RAM™ VJ Vacuum Exhausters

ROOTS™ RAM™ WHISPAIR™ water-sealed vacuum exhausters are heavy-duty units designed with integral-shaft ductile iron impellers. Whispair vacuum exhausters reduce noise and power loss by utilizing an exclusive wrap-around plenum and proprietary WHISPAIR™ jet to control pressure equalization – feeding backflow in the direction of impeller movement, thereby aiding rotation.

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Features

Low noise level, less operating power required
Improved volumetric efficiency and reduced operating temperatures
Alloy steel timing gears
Cylindrical roller bearings
Piston ring air seals
Lip-type oil and shaft seals
Splash oil lubrication
Horizontal and vertical configurations available

Engineering Resources

Engineering resources:
Pressure curves: ramvj_drwg_pcurve_imp.pdf,
Vacuum curves: ramvj_drwg_vcurve_imp.pdf,
Dimension drawings: ramvj_drwg_dimensionsmp.pdf,
Assembly drawings: ramvj_drwg_assmbly.pdf,
Parts lists: ramvj_tab_partslist.pdf

Warranty

gts_5001_020107.pdf

Operating Principle

Incoming air is trapped by the impellers. Simultaneously, pressurized air is being discharged (right). As the lower impeller passes the wrap-around flange, WHISPAIR™ jets equalize pressure between trapped air and the discharge area, aiding impeller movement and reducing power requirements. Impellers move air into the discharge area (right). Backflow is controlled, resulting in reduction of noise relative to conventional blowers.

whspair_princ_op.pdf

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