Category Archives: 50Hz Deepwell Submersible Motors

Special Maxi Kits – The DIY Borehole pump kit

The new Maxi-kit from CRI.

Ideal for small borehole installations, this kit provides you with all the basic utilities needed to prepare and equip your borehole.

Pump, motor, cable, control box, base plate, etc

The Maxi-kit is available in five different categories, each consisting of a high-speed CRI submersible pump ranging from 0.37kW to 1,10 kW motors. With a discharge outlet and outer shell made from stainless steel, this pump is guaranteed to perform in a consistent and long-lasting fashion.

Also included in this package is the Motor (corresponding with kit), 1 Ph Control Box, 50-70 meters of 1.5mm Submersible Cable, 50-70 meters Nylon Rope, Base Plate and 1¼” HDPE Adaptors.

With prices ranging from:

  • Maxi Kit 1 (0.37 Kw 8 Stage)   : R 5130.00
  • Maxi Kit 2 (0.37 Kw 6 Stage)   : R 4850.00
  • Maxi Kit 3 (0.55 Kw 8 Stage)   : R 5300.00
  • Maxi Kit 4 (0.75 Kw 12 Stage)  : R 6550.00
  • Maxi Kit 5 (1.10 Kw 12 Stage)  : R 7300.00

(Prices include 15% VAT – Prices may change due to exchange rate – Updated April 2018)

These kits are considerably more economical than a standard installation procedure.

For more information please contact one of our representatives.

R – series (Encapsulated Motors)

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[tabtext]Description[/tabtext]

[tabtext]Specifications[/tabtext]

[tabtext]Features[/tabtext]

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[tab]C.R.I.’s R – Series motors are hermetically sealed encapsulated and water lubricated type with Removable cable lead out. The stator winding are of enamelled copper wire and the wounded stator in mounted in a stainless steel shell and completely protected by a stainless steel cylinder and stator room is pre-filled with Resin. Dynamically balanced rotor of these ‘R’ series motors maintain uniform clearance there bygiving  better efficiency and increase the life cycle of the water lubricated bush bearings. Specially designed high performance thrust bearings are used that can withstand high axial thrust loads and up thrust loads with wear and tear.
Pressure equalizing rubber diaphragm is provided to guard against pressure and volume variations due to thermal expansion of water inside the motor. Motor sealing are made by means of ‘O’ rings, shaft seals and sand guard to prevent ingress of well water, sand and fibre particles in to the motor. Mounting dimension of Motors are accordance with NEMA standard.[/tab]

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Nominal Diameter4"
Power Range (kW)0.37 kW - 1.1 kW - 2 wire - 1 Ph,
0.37 kW - 1.5 kW - 3 wire - 1 Ph (with in-built TOP)
0.37 kW - 3.7 kW - 3 wire - 3 Ph
Speed2900 rpm
VersionsAC, 1 Ph, 230V & AC, 3 Ph, 380/415V
Degree of ProtectionIP 58
Direction of RotationCCW - 1 Ph CW, CCW - 3 Ph
Outer Diameter96 mm (max)
Type of dutyS1 (Continuous)
Maximum Down thrust load0.37 kW to 1.5 kW - 650 lbs/3000 N
2.2 kW to 3.7 kW - 1500 lbs/6500 N
Linear flow0.15 m / sec
Liquid temperature33°C
Starts per hour20 Times
ShaftSplined as per NEMA Standard
Mounting StandardsNEMA Standards
Method of Starting1 Ph - 2 wire - Permanent Split Capacitor (PSC)
1 Ph - 3 wire - Capacitor Start and Capacitor Run (CSCR)
3 Ph - 3 wire - Direct On Line (DOL)
Cable Lead2 & 3 wire removable type
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  • Can be easily dismantled and repaired
  • Higher power factor resulting in lesser power consumption
  • High operating efficiency
  • Extremely hardwearing water lubricated bearings
  • Specially designed thrust bearing to withstand high axial thrust loads
  • Larger shaft diameter for better power transmission
  • Corrosive resistance stainless steel body
  • Stator filled with resin for better heat dissipation

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Part Name4"
Housing ShellSS 304
Stator ShellSS 304
Shaft ExtensionSS 304
Bearing BushGraphite Carbon
Thrust BearingSS 420 / Graphite Carbon
Capacitor Chamber Thermoplastic (2wire)
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[tab]Used as prime mover to couple with deepwell submersible pumps for following applications

