DNA

Application

The DNA Series is used for sewage and waste water.  Its wide channel permits the free passage of solids rendering it particularly useful in water treatment plants, domestic, municipal and farming applications. The 4 pole version can be used in applications where continuous S1 service is needed and are characterised by their quiet operation.

Characteristic

The main components are fabricated in cast iron GG20. The Double mechanical seal in a back to back configuration located in the oil chamber guarantee long durability to the product.

Motor range 

• Squirrel cage motor in 2 and 4 pole version
• Thermal protection embedded in the winding  (In the DNA …-2/220 and DNA …-4/090 model
  the thermal protection T1 and T2 conductor to be wired to the control panel)
• Insulation class F 155°C
• Motor protection IP 68

Motor cooling

The cooling of the motor is ensured by the liquid where the pump is submerged.

Limits of use

• Max. permissible liquid temperature: 40°C with pump fully submerged
• Maximum depth of immersion: 20 mt.
• Permissible pH value: 6-10
• Hydraulic features suitable for liquids with density <1,1 kg/dm3
• Allowed voltage: 230V/400V ±5%
• Allowed frequency: 50Hz ±2%

Solids Handling
Full free passage of solids.

Relay
For the correct operating of the float switch on the three-phase version, up to 1,5 kW 2 poles. ATEX excluded.

Oil Chamber
Excellent lubrication of the mechanical seals even in the harshest pumping conditions. Inspectional oil chamber.

Dla pomp jednofazowych panel sterowani z zewnętrznym kondensatorem

Automatic coupling foot
Type: DUTY 50 Easy 3.2 or E3.1

Thread hose
connection 2”

For single phase pumps:
Control-box with external
main capacitor

Automatic coupling foot
Type: DUTY 50 Easy 3.2 or E3.1

Thread hose
connection 2”

Explosion proof control box available
on request

Automatic coupling foot
Type: DUTY 50 Easy 3.2 or Easy 3.1

Thread hose connection 2”

Explosion proof control box available on request

For single phase pumps:
Control-box with external
main capacitor

Automatic coupling foot
Type: DUTY 65

Flanged hose connection N5

Explosion proof control box available
on request

For single phase pumps:
Control-box with external
main capacitor

Automatic coupling foot
Type: DUTY 80 and B5

Flanged hose connection N2

Explosion proof control box available
on request