3 Product description
2018/02
993203x3x-mub-en – V10
9
3.4
Ball valve with check valve
The HeatBloC is equipped with a ball valve with integrated check valve (E-2) in the flow line.
During operation, the check valve must be closed (position 0°).
For filling, draining and venting, the check valve must be opened manually. Therefore, turn the
ball valve to the position 45°.
0°
45°
90°
Check valve is operating,
flow only in flow direction.
Check valve is not operating,
flow in both directions.
Ball valve closed,
no flow.