[Stewart Hedley]

Does anyone know the performance difference between the 6.6 2 stage & 5.7 3 stage vac motors

I'm after a new portable and hose length is paramount (lots of town houses where I live)

Thanks

Stu

[john martin]

 
  6.6  has 131" waterlift  and  139 CFM ( airflow)
 
  The 1500w 5.7 three stage has 137 " waterlift  and  100 CFM

  Another rating is airwatts , lift x CFM/ 8.5

  The 6.6 has 620 airwatts      The 5.7 has about 450

 
  So in a machine with a parallel configuration ..
  you could say a triplevac 5.7machine and a twin 6.6 machine will be around the same .

 A standard twinvac 5.7 machine will have 137" lift  and 200 cfm
 triplevac  5.7 will have  137 " lift and  around 290 CFM
 Twin 6.6 machine  will have 131 " lift  and around 290 CFM


 There are more powerfull 5.7s available in the states , but none reaching the UK at the moment .
                   




 
 

[Stewart Hedley]

Couldn't ask for a better answer

Thanks

[Ian Gourlay]

What about in Series

[Simon@arenaclean]

You would increase lift, but cfm would drop