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In particular specific systems for the study and simulation of the rotating parts are used, so that to reduce the

importance of vibrations and cancel the problems that they can cause.

Then, thanks to the double spirals design, there are:

Minimum radial thrusts on the shaft

Minimum wear of the components

Thanks to these solutions the pumps have:

Low Life cyclecostsbecause of the high efficiency that allows energy economization

Low maintaining costs with limited servicing in the time

High reliability

OPERATION DATA

Temperature of the pumped liquid: max 90C (for higher temperature, please, verify).

Maximum working pressure: 10 bar.

Pump and motor labeled CE according to the rules of:

98/37/CEE Machine Directive

2006/95 CEE Low Tension Directive

2004/108 CEE Electromagnetic Compatibility Directive.

TEST AND TEST REPORT

Performance: according to UNI EN ISO 9906 Appendix A (Flow/head/Efficiency/Power/NPSH)

Vibration: according to DIN ISO 10816-3

Materials: materials certificate according to EN 10204 3.1

Hydrostatic pressure test

Noise levels according to ISO 30346

Motor: IEC 60034-1 standard.

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CONSTRUCTION FEATURES

Suction and discharge connections are located on opposite sides of the lower casing. The rotating elements

can be removed without disturbing the piping connections. When assembling, the locking of the upper part

takes places automatically. Pump feet casted as an integral part of the lower casing.

Impeller:

One piece casted impeller, with double suction.

Due to the impeller double suction design theres no axial thrust on the bearings.

Every impeller is balanced statically and dynamically. Impeller keyed to the shaft and axially fixed by two half rings: due to this solution, maintenance and

impeller dismantling are simpler than the one with threaded shaft sleeves.

Casing:

Double design volute: the radial thrust on the bearing is minimum and lower than the one with single

volute design.

High efficiency design.

Wear ring:

Double wear ring: pump fitted with casing wear ring and impeller wear ring

Shaft:

The shaft is made of stainless steel, adequately sized for the loads transmitted.

The shaft is protected through the stuffing box with stainless steel or bronze sleeve.

The sleeves are fitted with O rings with inside diameters to eliminate leakage between the shaft and

the sleeve.

Bearings:

Two heavy duty type bearings (size 6318) grease lubricated with grease flush through the bearing

housing.

The bearing bracket is carefully sealed off on both sides to prevent water or contaminants fromseeping in.

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The bearing are protected from liquid entry by means of rubber seals

Long life bearing designed for an average life of 100.000 hours, continuous running (MTBF).

Stuffing box:

Asbestos-free gland packing

Standard stuffing box packing and lantern ring are used. Stuffing box gland can be removed

completely from pump for easy packing addition and replacement.

The shaft is protected by renewable shaft protecting sleeve in the region of the stuffing box.

It is possible to modify the pump from packing to mechanical seal by replacing the gland

MATERIALS

Component Material

Casing and stuffing box Cast iron EN-GJL-250

Impeller Cast iron EN-GJL-250

Wear rings Bronze G-CuSn10 or Stainless steel

Pump shaft Stainless steel AISI 431 (1.4057)

Shaft sleeve Bronze G-CuSn10 or Stainless steel

DIMENSIONS AND WEIGHT

Flange dimensions (mm) Pump dimensions (mm)

DN1 DN2 s1 s2 a1 a2 f h h1 h2 h3 l2 l3 z

600 500 48 43 900 760 1030 1100 550 550 540 802 1832 290

Feet dimensions (mm) Shaft (mm) Weight

d2 m m1 m2 n n1 n2 n3 n4 s d1 l1 (kg)

34 180 1100 920 150 625 500 550 425 40 85 170 3300

Outlet: 20 ANSI B16.5 150 lbs Inlet: 24 ANSI B16.5 150 lbs (on request, flanges according to DIN - EN)

