4 in CBM Motors

4-Inch CBM Motors

Franklin Electric 4-inch Submersible Coalbed Methan Encapsulated Motors, manufactured in ISO 9001 certified facilities. This coalbed methane motors are built for superior dependability in 4-Inch diameteror larger coalbed methane wells. A special diaphragm ensures pressure compensation inside the motor.

For performance curves, please contact us

Specifications

  • Hermetically-sealed windings
  • Water lubricated bearings
  • Kingsbury-type thrust bearing rated for 6500N downthrust
  • Pressure equalizing diaphragm
  • Removable Water-Bloc™ lead
  • NEMA pump mounting dimensions

CBM Motor Specifications:

  • Exclusive Sand Fighter™ sealing system
  • Reinforced diaphragm housing resists damage from bottom tagging
  • Protective filter shields diaphragm from debris

Technical specification:

  • 3,7 kW - 7,5 kW
  • 4" NEMA flange
  • Voltage rating: 380-415 V/50 Hz; 380 V/60 Hz
  • Thrust capacity: 6500N
  • Rotation: electrically reversible
  • Degree of protection: IP 68
  • Insulation: Cl. B
  • Voltage tolerance: -10% / + 6% of nominal U
  • Max Rated Ambient temp.: 50 °C
  • Cooling flow: min. 8 cm/s
  • Starts / h: 20 max.
  • Mounting: vertical/horizontal
  • Motor protection: 3- phase - Select thermal overloads according to EN 60947-4-1. Trip time ≤ 10 s at 5 x IN

Options:

  • Motor Cable in special lengths available on request

4-Inch CBM Model Numbers - 50 Hz

PN
[kW]		 UN
[V]		 Digits 1-6 Digits 7-10
CBM
3,7 380 - 415 234 727 3525L
4,0 380 - 415 234 765 3525L
5,5 380 - 415 234 728 3525L
7,5 380 - 415 234 729 3525L

4-Inch CBM - 50 Hz - Performance Data

PN
[kW]		 Thrust
F[N]		 UN
[V]		 nN
[min-1]		 IN
[A]		 IA
[A]		 η(Eff.)[%]
at % load		 cos θ (Pf.)
at % load		 TN
[Nm]		 TA
[Nm]
50 75 100 50 75 100
3,7 6500N 380 2810 9,1 43,0 70,4 74,2 74,7 0,65 0,77 0,84 12,6 35,3
400 2830 9,2 45,3 68,3 73,1 74,3 0,57 0,71 0,80 12,5 35,8
415 2845 9,4 47,0 65,9 71,9 74,4 0,52 0,66 0,75 12,4 38,5
4,0 6500N 380 2820 9,7 54,1 75 78 78 0,60 0,74 0,82 13,5 39,7
400 2840 9,9 57,0 72 77 78 0,52 0,67 0,77 13,4 44,0
415 2855 10,4 59,1 69 75 77 0,47 0,61 0,72 13,4 47,4
5,5 6500N 380 2845 12,6 73,3 77 80 79 0,66 0,79 0,85 18,5 51,0
400 2865 12,6 77,2 75 79 79 0,59 0,73 0,81 18,3 56,5
415 2875 12,8 80,1 73 77 79 0,54 0,68 0,77 18,2 60,9
7,5 6500N 380 2830 17,2 94,3 78 80 79 0,66 0,79 0,86 25,3 65,9
400 2855 17,1 99,3 75 79 79 0,58 0,72 0,81 25,1 73,1
415 2865 17,6 103,0 73 78 79 0,52 0,67 0,77 25,0 78,6

4-Inch CBM Motor Lengths and Weights / Packing sizes

PN L [mm] M [kg] Motor with Lead (single pack)
[mm]
3,7 562,3 26,8 796 x 100 x 110
4,0 585,3 - 796 x 100 x 110
5,5 687,1 33,6 796 x 100 x 110
7,5 765,1 36,3 796 x 100 x 110

Material DIN / AISI

Part  
Shell 1.4301
Upper end bell 1.4401
Lower end bell Cast iron
Thrust housing 1.4401
Mechanical seal SiC / SiC
Seal cover Sintered Bronze
Slinger Viton
Shaft end 17-4 SS
Diaphragm Viton
Lead Flexipur
Other seals BUNA N
Part Number
310 313 502C