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Vertical Submerged Pumps - Calpeda
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Vertical Submerged Pumps - Calpeda


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Construction
Vertical column sump pumps, with motor in dry installation and with pump body submerged in the liquid handled (without suc­tion line or foot valve).
Impeller - VAL:free-flow impeller (vortex or recessed impeller). - SC: open impeller.
Connection - VAL 30, SC 30, SC 50: threaded port ISO 228 (BS 2779). - VAL 65: flange with plain face oval threaded counter-flange UNI 2245, PN 2,5.
Applications
- For draining a basin or a sump with domestic or industrial sewage.
- For slightly dirty waste water, for liquids which are non-aggessive for the pump materials.
Operating conditions
Liquid temperature up to 40 °C. Ambient temperature up to 40 °C. Continuous duty.
Maximum size of solids: VAL 30 = 25 mm; VAL 65 = 50 mm;
SC 30 = 3 mm; SC 50 = 6 mm.
Motor
2-pole induction motor, 50 Hz (n = 2900 rpm).
VAL -SC: three-phase 230/400 V ± 10%.
VALM-SCM: single-phase 230 V ± 10%, with thermal protector.
Insulation class F.
Protection IP 54.
Constructed in accordance with IEC 60034.
Special features on request
- Other voltages.
- Frequency 60 Hz (as per 60 Hz data sheet).
- Protection IP 55.
- Bronze bearing bush (for liquid up to 100 °C).
- Higher or ambient temperatures.
terials
Components
VAL
SC
Pump casing
Lower bearing housing*
Cast iron GJL200 EN 1561
Cast iron GJL200 EN 1561
Impeller
Brass P-Cu Zn 40 Pb 2 UNI 5705 for VAL 30
Brass P-Cu Zn 40 Pb 2 UNI 5705
Cast iron GJL200 EN 1561 for VAL 65
Shaft
Steel C 40 UNI 7231
Bearing bush
Tecnopolymer
Shaft sleeve
Chromate bronze for VAL 65
Characteristic Curves n a 2900 rpm
5 U.S. g.p.m. 20 30 40 50 100 200 300
_I_I_I_I_I_I_I_I_I_I_I_I_LJ_I_I_I_I_I_I_I_I_L
28
U.S.
20 30 40 50
_1_1_1_1_1_1_1_
5
g.p.m.10
j_i_i_i_
100
j_1_
4 Imp. g.p.m. 10
I I I I I
4 Imp. g.p.m. 10
1 1 1 1 1
20 30 40 50
I I I I I I I
100 200
Il II
20 30 40 50
I I I I I I I
100
I I
10
H
m
13
VAL
65 651
30
h40
30
H
ft
8
10
30
h20
6
20
4
10
J-10
Q m /h
u l/min
Q 1713/11 20 l/min 50
5
10
50 70
1000
30 500
100
200
500
20
50
100
200
72.869.C
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pageCatalog pdf di En 2012-02-07-13