The dimensions of the group electro-pump will be given separately

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COMPONENTS

N. Component N. Componente

1 Pump body 19 Wear ring

2 Support for grease lubr. 20 Seal ring

3 Support screw 21 Dowel

4 Cover screw 22 Key

5 External V-ring 23 OR in two pcs

6 Shaft 24 Key

7 Locking ring nut 25 Screw8 Antiloosening ring 26 Shell

9 Bearing 27 Soft packing

10 Bearing spacer 28 Distribution ring

11 Cap 29 Shell

12 Support cover 30 Cover

13 Internal V-ring 31 Locking ring nut

14 Packing lubrication line 32 Screw

15 Cap 33 Gland

16 Support cover 34 O-ring

17 Impeller 35 Screw

18 Cap 36 Key

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PUMP PERFORMACE

CD500/550 CD500/550

Impeller diam. (mm) 550 512

Q (duty point) (m3/h) 3600 3600

H (duty point) (m) 30 23,5

(duty point) (%) 86 85

P2(duty point) (kW) 350 275

P2max (kW) 360 275

Q max (m3/h) 4300 4100

Pump

H (Q=0) (m) 41 35

Pn (kW) 400 355

Poles 6 6

rpm 1000 1000

Size 355 355

Voltage (V) 400/690 400/690

Freq. (Hz) 50 50

Frame B3 B3

Protection IP55 IP55

Insulation F F

Motor

Service S1 S1

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GIRI NOMINALI/SPEED 980 giri/min

FLUIDO DI PROVA/TEST FLUID ACQUA WATER

DENSITA' FLUIDO/FLUID DENSITY 1,000 Kg/dm3

TEMPERATURA FLUIDO/FLUID TEMP. 20 C

DIAM. MAX. GIRANTE (mm)/IMPELLER MAX. DIAM. (mm) 556

DIAM. MIN. GIRANTE (mm)/IMPELLER MIN. DIAM. (mm) 445 /

DIAM. PROPOSTO GIRANTE (mm)/IMPELLER PROPOSED DIAM. (mm) 550

DN FLANGIA DI MANDATA-ASPIRAZIONE/DN DISCHARGE-SUCTION / /

MATERIALE GIRANTE/IMPELLER MATERIAL / /MATERIALE CORPO POMPA/BOWL MATERIAL / /

TEST CONDOTTO IN ACCORDO A/TEST LEAD ACCORDING TO ISO 9906 Liv. 2

0

50

100

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

rendimento(%)

100

200

300

400

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

potenzaasse(kW)

550

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

prevalenzato

taleallaboccadimandata(m)

documento / drawing: ultima revisione / last revision :

00

data / date :

05/05/2009

compilato / drawn :

0,0

5,0

10,0

15,0

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

portata/flow (m3/h)

NP

SHrichiesto(m)

POMPA TIPO/PUMP TYPE:

CD 500/550

FAMIGLIA IDRAULICAHYDRAULIC TYPE: Nq 60

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GIRI NOMINALI/SPEED 980 giri/min

FLUIDO DI PROVA/TEST FLUID ACQUA WATER

DENSITA' FLUIDO/FLUID DENSITY 1,000 Kg/dm3

TEMPERATURA FLUIDO/FLUID TEMP. 20 C

DIAM. MAX. GIRANTE (mm)/IMPELLER MAX. DIAM. (mm) 556

DIAM. MIN. GIRANTE (mm)/IMPELLER MIN. DIAM. (mm) 445 /

DIAM. PROPOSTO GIRANTE (mm)/IMPELLER PROPOSED DIAM. (mm) 512

DN FLANGIA DI MANDATA-ASPIRAZIONE/DN DISCHARGE-SUCTION / /

MATERIALE GIRANTE/IMPELLER MATERIAL / /MATERIALE CORPO POMPA/BOWL MATERIAL / /

TEST CONDOTTO IN ACCORDO A/TEST LEAD ACCORDING TO ISO 9906 Liv. 2

0

50

100

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

rendimento(%)

100

200

300

400

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

potenzaasse(kW)

512

0

10

20

30

40

50

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

prevalenzato

taleallaboccadimandata(m)

documento / drawing: ultima revisione / last revision :

00

data / date :

05/05/09

compilato / drawn :

0,0

5,0

10,0

15,0

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000

portata/flow (m3/h)

NP

SHrichiesto(m)

POMPA TIPO/PUMP TYPE:

CD 500/550

FAMIGLIA IDRAULICAHYDRAULIC TYPE: Nq 60