... steady and reliable 2.chamber, fluctuation,adjustable 3.used for producing PPR, PE, PVC pipe 4.CE and ... , spray devices etc. water pump offer circular water for the spray devices through the water tank, and the ... 280-630Vacuum pump power(KW)7.5Exhausting speed(m3/h)240Calibration tank length(mm)6000Longitudinal adjust range (mm) ... degree(MAX=pa)4000 high efficiency vacuum machine for plastic pipes