Nippon integral power steering

Head scratching and tyre kickin!! Been looking at integral power steering made by Nippon I can get a box only for $280 but will need to find pressures they run at if anyone has in a book somwhere the PSI pressure and flow rate the box needs to operate correctly of Model
- PSI-R66-019

how about something like this.

www.ultimatepowersteering.com.au/electri...ted-steering-epas-1/