Sealing of the TNVD connecting unions

Removal of pipelines

1. To clean means of cold cleaning the injecting pipelines on the TNVD connecting unions.
2. To unscrew cap nuts an open cap key, for example HAZET 4560.


Not to change a curved form of pipelines.

3. To tighten connecting unions the moment of 45 N · m.
4. To tighten the injecting pipelines the moment of 25 N · m. If this way sealing is not reached, to install the new connecting union (3) and a new sealing ring (1).


Not to mix at the same time valves of pressure (2) with each other.