Operation; Circulation Pump; Bypass And Gravity Brake; Ball Valves - Tuxhorn tubra-PGM-S DN 20 Instructions De Montage Et D'utilisation

5 O p e r a t i o n
5.1

Circulation pump

Observe the operating manual of the circulation pump.
5.2

Bypass and gravity brake

Operating position
5.3

Ball valves

Art.-Nr. 968.20.27.00
Last updated 2022/02/28
Maintenance position
The ball valves are open.
The key areas are vertical.
To open the ball valve, it must be turned in the
"on" position by turning the spindle 90 ° counter-
clockwise with a 12 mm open-end wrench.
The ball valves are closed.
The key areas are horizontal.
To close the ball valve, it must be set to the "off"
position. To do this, the spindle must be turned
90 ° clockwise with a 12 mm open-end wrench.
- 13 -
The gravity brake [9] is put into operation in a
diagonal position.
The gravity brake can be vented for service
and maintenance work.
To vent the gravity brake, turn the adjusting
screw to the flow direction.
When the service work is complete, turn all
the adjusting screws back to the operating
position.
GB