SQL Server Replication between a domain and VLAN
Is it possible to configure replicaiton ?


Yes.


  if so, is there any way to open connection only unidirectional , from production domain to VLAN ?


Packet-flow must, of course, work in both directions.  If the Distributor can connect to both the Publisher and Subscriber, you can use Push Subscriptions.  With a Push Subscription all the processes run on the Distributor, and the Subscriber would never need to connect to the Publisher or Distributor.