Type VFD series slurry pump is heavy duty vertical pump to handle difficult tenacious froth . Product Description VFD here means Vertical Froth Duty Slurry Pump. Performance range size:2-8inches capacity:7-570m3/h head:5-25m material:Cr27,Cr28,CD-4MCu Factory touR KINGMECH PUMP FACTORY TOUR Package & Delivery