The file on this page is in PDF format. If you require Adobe Reader then that can be downloaded (free) from Here.
This Service Valve Equivalents booklet was published by the RSGB in 1947, this electronic copy is of the third edition from 1948. It is an 18 page PDF file, 3.63MB in size, with 2 facing pages per PDF page. The cover has received a fair bit of damage but the internal pages are OK.
It lists equivalents for Navy, RAF, Army, "CV" (Common Valve), US Signals and Continental Valves, just click on the image below to download it.