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The Draga Series B is outstanding for the material out of which its electromechanical unit is manufactured, which makes it suitable for treatment of chemically aggressive liquids, colourings and seawater. Its double mechanical seal permits conveyance of fluids containing small fibres or solid bodies.
GENERAL INFORMATION ON ELECTROMECHANICAL UNIT |
Test voltage and frequency |
Single phase : 220 ÷ 240 Volt - 50 Hz
Three phase : 380 ÷ 415 Volt - 50 Hz
|
Direction of rotation |
Clockwise seen from top of the pump |
Type of impregnation |
Double impregnated humidity-resistant winding |
Type of motor winding (Single phase) |
Induction motor with dry winding and manual thermal protection |
Type of motor winding (Three phase) |
Induction motor with dry winding and manual thermal protection |
LIST OF MATERIALS / PAINTING |
Motor cable 10 meters |
H07RN-F |
Nuts and bolts |
A2 steel |
Electromechanical unit |
EN-GJL-250 cast iron |
Paint |
Ecological epoxy vinyl |
Hydraulic unit and impeller |
EN-GJL-250 cast iron |
Motor shaft |
X5CrNi18-10 (AISI304) stainless steel |
LIMITS ON USE AND APPLICABLE STANDARDS |
Max. liquid temperature |
40ºC |
Max. immersion depth |
20m |
Type of Pump
|
Absorption |
Type of pump
|
Absorption |
Power |
Poles |
R.p.m |
Outlet BSP
|
Free Passage
|
Single Phase |
A |
Three Phase |
A |
kW |
|
min |
Ø mm
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H/V |
Ø mm
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DGN 250/2M |
12,5 |
DGN 250/2T |
3,9 |
1,8 |
2 |
2900 |
65 |
? V |
45 |
- |
- |
DGN 300/2T |
5,1 |
2,2 |
2 |
2900 |
80 |
? H |
80 |
- |
- |
DGN 400/2T |
6,7 |
3 |
2 |
2900 |
80 |
? H |
80 |
- |
- |
DGN 550/2T |
8,7 |
4,1 |
2 |
2900 |
80 |
? H |
80 |
Power Range |
1.5kw to
4.1kw
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DN Outlet Range |
65mm BSP
100mm BSP
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Poles / R.p.m. |
2 / 2900
4 / 1450
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Max. Head |
18.5m |
Max. Capacity |
34,0 l/sec
122,4m ³ /h
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SPECIFICATIONS |
Upper ball bearing permanently lubricated and lower ball bearing immersed in oil |
Class H Motor Insulation |
Thermistor, capacitor and circuit breaker - standard on all single phase models |
Thermistor standard on all 3 Phase models |
2 Mechanical Seals, 1 Silicon Carbide (viton), 1 Carbon Ceramic, 1 in Oil Bath and 1 Lip seal on DGN 250/300/400 |
3 Mechanical Seals, 2 Silicon Carbide (viton) and 1 Carbon Ceramic, 2 in Oil bath on DGN 550 |
OVERALL DIMENTIONS |
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