| Size | Control diff.pressure
 range(psi)
 | Flowrate (US.gallon per minute) | 
| 2" | 3¸21 | 5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,2 6,27,28 | 
| 6¸44 | 7,8,9,10,11,12,13,14,15,17,19,21,23,25,27,29,31,33,55,37,3 9,40 | 
| 9¸55 | 12,14,16,18,20,22,24,26,28,30,32,3,36,38,40,41,44,46,48,50 ,52,54,56,58,60 | 
| 21/4"3"
 | 3¸21 |  10-90 INCREMENTS 5US.GPM | 
| 6¸44 | 10-128 INCREMENTS 5US.GPM | 
| 9¸55 | 15-200 INCREMENTS 5US.GPM | 
| 4 " | 3¸21 | 18-180 INCREMENTS 5US.GPM | 
| 6¸44 | 30-252 INCREMENTS 5US.GPM | 
| 9¸55 | 30-400 INCREMENTS 5US.GPM |