  • Residential
  • Irrigation
  • Fountains
  • Industrial water supply
  • Pressure boosting units
  • Gardens
  • Sprinkler Systems
  • Mining
  • Oil & Gas
  • De-watering

[/tab]  [/tabcontent] [/tabs]

Click on “Documentation” to see more specifications

[button type="icon" link="https://www.crpumps.co.za/wp-content/uploads/2012/08/Deepwell_Submersible_Motor.pdf" newwindow="yes"] Documentation[/button]

L – series (Oil Filled Rewindable Motors)

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[tabtext]Description[/tabtext]

[tabtext]Specifications[/tabtext]

[tabtext]Features[/tabtext]

[tabtext]MOC[/tabtext]

[tabtext]Applications[/tabtext]  [/tabcontainer] [tabcontent]

[tab]C.R.I.’s L – Series motors are developed with diligence complying with all safety standards and giving importance to the customers need. All the components that are in contact with water is made of AISI 304 Stainless Steel. The motor is prefilled with edible grade oil which acts as coolant as well as lubricant and heat dissipation media.
Dynamically balanced rotor of these ‘L’ series motors are equipped with quality ball bearing maintain uniform clearance thereby giving better efficiency and increase the life cycle. The shaft extension is made of 300 series Stainless Steel to avoid splines worn out.
High quality carbon / ceramic mechanic seal and oil seal made of Nitrile rubber and used to ensure better sealing system. For easy
maintenance and safe handling plug in type removable cable leads are provided. Mounting dimension of Motors are accordance with NEMA standard.[/tab]

[tab]

Nominal Diameter4" (100mm)
Power Range (Kw)0.37 kW - 1.5 kW - 1 Ph 0.37 kW – 7.5 kW - 3 Ph
Speed2900 rpm
VersionsAC, 1 Ph, 230 V
AC, 3 Ph, 380/415 V
Degree of ProtectionIP 68
Direction of RotationCCW - 1 Ph
Electrically Reversible - 3 Ph
Type of dutyS1 (Continuous)
Maximum Down thrust load0.37 kW to 1.1 kW – 3000 N
1.5 kW to 3.0 kW – 4000 N
3.7 kW to 7.5 kW - 6500 N
Linear flow0.15 m / sec
Liquid temperature33°C
Starts per hour20 Times
ShaftSplined as per NEMA Standard
Mounting StandardsNEMA Standards
Method of Starting1 Ph - Permanent Split Capacitor (PSC)
3 Ph - Direct On Line (DOL)
Cable Lead out3 wire removable type upto 2.2 kW, From
3.0 kW Permanently connected and sealed
4 core EPDM rubber flat cables.
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  • High operating efficiency and lesser power consumption
  • Extremely hared wearing ball & angular contact bearings
  • Filled with non-toxic oil
  • Can be easily dismantled repaired

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Part NameType-A / N
Housing ShellSS 304
Stator ShellSS 304
BearingsUpper : Ball Bearing Lower: Angular Contact ball bearing (Upto 3kW – 1No. & from 3.7 kW – 2 Nos.)
Shaft extension17 – 4PH
Lip seal / Oil seal Nitirle Rubber (NBR)
Mechanical SealCarbon / Ceramic
DiaphragmNitirle Rubber (NBR)
[/tab]

[tab]Used as prime mover to couple with deepwell submersible pumps for the applications of

  • Residential
  • Irrigation
  • Fountains
  • Industrial water supply
  • Pressure boosting units
  • Gardens
  • Sprinkler Systems
  • Mining
  • CBM (Coal bed methane)

[/tab]  [/tabcontent] [/tabs]

 

Click on “Documentation” to see more specifications

[button type="icon" link="https://www.crpumps.co.za/wp-content/uploads/2012/08/Deepwell_Submersible_Motor.pdf" newwindow="yes"] Documentation[/button]

W – series (Water Filled Rewindable Motors)

[tabs slidertype="left tabs"] [tabcontainer]

[tabtext]Description[/tabtext]

[tabtext]Specifications[/tabtext]

[tabtext]Features[/tabtext]

[tabtext]MOC[/tabtext]

[tabtext]Applications[/tabtext]  [/tabcontainer] [tabcontent]

