Install with active Internet - Mailing list pgadmin-support

Greetings,

I have been looking everywhere I can think of to find an off-line procedure to install pgadmin4 for CentOS 7/RHEL 7.
Myuse is on a System that for security reasons is isolated from the Internet. 

Is there help for me.  I would love to get away from administrating our PostgreSQL v10 with the Windows 10 pgadmin4
(whichis available as a single file install package) 

I can create a CD/DVD with all of the files and have our security scan and approve use but this is the only way to
bringsoftware into the facility.  

Thanks,
Jt