Grundfos MS 4000, Руководство по эксплуатации продукта

Страница: 13 / 48

13
Operating Conditions
MS Motors
MS 6000
Pumped Liquids
The MS 6000 motors are available in several versions
to enable use in various liquids.
• MS 6000 is generally recommended for use in
common groundwater.
MS 6000 is made of 304 stainless steel AISI.
• MS 6000 R is recommended for use in aggressive
liquids.
MS 6000 R is made of 904L stainless steel AISI.
• MS 6000 RE is recommended for use in aggressive
and slightly contaminated liquids.
MS 4000 RE is made of 904 stainless steel AISI,
and the rubber parts are made of 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 recommendable to install the motor
for operation in a vacuum.
If this cannot be avoided, please contact Grundfos for
guidance.
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.
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.
Fig. 5
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)
TM
00
5
6
88
13
95
D
D
motor
borehole
MS.book Page 13 Wednesday, January 26, 2005 3:25 PM