Grundfos SP User Manual

32
English (US)
10. Technical data
10.1 Motor cooling requirements
10.1.1 Maximum water temperature -
minimum velocity/flow past the motor
ft/s = feet per second
* 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.
Note: 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 table. For MMS 10000, 250 hp, the temperature is 18 °F (10 °C) lower.
Maximum water temperature - minimum velocity/flow past the motor
Motor type
Minimum well
casing or
sleeve
diameter
Minimum
velocity
Minimum
flow
Maximum temperature of
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 6000C (T40) 6 (152) 0.50 (0.15) 9 (2) 104 (40) 104 (40)
MS 6000C (T60) 6 (152) 3.30 (1.00) 30 (6.8) 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)

Grundfos SP Specifications

General

Material	Stainless Steel
Pump Type	Submersible
Application	Irrigation
Motor Range	0.37 kW to 4 kW
Liquid Temperature	0 °C to 40 °C
Series	SP
Power Range	0.37 kW to 4 kW
Frequency	50 Hz, 60 Hz
Head	Up to 200 m
Discharge Size	1 inch to 4 inches