Ulvac PMB100D - Water Piping

YK11-0016-DI-002-08
39
3.6 Water Piping
This pump, cooling water is required(Air-cooled type, cooling water is not required)
Connect piping to the Cooling water inlet / outlet using care not to mistake the port.
(Refer to Fig.8 ~ 12.)
MODEL
Cooling
method
Cooling water volume
Cooling water
temperature
Connections
PMB100D Air cooling
PMB300D
Water cooling 2Ｌ/min ≦ setting
5℃ - 30℃
Rc3/8
PMB600D Water cooling
2Ｌ/min ≦ setting
PMB1200D Water cooling
3Ｌ/min ≦ setting
PMB2400D Water cooling
3Ｌ/min ≦ setting
Rc1/2
CAUTION
Be sure to flow the cooling water with the volume indicated on the
Table. 2
or more. The pump temperature would rise up if the water
volume becomes less than specified particularly on high inlet
pressure operation and cause the pump failure. You are
recomm
ended to put a Flow meter for the Coolant and cause the
interlock so that the Pump stops if the cooling water flows less than
specified volume.
When the operation stopped in winter, the water piping and the
pump have a risk of breaking by freeze-up of the
water inside. Open
the cooling water outlet during operation stop and storage to
discharge the water inside by blowing in the pneumatic air through
the cooling water inlet.
CAUTION
If you use several pumps, be sure to connect the
cooling water pipes
parallel. Cooling capacity might come down if connected them serial
and cause the failure.
You should put a filter at the front stage if you are obliged to use the
water containing much impurity such like water stain, iron and the like.
An enough cooling water flow might not be able to be secured when
there is a vertical interval in piping. In such a case, cause a measure to
ensure the flow volume, such as to change the piping layout, put a larger
pipe or raise the supply pressure with
in the specification range.