| Due to the nonreturn valves in oxygen inlet1, oxygen should always be fed in at the module fitted on the extreme left. |
| On this pipe, provide a flow adjustment valve with a nonreturn valve placed upstream of it. |
| Connect the heater and the water pump to the nonreturn valve with the water hoses. |
| It must be emphasised that the decision of the court of origin is automatically enforceable in all the Member States and not only in the Member State in which the decision of nonreturn was pronounced. |
| The nonreturn valve ensures that the oxygen can get in but cannot get out at this connection. |
| With the two safety components gas nonreturn valve and flame arrestor. |