[tab]C.R.I. Sumersible Motors are eco-friendly wet type, waterfilled rewindable. The stator windings are of water proof synthetic film insulated copper winding wires. It features water lubricated thrust and journal bearings. Motor is pre-filled with clear, cold, pure, fresh, filtered water. However, on request motors can be pre-filled with water and propylene glycol (Anti-freeze agent) for places where the temperature is below the freezing conditions. Dynamically balanced rotors of these ‘W’ series motors maintain uniform clearance there by giving better efficiency and increase the life cycle of the water lubricated bush bearings. Specially designed high performance thrust bearings are used that can withstand axial thrust loads and upthrust loads with minimum wear and tear. Pressure equalizing rubber diaphragm is provided to guard the pressure and volume variations of the water inside the motor. Motor sealing are made by means of ‘O’ rings, shaft seals and sand guard to avoid  ingress of well water, sand and fiber particle into the motor.Mounting dimensions are in accordance with the NEMA mounting standard.[/tab]

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Nominal Dia4"6"8"10"
Power Range (kW)0.37 to 2.2 kW-1Ph (with in-built *TOP)
0.37 to 7.5 kW - 3 Ph
2.2 to 45 kW - 3 Ph37 to 93 kW - 3 Ph81 to 185 kW -3 Ph
Speed2900 rpm 2900 rpm 2900 rpm 2900 rpm
VersionsAC, 1 Ph, 230V AC, 3 Ph, 380/415VAC, 3 Ph, 380/415VAC, 3 Ph, 380/415VAC, 3 Ph, 380/415V
Degree of ProtectionIP 58IP 58IP 58IP 58
Direction of RotationCCW - 1 Ph CCW, CW - 3 PhCCW, CW - 3 PhCCW, CW - 3 PhCCW, CW - 3 Ph
Maximum outer diameter98 mm (max)143 mm (max)194 mm (max)231 mm (max)
Type of DutyS1 (Continuous)S1 (Continuous)S1 (Continuous)S1 (Continuous)
Down Thrust Load0.37 kW to 1.1kW - 3000N
1.5 kW to 3.0 kW - 4000 N
3.7kW to 7.5 kW - 6500 N
2.2 kW to 22 kW - 15500 N

26kW to 37 kW - 27500 N
45500 N75000 N
Min. Cooling Flow along the Motor0.15 m / sec0.15 m / sec0.16 m / sec0.16 m / sec
Max.Temperature of Liquid33°C33°C33°C33°C
Starts per hour20 Times20 Times10 Times10 Times
ShaftSplined as per NEMA StandardSplined as per NEMA StandardSplined as per NEMA Standard-
Mounting StandardNEMA StandardNEMA StandardNEMA StandardNEMA Standard
Method of Starting1 Ph - CSCR 3 Ph - Direct online[DOL]DOL & Star-Delta [SD]DOL & SDDOL & SD
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[tab]

  • Water cooled rewindable motor
  • Can be easily dismantled and repaired
  • High operating efficiency
  • Extremely hardwearing water lubricated bearings
  • Specially designed thrust bearing to withstand high axial and down thrust loads
  • AISI 630 (17- 4PH) motor shaft extension for longer life

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Part NameType - A (Available Motor Dia- 4", 6", 8")Type - B (Available Motor Dia - 6", 8", 10")
Stator ShellS.S. 304S.S.304
Shaft ExtensionS.S. 304S.S.304
Thrust BearingS.S. 420 / Graphite CarbonS.S.420/Graphite Carbon
Bearing BushesGraphite CarbonGraphite Carbon
Shaft SealNitrile Rubber(NBR)Nitrile Rubber(NBR)
DiaphramNitrile Rubber(NBR)Nitrile Rubber(NBR)
[/tab]

[tab]

  • Residential
  • Irrigation
  • Fountains
  • Industrial water supply
  • Pressure boosting units
  • Gardens
  • Sprinkler Systems
  • Mining
  • Oil & Gas
  • De-watering
  • CBM (Coal bed methane)

[/tab]  [/tabcontent] [/tabs]

 

Click on “Documentation” to see more specifications

[button type="icon" link="https://www.crpumps.co.za/wp-content/uploads/2012/08/Deepwell_Submersible_Motor.pdf" newwindow="yes"] Documentation[/button]