficiency is optimising the whole system and not just the pumps. Grundfos cr 1s vertical multistage centrifugal pump end only. Sprinkler irrigation, fire fighting, water supply to high rise.
Multistage centrifugal pump can be vertical type of horizontal type. Vertical centrifugal pumps are common for the transfer of low viscosity fluids over a range of flow rates and heads. Product data cr, cri, crn, cre, crie, crne pump the cr and cre pumps are nonselfpriming, vertical multistage centrifugal pumps. A centrifugal pump containing two or more impellers is called a multistage centrifugal pump. Alignment and drive of line shaft is ensured by bush bearing located in pump casing and by the column pipe joints. Inspect the pump and fittings and report to the carrier any items which are damaged or missing. This allows rotating elements of the pump to be dismantled or fixed without disturbing suction and discharge flange connections, by just opening the casing cover. Multistage pumps are defined as pumps in which the fluid flows through several impellers fitted in series the head of a singlestage centrifugal pump is largely governed by the type of impeller and the circumferential speed.
Multistage centrifugal pump for ro water plant and boiler. If the rotational speed cannot be increased due to other operating conditions and a larger impeller diameter would lead to very low specific speeds resulting in. The cr is available in millions of different configurations through four modules. Grundfos isolutions is a holistic systems approach where intelligent technology adapts. On the pump plate sleeve sticker this required motor current can be mentioned and it can be used to preset the motor protection switch to protect the. The jv, jvi and jvn series are a nonself priming vertical multistage centrifugal pumps of inline design, flanged or with victaulic coupling, equally sized suction and discharge ports, stage construction with stainless steel. Multistage pump, multistage centrifugal pump, high pressure pump, booster pump, boiler feed water pump. Product data vertical multistage centrifugal pumps introduction this data booklet deals with cr, cri and crn as well as cre, crie and crne pumps. A centrifugal pump converts the input power to kinetic energy in the liquid by accelerating the liquid by a revolving device an impeller. Pump type 40 50 65 80 80 125 150 150 200 250 300 suc 32 40 50 65 65 100 125 125 150 200 250 del. Generally, the hp increases as we increase the capacity. Multistage high pressure pumps multistage high pressure pumps. The vertical centrifugal pump offers a wide range of flexible connections such as.
View and download grundfos cr series installation and operation manual online. The esv fabricated vertical multistage pump is an energy saving, nonpriming pump coupled to a standard premiumefficient motor. For the love of physics walter lewin may 16, 2011 duration. If we need a higher flow output we can connect impellers in. Cr vertical multistage centrifugal inline pumps grundfos.
Working mechanism of a centrifugal pump a centrifugal pump is one of the simplest pieces of equipment in any process plant. To avoid cavitation, make sure that there is a minimum pressure on. A common application of the multistage centrifugal pump is the boiler feedwater pump. For example, a 350 mw unit would require two feedpumps in parallel. Q l1 10 20 30 40 50 hp kw m3h 0,6 1,2 1,8 2,4 3 vlr 2b 302 a m vlr 2b 302 a t. Vertical multistage centrifugal pumps installation and operating instructions series. Vertical multistage centrifugal pumps gv series, standard. The pumps are available with a grundfos standard motor. Grundfos 96080937, model cr 1s8, cr 1s series, vertical. Operating pump at or below indicated levels is not recommended and can cause motor damage andor over heat.
The pumps are available with a grundfos standard motor cr pumps or a frequencycontrolled motor cre pumps. Clogged impeller or foreign material in pump disassemble pump, inspect and remove foreign material, reassemble and set impeller with correct lateral settings 9. Multistage picture gallery these are used both in conventional and nuclear energy conversion applications. Other important fields of application are seawater desalination, extraction and transport of raw, clean and service water. Tkv vertical pump tkv pumps are vertical, centrifugal multistage pumps connected to the drive generally an electric motor by flexible coupling. The impellers may be mounted on the same shaft or on different shafts. Centrifugal multi stage pumps technical information discharge flange sizes. The grundfos cr vertical, multistage, centrifugal inline pump family works for water supply, water treatment and almost any industrial solution including those for highpressure, hot, dangerous, flammable and aggressive liquids. The suction flange can be oriented left or right viewed from driving end. Multistage centrifugal pumps vertical inline models refer to pump manual 180863400 for general operating and safety instructions. Vertical multistage centrifugal pumps manufacturers.
Vlr vertical multistage centrifugal pumps pump suppliers. Now, the range has been upgraded with a new, more robust generation of cr pumps cr 95, cr 125 and cr 155. The vertical, single or multi stage centrifugal pump series are designed for pumping clean, or slightly aggressive, watery mediums. The inline design of the pumps enables installation in a horizontal onepipe system. The vbu series is a professionals choice for the pumping of clean and slightly polluted liquids the benefits of the multistage design coupled to the reliability of the edur brand allows a wide variety of. Duty point 306020022008 indication meaning dpvcf 8521 b basic pump type design version b 15 kw 12. Vertical multistage centrifugal pumps 60 hz grundfos.
Vertical multistage centrifugal pumps mv series are nonself priming, axial suction and delivery type available with din. The base has suction and discharge ports on the same level inline. Pump the cr pump is a nonselfprim ing, vertical multistage centrifugal pump. Pump material the material variant should be selected based of the liquid to be pumped. This multistage centrifugal pump is a vertical multistage centrifugal pump end only. Periodic maintenance and inspection is required on all pumps to insure proper operation. If we need higher pressure at the outlet we can connect impellers in series. All energy transferred to the fluid is derived from the mechanical energy driving the impeller. The inline design of the pumps enables installation in a horizontal onepipe system where the suction and discharge ports are in the same. The inline design enables the pump to be installed in a horizontal onepipe system where the suction and discharge ports are in the same horizontal plane and have the same pipe dimensions. The dayton inline centrifugal pumps are designed for a wide range of applications involving the transfer of liquids, circulation and pressure boosting of hot or cold clean water and any thin, nonexplosive liquids which do not contain any solid particles or. Multistage centrifugal pump working animation youtube. The vertical multistage centrifugal inline pump has been carefully inspected and packaged to assure safe delivery.
Thanks to its upright design, a vertical inline pump is ideal for applications where space is an issue as its horizontal alternative can take up to 23 times more space. Vertical inline centrifugal pumps fis fic series 50hz 6 vertical inline centrifugal pump fic fis series 50 hz model identification code general instructions performance curves are as per specific gravity and viscosity of water. The suction and discharge flange is in line position. Gdl vertical multistage centrifugal pump catalogue 19 return water pipe the pump consists of electric motor, shaft, shaft sleeve, bearing bushing, impeller, pump cover, metal coupling, motor and so on. This data booklet deals with grundfos cr, cri and crn as well as cre, crie and crne pumps. Multistage pumps 45hb70hb high pressure centrifugal booster pumps quick view. The performance curves given in the catalogue are valid for water whose density and viscosity are. All units are for use with nonflammable, nonabrasive liquids compatible with pump component materials. Vertical multistage centrifugal pumps the vlr are vertical multistage, inline, centrifugal pumps, directly connected to an electric motor.
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