Sterling AF-XXX Manuel D’Utilisation

Additive Feeders 

Chapter 3: Installation 

20 of 55 

This example shows how to extrapolate a desired feed rate of 3 lbs./hr., based on the feed 
rates of 3 trial rpm settings. 

Sample 1 = 2 pounds per hour @ 20 rpm 
Sample 2 = 4 pounds per hour @ 40 rpm 
Sample 3 = 6 pounds per hour @ 60 rpm 

 

In this example, a feed rate of 3 lbs./hr. would be about 30 rpm. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1

2

3

4

5

6

7

0

10 20 30 40 50 60 70

8

Trial RPM settings

Calculated

feed rates

(lbs/hr)

@ the

trial RPM

1

4

2

3