Grundfos MS 4000, Руководство по эксплуатации продукта

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12
MS 4000
Pumped Liquids
The MS 4000 motors are available in several versions
to enable use in various liquids.
• MS 4000 is generally recommended for use in water
without chloride.
MS 4000 is made of 304 stainless steel AISI
• MS 4000 R is recommended for use in aggressive
liquids.
MS 4000 R is made of 904L stainless steel AISI
• MS 4000 RE is recommended for use in aggressive
and slightly contaminated liquids.
MS 4000 RE is made of 904L stainless steel AISI,
and the original rubber parts have been
replaced with FKM.
In cases of doubt, please make an analysis of the liquid
and contact Grundfos.
Sand Content
Max. sand content in pumped liquid: 50 ppm.
Ambient Pressure
Max. 60 bar ~ 870 psi.
It is generally not recommended to install the motor for
operation in a vacuum.
Cooling
Cooling of the motor depends on temperature and
velocity of flow of the pumped liquid past the motor. In
order to ensure sufficient cooling, the values for max.
temperature of the pumped liquid and its velocity of flow
past the motor stated in the table to the right must be
kept.
It is recommended to always install the motor in the
borehole screen.
Note: The temperature limits are based on the condi-
tion that the other operating conditions are as specified
in this Product Guide.
In case the actual temperature of the pumped liquid is
higher than the one stated in the table, or if the oper-
ating conditions are especially unfavourable, please
contact Grundfos.
Free Convection
Free convection is achieved when the diameter of the
borehole is at least 2" (~ 50 mm) bigger than the outer
diameter of the motor, or if the motor is installed in the
borehole screen.
Fig. 4
Free Convection
Velocity of Flow Past
the Motor
Max. Temperature of Pumped Liquid
Vertical
Installation
Horizontal
Installation
0.0 f/s
(Free Convection) 30°C
(86°F)
Flow sleeve
recommended
Min. 0.25 f/s
40°C
(104°F)
40°C
(105°F)
T
M
00
56
88
13
95
D
D
motor
borehole
Operating Conditions
MS Motors
MS.book Page 12 Wednesday, January 26, 2005 3:25 PM