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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
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