Pir timer

#1
I am very much a novice and I am looking for help with something I am trying to build.
I want to build a 12 volt system that uses a PIR to open a small 4.8 watt gate valve and allow water through for around two minutes in a sanatary system. Then I would like the system to shut down the PIR for around three minutes before resetting regardless of PIR motion

Can anyone help