DOC Series Submersible Electric Pumps for clean and dirty water

DOC pumps are versatile, corrosion-resistant and compact. Three basic versions are available with 0,25 to 0,55 kW power. A DOC 7VX version with Vortex impeller is available.

Applications
• Emptying of residential sump pits, rainwater tanks or laundry drainage.
• Garden and lawn irrigation, with suction from rainwater tanks.
• Emergency draining of flooded basements and garages.
• Transfer of water from tanks, cistems and swimming pools.

Specifications
• Maximum liquid temperature: 40°C with partially submerged pump.
• Dry motor..
• Maximum immersion depth: 5 m.
• Class B insulation.
• The DOC 3 pump has a delivery of 135 l/min, head up to 7 m, and passes suspended solids up to 10 mm in diameter. Only available in single-phase version.
• The DOC 7 pump has a delivery of 225 l/min, head up to 11 m, and passes suspended solids up to 10 mm in diameter.
• The DOC 7VX pump has a delivery of 175 l/min, head up to 7 m, and can handle liquids with suspended solids up to 20 mm in diameter.
• A "shallow-suction device", that can be mounted on both the DOC3 and DOC7 models, is available on request. It ensures complete drainage of flooded floors (to 3 mm from floor).

Versions
- Single-phase: 220-240 V, 50 Hz 2 poles.
- Three-phase: 220-240 V, 50 Hz 380-415 V, 50 Hz 2 poles.
• 60 Hz and without floats (SG) models are available on request or tube float switch.
• The single-phase versions features:
Pre-assembled float for automatic pump operation (version without float available on request). Built-in capacitor. Thermal overload protection to stop pump supply in case of overheating.

LAB-LIP SEAL SYSTEM
• The electric motor is protected by three lip seals. An impeller counterblade system keeps solid particles away from the seal unit to prevent damage to the lip seals and ensure their long-lasting efficiency. A double Labyrinth and a V-ring on the shaft have also been provided.


Materials

Components Material
Pump body
Suction strainer
Head
NORYL GFN 2V
Impeller Technopolymer
External case
Internal motor casing
Lower cover
Tie-rod and screws
Double wear ring
Impeller fixing ring
Stainless steel EN 10088-1-X5CrNi18-10 (1.4301)
AISI 304
Shaft Stainless steel EN 10088-1-X12CrS13 (1.4005) - AISI 416
Elastomers NBR

Performance ( n ≈ 2900 1/min )

type Rated Power Q = Delivery
 l/min 0   25 50 75 100 125 135 175 225
 m³/h 0   1,5 3 4,5 6 7,5 8,1 10,5 13,5
kW HP H = Total head metres column of water
 DOC3   0,25 0,33 6,9 6,3 5,6 4,7 3,7 2,5 2    
 DOC7(T)   0,55 0,75 11,1 10,8 10,4 9,9 9,3 8,5 8,1 6,5 3,7
 DOC7VX(T)   0,55 0,75 7,2 6,8 6,4 6 5,5 4,8 4,5 3,1  
These performances are valid for liquids with density ρ = 1,0 kg/dm³ and kinematic viscosity ν = 1 mm²/s.

type Absorbed
Power*
Absorbed
current*
capacitor   type Absorbed
Power*
Absorbed
current*
Absorbed
current*
1 phase 220-240 V 3 phase 220-240 V 380-415 V
 kW    A    μF / 450 V    kW    A    A  
DOC 3  0,31 1,43 6,3 - - -
DOC 7  0,78 3,47 16 DOC 7T  0,79 2,82 1,63
DOC 7VX  0,66 2,96 16 DOC 7VXT  0,66 2,68 1,55
*Maximum values within operating range

Dimensions and weight

pump type Dimensions (mm) weight
 F    H    D    X*    kg  
 DOC3    DOC3 GT   245 188 155 20 4
 DOC7(T)    DOC7(T) GT   285 228 155 20 6
 DOC7VX(T)    -  310 252 175 45 6
Submersible Electric Pumps for clean and dirty water - Dimensions

Subject to change!



Die Firma Linn-Pumpen GmbH übernimmt keine Haftung für Folgeschäden, welche aus evtl. fehlerhaften Informationen resultieren.

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