GE X2 Brochure download pdf (Page 6)

Roots RAM series units are recognized by many as the most volumetrically efficient blowers in the

industry. Unless otherwise noted, RAM series equipment may operate under either vacuum or pressure

application with no equipment modification, and can provide simultaneous vacuum and pressure

for a system with a single unit.

RAM series units feature integral-shaft ductile iron impellers with involute profiles. Headplates and

the rigid casing are cast grey iron, while the drive end and gear covers are aluminum. Carburized and

ground alloy steel spur timing gears are securely mounted on tapered shafts. All units in the RAM series

feature cylindrical roller bearings and splash lubrication for maximum life.

Detachable steel mounting feet permit adaptability to either vertical or horizontal installation

requirements.

Piston-ring shaft seals reduce gas leakage through the headplates, while lip-type oil seals maintain

lubrication in the bearings. RAM units are splash lubricated on both sides with high volume oil

reservoirs and convenient sight glasses.

R A M

Series Rotary Positive Displacement Blowers

RAM Blower

Frame Sizes 404 thru 624

All standard units are center-timed to allow rotation in either direction.

RAM-J WHISPAIR Blower

Frame Sizes 404J thru 624J

RAM-J units feature the original WHISPAIR jets to control pressure

equalization by feeding backflow in the direction of impeller movement.

The Whispair feature results in uni-directional flow and drive shaft rotation.

RAM-GJ Gas WHISPAIR Blower

Available on all RAM Frame Sizes

RAM standard blowers feature a piston ring system between the

compression chamber and vent cavities. This models’ vent cavities are

plugged for purge or drain. Special long-life mechanical seals with Viton

™

O-rings are installed at each bearing to control gas and oil leakage.

The seal incorporates a proprietary geometry that promotes enhanced

cooling and extended life.

RAM gas units are suitable for both vacuum or pressure service. Alternate

materials and optional O-ring material are available for these machines.

Please contact the factory for more information.

RAM-VJ Water Sealed WHISPAIR Vacuum Blower

Frame Sizes 406J thru 624J

These units are equipped with an inlet spray nozzle and seal water

flow meter for water injection. This feature cools the unit enabling

deeper vacuum levels than possible with conventional rotary

vacuum blowers.

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GE X2 Brochure Page 6