Can anyone provide me with fan curve for a Keith Blackman 30/9 centrifugal fan (1970 vintage, 30" diameter x 9" wide impellor, 30 HP motor ,belt driven at 2920 rpm)
Regards
Arkle (Ralph Knight)
I've got an old Keith Blackman book at home; I'll have a look at it this evening and see if it has what you need (I'm in the UK, so that will be six or seven hours from now!).
Sorry; my book (Keith Blackman Centrifugal Fan Guide) is dated 1980/81 and concentrates on their Series 28 fans. it doesn't cover the fan in which you're interested.
I believe Keith Blackman are now part of the (huge) Flakt group, so perhaps you could contact them?