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Speroni keringet szivatty BAk

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bomba speroni

Text of Speroni keringet szivatty BAk

  • C I R C U L A T I N G P U M PS E R I E S C R

  • Technical Characteristics.The technical data and characteristics stated in this General Catalogue are not binding. SPERONI spareserves the right to make modifications without notice. Therefore weights, dimensions, performancesand any other stated issues are indicative only and not binding. Anyway for any technical details youmust require an up-to-date product technical card.Competent Court.In case of any dispute the competent Court will be one of Reggio Emilia even if the payment is by billof exchange.

    Revisione 1 - 02/2007

    C I R C U L A T I N G P U M P 2 0 0 7

  • INDEX

    Pumping Technology 4 - 5

    SCR 6 - 7

    SCRE 8 - 9

    SCRS 10 - 11

    SCRF 40 13

    SCRF 50 14

    SCRF 65 15

    SCRF 80 16

    SCRFE 40 18

    SCRFE 50 19

    SCRFD 40 21

    SCRFD 50 22

    SCRFD 65 23

    SCRFD 80 24

    SCRFED 40 26

    SCRFED 50 27

    3

  • Production program of the SPERONI CompanyThe production program of the SPERONI Company comprises pumps of forced circulation of hotand cold operating in heating systems.

    Pumps with the rotor operating in liquidIn pumps with the rotor operating in wet conditions, the rotor is immersed in liquid andconstitutes an element of electric motor.The sleeve sealing the motor is made from high quality stainless steel and protects the stator ofthe motor against flooding by liquid. The pump shaft is made from material resistant to corrosion,featuring ceramic/graphite bearings. The pump has static sealing. Liquid forced through the pumpfulfills the following two functions: cools the pump and decreases friction in bearings.Pumps with the rotor operating in wet conditions operate without noise and do not requireexpenses to maintain them in the condition of technical efficiency. The group of pumps with therotor operating in wet conditions includes pumps with three rotational speeds, selected withthe use of U type switch as well as UE type pipes with electronic control.

    Selection of proper type of pump

    Selection of pump with three levels of rotational speedCharacteristic features of pumps have been presented in the form of characteristic curves, showingpressure H, power P and level of pump usage depending on flow Q.The data related to required flow and pressure drop in thesystem / installation are contained in the projectdocumentation. These data can be compared with technicalcharacteristics of pumps, shown in the form of charts; basedon it we select a proper pump.The calculated point R with coordinates Qr and Hr constitutesthe basis for selecting the pump. The pump having threelevels of speed has three characteristics Q-H, for every levelof revolutions (see Figure 1). This pump will operate in theactual working point D. This point constitutes the crossingbetween the curve of hydraulic resistance in installation andthe curve Q-H of a given pump.

    Selection of electronically regulated pumpsFunctioning of electronically regulated pumps has been adjusted to the requirements regardingusage of heating energy in a year. This average usage is shown on the chart Figure 2 presentingthe profile of seasonal overload.

    R calculation pointQr calculated flowHr calculated height of lifting

    Figure 1Selection of the pump

    Pump is completely used(total effectiveness coefficient)

    PROPER / GOOD

    Q-H curve of the pump

    - angle specified for every one of pumps

    Figure 2Profile of the load

    Hea

    tin

    g lo

    ad

    Number of heating days

    Ran

    ge

    of

    reg

    ula

    tio

    n t

    ype Pump operation field

    Max curve Q-H

    Curve Q-Hmin

    - angle

    Proper selection of regulated pumps has been shown on figures 3, 4 and 5. (Comparison of pumpcharacteristics, depending on the design, with actual technical characteristics of a given pump).

    4

    P U M P I N G T E C H N O L O G Y

  • Calculation point is located in theproximity of the maximal curve

    PROPER / GOOD

    Calcultion point is located far awayfrom the maximal curve. The pump isoversized.

    WRONG

    R calculation point

    Figure 6Energy savings with the use of electronic circulating pumps

    I. + II. - savings field of pressure drops

    R - calculation point, full load

    QR - full flow

    QD - partial flow

    HD=HR - required height of lifting the pump

    Z, Z , Z - work point, partial load

    Characteristic of the system with partial load

    Curve Q-H max for electronically regulated pump

    Characteristic of the system with full load

    Regulated pump}

    Viscosity of operational mediaAll hydraulic data and other data contained in the technical catalog, refer to operational mediain the form of water, having kinematic viscosity of 1 mm2/sec.When in individual pumps there are no separate data regarding operational medium, then inorder to receive normal functionality of the pump we have to guarantee such medium that isclean, has a standard of normal, liquid form of heating water (according to the requirements ofVDI 2035, specifying hardness and pH value of water), without aggressive and explosive additive,admixtures of mineral oil as well as hard and fibrous particles.Kinematic viscosity of water can amount to 10 mm2/sec.When viscosity of water is in the range between 1 and 10 mm2/sec, then addition of agentspreventing against freezing (e.g. glycol) has no significant influence on operation of the pump.

