DuoVac High Vacuum Packages





A Better Piston Pump Choice
  • Improved design including steel belt guard, larger oil site port, no freeze plugs to leak, water jacket clean-out ports and optional fail save atmospheric vacuum break and water miser assemblies.
  • Quieter operation with valve deck noise reduction option.
  • Interchangeable with Stokes 412 including foot print, inlet and outlet location and shaft seal and valve deck wear components.
A Better Booster Pump Choice
  • Direct drive motor operation reduces seal maintenance and eliminates belt noise and maintenance.
  • Quieter operation with motor noise reduction option.
  • Tough air-cooled design allows variable frequency drive control option.
  • Variable frequency drive option reduces cycle time by starting the booster at atmosphere.
A Better Package Choice
  • Designed for higher uptime and reduced maintenance through better drive choices, better control choices and better component choices.
  • Whole package variable frequency drive option reduces operating and wear costs during low demand periods.
  • Interchangeable foot print and inlet and outlet locations with Stokes 1722 and 1738 packages. Direct drive motor can be mounted on either side.

DuoVac Specifications

DuoVac 3000

DuoVac 2300

DuoVac 2000

DuoVac 1500

Free Air Displacement (CFM)
2765 / 300
2000 / 300
1410 / 300
1000 / 300
Maximum Performance (CFM)
2340 / 265
1780 / 265
1260 / 265
930 / 265
Standard Motor Power (HP)
15 / 10
10 / 20
10 / 10
5 / 10
Standard Drive Configuration
Direct / Belt
Direct / Belt
Direct / Belt
Direct / Belt
Standard Rotation Speed (RPM)
3600 / 490
3600 / 490
3600 / 490
3600 / 490
Standard Cut In Pressure (Torr)
6.5
10
20
25
Inlet and Outlet Size (ANSI Flange)
8"
6"
6"
6"
Cooling (booster / backing pump)
Air / 2gpm
Air / 2gpm
Air / 2gpm
Air / 2gpm
Dimension A (inches)
55
55
55
55
Dimension B (inches)
56.5
56.5
56.5
56.5
Dimension C (inches)
64
58.9
53.4
49.7
Dimension D (inches)
51.38
51.38
51.38
51.38
Dimension E (inches)
33
33
33
33
Dimension F (inches)
40.75
40.75
40.75
40.75
Dimension G (pump exhaust)
3" NPT
3" NPT
3" NPT
3" NPT
Dimension H (inches)
7 / 8 Dia Holes
7 / 8 Dia Holes
7 / 8 Dia Holes
7 / 8 Dia Holes
Dimension J (pump inlet)
8" Flange
6" Flange
6" Flange
6" Flange

All systems include a Hull HS-300 rotary piston backing pump and an Aerzen booster pump.




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