The identifier (specifically R-R-FTO-KC-2018-1058 ) refers to a certification mark associated with the Festo VPPM Proportional-Pressure Regulator Go to product viewer dialog for this item.
If your device is from 2018 or earlier, Festo offers legacy documentation through: festo rrftokc2018 manual pdf
Leo gave her a step-by-step lifeline:
To find the exact manual for your specific variant, follow these steps on the Festo Support Portal : Manual’s solution: Check the flow control valves
Go to (support.industry.festo.com) or Festo's main download center and search for these exact document numbers: Outdated Revisions: Festo revises safety standards
: Enter the Part Number or Product Key (found on the device label) into the search bar.