10. Technical data
10.1 Motor cooling requirements
10.1.1 Maximum water temperature - minimum velocity/flow past the motor
Maximum water temperature - minimum velocity/flow past the motor
Motor type
Minimum well casing or
sleeve diameter
Minimum velocity Minimum flow
Maximum temperature of the pumped liquid
Vertical installation Horizontal installation
[in (mm)] [ft/s (m/s)]
[gpm (m
3
/h)]
[°F (°C)] [°F (°C)]
MS 402 / MS 4000 4 (102) 0.00 (0.00) 0.0 (0.0) 86 (30)
Flow sleeve
recommended
*
MS 402 / MS 4000 4 (102) 0.25 (0.08) 1.2 (0.27) 104 (40) 104 (40)
MS 6000 (T40) 6 (152) 0.50 (0.15) 9 (2) 104 (40) 104 (40)
MS 6000 (T60) 6 (152) 3.30 (1.00) 30 (6.8) 140 (60) 140 (60)
MS 6000P 6 (152) 0.50 (0.15) 9 (2) 140 (60) 140 (60)
MMS 6 (T30) 6 (152) 0.15 (0.05) 13 (3) 86 (30) 86 (30)
MMS 6 (T50) 6 (152) 0.15 (0.05) 13 (3) 122 (50) 122 (50)
MMS 8000 (T30) 8 (203) 0.50 (0.15) 25 (5.7) 86 (30) 86 (30)
MMS 6 (T50) 8 (203) 0.50 (0.15) 25 (5.7) 122 (50) 122 (50)
MS 10000
(175, 200 hp)
10 (254) 0.50 (0.15) 55 (12.5) 86 (30) 86 (30)
MS 10000
(250 hp)
10 (254) 0.50 (0.15) 41 (9.3) 68 (20) 68 (20)
*
A flow inducer or flow sleeve must be used if the water enters the well above the motor or if there is insufficient water flow past the motor.
ft/s = feet per second
For MMS6, 50 hp and MMS 8000, 150 hp, the maximum
liquid temperature is 9 °F (5 °C) lower than the values
stated in the above table. For MMS10000, 250 hp,
temperature is 18 °F (10 °C) lower.
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