Industrial hoses and connecting fittings.

One more important design note. Some process engineers forget to
specify the depressurizing vent in the utility stations. It is
mandatory to have depressurizing vent in utility station just before
the hose coupling in the inlet piping. After the application of the
service the operators will dismantle the hose assembly and the
contained pressure of the service in hose may cause injury and it has
to released first for safe removal, so is why the venting required, so
is for the steam also.

With regards,
Kannan.