System Description; Installation - Dustcontrol TPR 35 Manuel D'instruction

System Description

Regenerative blowers
Dustcontrol's turbopumps are regenerative blowers.
TPR has two impellers that are connected for paral-
lel flow. The impellers rotate in the blower housing
through extremely low tolerances. The pump cannot
tolerate contaminated airflow. TPR compresses air
and it is therefore natural that it becomes hot while
running.
Cooling air
Turbopumps with TPR designation are parallel con-
nected two stage belt driven units. Cooling air is bled
into the pump through a vacuum relief valve which
is adjustable. The vacuum pressure in the system
is thereby maintained at a constant level even if the
airfl ow changes.
The motor and vacuum relief valve receive cooling air
from the bottom of the unit housing. The free passage
of cooling air must be ensured. As standard screen
skirts are delivered with the pump as an protecting
against leaves, papers etc.

Installation

A. Allowed pressures during installation.
B. Do not lift from this side.
C. The pump should be installed on a concrete pad. A second pump may be
mounted on the top of the fi rst pump.
Back fl ow valve
The pump is delivered standard with a back fl ow relief
valve. In multiple pump installations air will not fl ow
back through a non-operating pump.
Belt drive
The pump is belt driven. Drive ratio and motor size
determine the capacity of the pump.
If changes are to be made to performance characte-
ristic of the pump, this can be done by changing the
motor and drive ratio. Contact Dustcontrol and you will
recieve more information. Please see addresses and
phone numbers on the last page of this document.
Thermal overload protection
For protection on the pump bearings the pump has
thermal protection which will shut down the pump at
120 O C. The thermal protection has to be connected
to the control panel.
TPR 35, 11kW - 14
Art nr 9063