The maximum allowable operating vacuum will vary depending on R.P.M., ambient
temperature, altitude and time running. The basic principle to keep in mind is - faster
R.P.M., higher air temperature and longer run time all equal more heat in the pump.
When installing a NVE 747 we recommend a normal R.P.M. of 3600.NVE 747 High Vacuum Blower
NVE 747 Blower Specifications
Model Number 747
RPM Range 3000-4200
Maximum Air Flow-CFM 647
Maximum Continuous Vacuum 27 HG
Maximum Continuous Pressure 10 P.S.I
Pump Drive Rotation CW/CCW
Shaft Location HI/LO
Porting Size 4
Net Weight 335 lbs.
Optional Manifold Includes
4 Way Vacuum/Pressure valve Standard
Intake Filter Standard
Ballast Air Filter Standard
Ballast Air Silencer Standard
Exhaust Silencer Standard
Ballast & Exhaust Check Valve Standard
Pressure Relief Valve Standard