GE Roots Universal RAI blowers Brochure
Contents
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3. mounted for delivery straight precision machined two lobe impellers Accessories are available through our distributors Ground steel shafts ROOTS Synthetic Oil and grease is recommended to Detachable steel mounting feet maintain warranty ee ee dm IL Oa i w POSITION 1 POSITION 2 POSITION 3 POSITION 4 T1 rr Two figure eight lobe impellers mounted on parallel shafts rotate in sorowo opposite directions As each impeller passes the blower inlet it traps BOTTOM DISCHARGED aa LEFT DISCHARGED MTM EE a definite volume of gas and carries it around the case to the blower VERTICLE CONFIGURATION HORIZONTAL CONFIGURATION outlet where the gas is discharged With constant speed operation the displaced volume is essentially the same regardless of pressure temperature or barometric pressure 775 77 s3 1050 1080 aas 1538 625 11 25 675 81811738 1 88 ho 68 11 00 11 00 13 00 21 38 8 75 14 75 8 75 10 82 21 63 15 13 Timing gears control the relative position of the impellers to each other and maintain small but definite clearances This allows operation without lubrication being required inside the gas casing PO oo c o N on L ho oo D l a NIN e e d no oo e N e N co co NM R5 ENG alata 00 o T AL MI ci oio n2 C1 C k MN c1 a jo h a NI C5 Co Co o gt C1 OO C5 Co MIN
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5. DRESSER a Tele e Blowers Compressors and Controls i a Fi J b Ps d Pin MA v s m M x MU S d a 71 6 z T e 4y z af a S SA ru mie k i 7 Ped i A bue krg 1 b BASIC BLOWER DESCRIPTION Universal RAI G gas blowers are heavy duty rotary blowers designed with mechanical seals and rugged steel mounting feet Optional feet are available for horizontal installations The compact sturdy design is engineered for continuous service when operated in accordance with speed and pressure ratings The basic model consists of a cast iron casing carburized and ground alloy steel spur timing gears secured to steel shafts with a taper mounting and locknut and cast iron involute impellers Oversized anti friction bearings are used with a cylindrical roller bearing at the drive shaft to with stand V belt pull The Universal RAI G features splash oil lube on the gear end and grease lube on the drive end JESIGN AND CONSTRUCTION FEATURES ROOT s exclusive figure eight gearbox design improves Mechanical seals oil distribution to maximize gear and bearing life Rigid one piece cast iron casing Each unity is mechanically tested and given a 15 psig erinti static leak test A 1 8 NPT purge port is provided at each ii tenn SEATS seal for buffer gas application as required After testing the Splash oil lubricated spur timing gears unit is sprayed with a protective paint and boxed or skid Connections in standard pipe sizes
6. e Phone 1 877 442 7910 Direct Phone 1 765 827 9285 United Kingdom Operations Phone 44 0 1484 422 222 USA Canada Sales e Phone 1 773 444 3360 16 Dresser Roots 9 IVdfi IESI3MUN S1004 318VL 39NVIAHO3H3d Mexico City Sales and Factory Service e Phone 52 55 5889 5811 Dubai Sales and Factory Service Phone 971 4 8830831 Malaysia Sales e Phone 60 3 2163 0480 Houston Texas Factory Service e Phone 1 713 896 4810 China Sales Phone 86 10 8486 2440 PE Roots 2007 Dresser Inc all rights reserved Printed in the U S A All information subject to change without notice e Universal RAI and EasyAir are registered trademarks of Dresser Inc e ROOTS RAM X and WHISPAIR are trademarks of Dresser Inc Shanghai Factory Service e Phone 86 21 5858 7638 S 60A01 rev 0608 www dresser com
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