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

H/V

Ø mm

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

DN Outlet Range

65mm BSP
100mm BSP

Poles / R.p.m.

2 / 2900
4 / 1450

Max. Head

18.5m

Max. Capacity

34,0 l/sec
122,4m ³ /h


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
PRO-NGA
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