PAW HeatBloC K38 DN 25, Installation And Operation Instruction Manual

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3 Product description
10 993x083x-mub-en – V04 2020/04
3.5 Flow check valve [specialist]
The HeatBloC
®
K38 is equipped with a check valve (D-1) in the return pipe.
The check valve can be opened. The opening pressure is 200 mm wc.
Operation
During operation, the marking must be directed to "Z".

The check valve is closed.

Flow only in the direction of the arrow.
Filling, draining, venting For filling, draining and venting the installation, the marking
must be directed to "A".

The check valve is open.

Flow in both directions