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Centrifugal submersible borehole pumps ECV

  • Series description
  • Technical characteristics
  • Downloads
  • Related content
ECV, 2ECV
  • Multistage
  • Water intake
  • Water supply
  • Drainage
  • Water supply
  • Water supply
  • Clear water
  • Artesian water

Function

Electric pump unit of ECV type – is the centrifugal borehole submersible machine intended for lifting water from wells, having the total mineral content (dry residue) not more than 1500 mg/l with the hydrogen index (рН) from 6,5 to 9,5, temperature up to 298 К (25 °С), weight ratio of solid mechanical impurities not more than 0,01 %, with chloride content not more than 350 mg/l, sulfates – not more than 500 mg/l, hydrogen sulfide – not more than 1,5 mg/l.

The said pump unit may be used for industrial and agricultural water supply, irrigation and ground-water level lowering.

Pump unit is related to the items of general industrial purpose, aspect 1, repairable ones as per GOST 27.003.

Climatic version: U* GOST 15150.

Pump unit is not intended for servicing in explosion-and-fire hazardous premises.

Pump unit may be completed with electric motors of DAP or PEDV series. When the unit comes complete with PEDV series electric motor it has the following conventional designation - 2ECV.


Design

The unit consists of a centrifugal pump and an electric motor.

The pump is executed as a multistage pump. The stages are interconnected by ties of steel tape or by studs. The shaft together with the impellers and bushings make up the rotor, which is supported in rubber-metal bearings.

Electric motor - is the three-phase asynchronous motor with short-circuited rotor, submersible, with synchronous speed of 50 s-1 (3000 rpm). The electric motor is cooled with pumped water. The sense of rotor rotation: right-handed (clockwise rotation), if viewed from the pump end.

The unit may be vertically or horizontally positioned (under the agreement with Manufacturing plant). When the unit is vertically installed the loads from the pipeline to discharge nozzle are absent.

Horizontal assembly involves special supports for the unit under minimum water level (min 0,5 m). It is recommended to fit the cooling housing onto the pump as an addition. Eliminate loads from the pipeline onto the discharge nozzle. (For example, fix the pipeline on the adequate supports just near the unit).


Application

  • water-supply in complexes of water canals and housing and communal services
  • water-supply of private farms using the artesian wells water
  • in systems of irrigation of agricultural grounds where there are no land-based sources of water
  • at industrial enterprises for providing with drinking and service water
  • on heat supply facilities for providing with drinking and service water from the artesian wells
  • emergency pumping of water and liquids similar to water on viscosity from the flooded mines

Design features and benefits

For ECV:
  • consist of the asynchronous electric motor, PEDV series, with the improved cooling and multistage centrifugal pump, connected by rigid coupling
  • rubber-metal bearings provide handling water with the small content of solids (up to 0,01 % by mass)
For 2ECV:
  • consist of submersible electric motors, DAP series and submersible centrifugal multistage pumps
  • internal cavity of the electric motor is isolated from pumped water, possibility of sand ingress in bearings is excluded. Electric motor is sealed, their internal cavity is isolated from pumped liquids and therefore there is no sand ingress in bearings
  • bearings are made of modern polymeric materials and isolated internal cavity filled with water glyceric solution enable to increase operational life up to 25000 hours and provide warranty for 2years
  • developed design of DAP electric motors has allowed to provide high efficiency in each case of their application