    All rights reserved as regards changes of technical characteristics of SPERONI products withoutthe necessity of prior notification as well as errors in our technical catalog.

    In regulated pumps we have at our disposal the entire operational field of a given pump, containedbetween the minimal and maximal functional curve Q-H. Therefore, this type of regulation iscalled the stepless thermal regulation. The calculation point R should be located as close as possibleto the maximal functional curve Q-H.From the figure showing the annual load, we can notice that the heating system with the fullload of thermal power, operates throughout the year only for several days. During the remainingdays the regulation system of electronic pump decreases power usage. In the case of an optimalcontrol in the system (also with the use of thermostatic valves installed on heating systems) weare able to save thanks to pumps regulating high amounts of supplied energy. These savings areshown on Figure 6.

    5

    P U M P I N G T E C H N O L O G Y

  • CIRCULATING FOR HEATING AND CONDITIONING

    ApplicationsThe threaded Speroni circulators assure the best technicaland economic performances and they are able to solve allspecific problems in every plants, thanks to their technologicalconstruction innovations.Single phase circulators are perfect for single or collectiveplants of residences, sporting building, hospitals, greenhouses,etcParticularly suitable for heating and conditioning plants, forwater circulation in heating system and sanitary warm watersystem, with water hardness less than 30F.

    Limits of application- Pressure rating 5,5 bar- Working max pressure NP 10bar- Delivery 3,5m/h- Temperature liquid up to 110 C- Recommended temperature 65 C- Continuous service

    Motor- Electric motor- Isolation class F- Protection IP 44

    Components- Pumps body in cast iron GG25- Synthetic Impeller (polymer)- Shaft in ceramics- Ball bearing in ceramics- Trust bearing- Rotor with Stainless steel housing- Winding copper wire- Gasket in EPDM

    DIMENSIONS AND WEIGHTS

    SCR 15/40-130SCR 15/60-130SCR 20/40-130SCR 25/40-130SCR 20/60-130SCR 25/60-130SCR 25/80-130SCR 32/80-130SCR 20/40-180SCR 25/40-180SCR 32/40-180SCR 20/60-180SCR 25/60-180SCR 32/60-180SCR 25/80-180SCR 32/80-180

    TYPE15152025202525322025322025322532

    1/21/23/41

    3/411

    1 1/43/41

    1 1/43/41

    1 1/41

    1 1/4

    DN D1 L1 B1 B2 H2 Kg11

    1 1/41 1/21 1/41 1/21 1/2

    21 1/41 1/2

    21 1/41 1/2

    21 1/2

    2

    D2130130130130130130130130180180180180180180180180

    84848484848484848484848484848484

    43434343434343434343434343434343

    117117117117117117117117117117117117117117117117

    2,32,32,32,32,32,32,62,62,52,52,52,52,52,52,82,8

    SCR

    H2

    D1

    L1

    D2

    B1 B2

    6

  • SCRSCR 15-20-25-32/40 SCR 15-20-25-32/60

    2

    4

    6

    8

    10

    1 2 3 4 5 6 7

    SCR 25-32/80SCR 15/40-130SCR 15/60-130

    SCR 20/40-130

    SCR 25/40-130

    SCR 20/60-130

    SCR 25/60-130

    SCR 25/80-130

    SCR 32/80-130

    SCR 20/40-180

    SCR 25/40-180

    SCR 32/40-180

    SCR 20/60-180

    SCR 25/60-180

    SCR 32/60-180

    SCR 25/80-180

    SCR 32/80-180

    Type

    15

    15

    20

    25

    20

    25

    25

    32

    20

    25

    32

    20

    25

    32

    25

    32

    DN Pos.123123123123123123123123123123123123123123123123

    P1 (W)396069396280396069396069396280396280122158172122158172396069396069396069696280396280396280122158172122158172

    1x230 V(A)(min-1)

    131517232456108013961980131517232456131517232456108013961980108013961980108013961980108013961980131517232456131517232456131517232456108013961980108013961980108013961980108013961980108013961980

    0,170,260,300,170,270,350,170,260,300,170,260,300,170,270,350,170,270,350,530,690,750,530,690,750,170,260,300,170,260,300,170,260,300,170,260,300,170,270,350,170,270,350,530,690,750,530,690,75

    Set connections circulators 1/2 SCR 15

    Set connections circulators 3/4 SCR 20

    Set connections circulators 1 SCR 25

    Set connections circulators 1 1/4 SCR 32

    ACCESSORIES

    7

  • CIRCULATING FOR HEATING AND CONDITIONINGELECTRONIC

    8

    ApplicationsThe th

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