Brochure

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Roots RCS series units are heavy-duty units with integral-shaft ductile iron impellers in an involute
profile. The headplates, gear cover, drive end cover and rigid, one-piece casing are grey iron. Carburized
and ground alloy steel spur timing gears are taper mounted on the shafts and secured with a locknut.
Cylindrical roller bearings combined with high volume oil reserves offer low maintenance and trouble
free operation.
Piston rings reduce air leakage through the headplate shaft openings, while lip-type oil seals maintain
lubricant in the roller bearings.
All RCS series blowers are equipped with splash oil lubrication at both ends of the blower.
RCS Series Rotary Positive Displacement Blowers
RCS Blower
Frame Sizes 817 thru 827
All standard units are center-timed to allow rotation in either direction.
RCS series units incorporate detachable steel mounting feet to permit
adaptability to either vertical or horizontal installation.
RCS-J WHISPAIR Blower
Frame Sizes 715J thru 832J
RCS WHISPAIR units reduce noise and power loss by utilizing a wrap-around
plenum and proprietary WHISPAIR jet ports to control pressure equalization.
The WHISPAIR jets meter discharge pressure in the direction of impeller
movement, thereby aiding rotation. Discharge pulsation is reduced by the
pre-pressurization of the blower chamber. This reduced pulsation results in
lower noise, and reduced shock loading on the system components.
RCS WHISPAIR units frames 817J thru 832J have feet integral to the
headplates.