Technical parameters

Pump models Flow (nomin.), m³/h Head, m Pump efficiency,% Current, A Voltage, V Frequency, Hz Type of current Engine power, kW
ECV 8-16-140 16 140 56 24 380 50 AC 11
ECV 8-16-160 16 160 56 24 380 50 AC 11
ECV 8-16-180 16 180 56 28 380 50 AC 16
ECV 8-16-200 16 200 56 32 380 50 AC 16
ECV 8-25-55 25 55 51 14 380 50 AC 5.5
ECV 8-25-70 25 70 54 16.5 380 50 AC 7.5
ECV 8-25-90 25 90 54 20 380 50 AC 9
ECV 8-25-100 25 100 58 24 380 50 AC 11
ECV 8-25-150 25 150 59 35 380 50 AC 16
ECV 8-25-180 25 180 59 46 380 50 AC 22
ECV 8-25-230 25 230 59 54 380 50 AC 25
ECV 8-25-300 25 300 59 66 380 50 AC 32
ECV 8-40-35 40 35 53 13.5 380 50 AC 5.5
ECV 8-40-60 40 60 54 24 380 50 AC 11
ECV 8-40-90 40 90 57 33 380 50 AC 15
ECV 8-40-110 40 110 58 37 380 50 AC 17
ECV 8-40-125 40 125 60 46 380 50 AC 20
ECV 8-40-145 40 145 58 54 380 50 AC 25
ECV 8-40-150 40 150 58 54 380 50 AC 25
ECV 8-40-180 40 180 58 63 380 50 AC 30
ECV 10-65-65 65 65 60 45 380 50 AC 18.5
ECV 10-65-100 65 100 62 66 380 50 AC 32
ECV 10-65-100 65 100 62 66 380 50 AC 32
ECV 10-65-150 65 150 62 103 380 50 AC 45
ECV 10-120-60 120 60 64 66 380 50 AC 32
ECV 10-120-80 120 80 64 85 380 50 AC 37
ECV 10-120-100 120 100 64 103 380 50 AC 45
ECV 10-160-25 160 25 57 37 380 50 AC 17
ECV 10-160-50 160 50 59 80 380 50 AC 37
ECV 10-160-75 160 75 61 103 380 50 AC 45
ECV 10-160-100 160 100 61 130 380 50 AC 63
ECV 12-160-35 160 35 58 50 380 50 AC 30
ECV 12-160-65 160 65 60 103 380 50 AC 45
ECV 12-160-100 160 100 62 130 380 50 AC 63
ECV 12-160-140 160 140 63 165 380 50 AC 90
2ECV 8-16-140 16 140 56 23 380 50 AC 11
2ECV 8-16-160 16 160 56 24 380 50 AC 11
2ECV 8-16-180 16 180 56 28 380 50 AC 16
2ECV 8-16-200 16 200 56 32 380 50 AC 16
2ECV 8-25-55 25 55 51 13 380 50 AC 5.5
2ECV 8-25-70 25 70 54 15 380 50 7.5
2ECV 8-25-90 25 90 54 19 380 50 AC 9
2ECV 8-25-100 25 100 58 23 380 50 AC 11
2ECV 8-25-125 25 125 58 28 380 50 AC 13
2ECV 8-25-150 25 150 59 32 380 50 AC 16
2ECV 8-25-180 25 180 59 41 380 50 AC 22
2ECV 8-25-230 25 230 59 50 380 50 AC 25
2ECV 8-25-300 25 300 59 64 380 50 AC 32
2ECV 8-40-60 40 60 54 23 380 50 AC 11
2ECV 8-40-90 40 90 57 31 380 50 AC 15
2ECV 8-40-110 40 110 58 35 380 50 AC 17
2ECV 8-40-125 40 125 60 44 380 50 AC 20
2ECV 8-40-145 40 145 58 50 380 50 AC 25
2ECV 8-40-150 40 150 58 52 380 50 AC 25
2ECV 8-40-180 40 180 58 61 380 50 AC 30
2ECV 10-65-65 65 65 60 40 380 50 AC 18.5
2ECV 10-65-100 65 100 62 58 380 50 AC 32
2ECV 10-65-150 65 150 62 99 380 50 AC 45
2ECV 10-120-60 120 60 64 60 380 50 AC 30
2ECV 10-120-80 120 80 64 82 380 50 AC 37
2ECV 10-120-100 120 100 64 95 380 50 AC 45
2ECV 12-160-35 160 35 58 46 380 50 AC 22
2ECV 12-160-65 160 65 60 92 380 50 AC 45
2ECV 12-160-100 160 100 62 130 380 50 AC 65
2ECV 12-160-140 160 140 63 162 380 50 AC 90

Pump type key

For example 2ECV 8-25-100 TU 26-06-1659-92, where:

  • ECV – pump unit furnished with PEDV series electric motor;
  • 2ECV – pump unit furnished with DAP series electric motor;
  • 8 – inner diameter of well casing, mm, reduced by 25 times;
  • 25 – nominal capacity, m3/h;
  • 100 – nominal head, m.

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