Vansan produces 6″ encapsulated submersible motors. Encapsulated motors are well known with cheaper cost for reparing the motors. These motors are not prefferred often as rewinding cost is cheaper than stator package cost of the motor. However, with the advantage of being the producer, Vansan balances these costs and creates a product which is preferable.

Normally, motor upper body bearing should be dissassembled to do cable connections one more time when the motor power outlet cable is damaged. This operation can be easily within a few minutes, thanks to the practical socket design used in the encapsulated motors. Moreover, there is no need for an electrical technician to perform this operation.


  • Max. voltage fluctuation: ±10%
  • Max. water temperature: 35 ºC with at least 0.16m/s of water flow speed
  • Max. motor startings per hour 20/h – D.O.L.
  • Max. immersion depth: 350 m
  • Standard mounting position: vertical and horizontal

Pra. Cable Connection

Extremely simple and very practical power cable connection to the motor body.

Thrust Bearing

Heavy duty bearings provides the option to revolve both sides, has the capacity to carry high thrust load.

Mech. Sealing System

Although mechanical seal is optionally used by other companies, it is always used by Vansan as a standard,to prevent sand and other particles to get in motors to provide long bearing life.

Bearing Collet

Chrome-plated and precisely machined bearing collets which are located in the radial bearings operating area, have great importance for bearing the rotor.

Slinger (sand guard)

Slinger helps to prevent the sand inside the water of the well entering in mechanical seal and through mechanical seal to inside of the motor.

Pressure Balancing

When the pressure drops, it filtrates the water inside well and gets it inside the motor by the help of this checkvalve to balance the pressure inside. That’s why pressure differences inside motor never causes membrane under motor to blow up.



Motor Sizes

No Part Name Material
1 Stator
1.1 Winding wire PVC – P.P
1.2 Stator package Magnetic Seal
1.3 Stator shell AISI 304
2 Rotor
2.1 Shaft sleeve St 37 (Coated CrNi)
2.2 Balance ring St 37
2.3 Copper ring Cu
3  Radial bearing Carbon
4 Upper bearing body GG20-22
5 Bushing Bronze
6 Slinger (sand guard NBR_EPDM
7 Hexagon socket cap screws Inox
8 Copper ring Cu
9 Cover seal AISI 420
10 Mechanical seal Seramic Carbon
11 Axial thrust bearing key AISI 420
12 Axial thrust bearing Carbon With Antimony
13 Retaining ring St 37
14 Tie rod Inox
15 Lower bearing body GG20-22
16 Thrust bearing support GG20-22
17 Ball holder St 37 (Coated Cr+3)
18 Thrust bearing ball Inox
19 Tilting pads AISI 420
20 O-ring NBR 70
21 Thrust bearing body GG20
22 Copper ring Cu
23 Nut Inox
24 Screw (thrust bearing base) Inox
25 Membrane NBR-EPDM
26 Membrane body GG22
27 Hexagon socket cap screws Inox
28 Check-valve Bronz
29 O-ring NBR 70
30 Cable seal NBR
31 Seal cover AISI 304
32 Nut Inox
33 Plush (r 3/8″) Bronz
34 Ball holder pins Inox

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General Features

Product Code System