S UMMARY S PECIFICATIONS Dresser ROOTS Small Rotary Lobe Positive Displacement Blowers Operating Principles Bi-Lobe Principle Two figure-eight lobe impellers mounted on parallel shafts rotate in opposite directions. As each impeller passes the blower inlet, it traps a finite volume of air and carries it around the case to the blower outlet, where the air is discharged. With constant speed operation, the displaced volume is essentially the same regardless of pressure, temperature or barometric pressure. Timing gears control the relative position of the impellers to each other and maintain small but finite clearances. This allows operation without lubrication being required inside the lobe cavity. WHISPAIR Principle Incoming air is trapped by the impellers. Simultaneously, pressurized air (right) is being discharged. As the lower impeller passes wrap-around flange, Whispair jet equalizes pressure between trapped air and discharge area, aiding impeller movement and reducing power. Impellers move air into the discharge area (right). Backflow is controlled, resulting in reduction of noise relative to conventional blowers. Contents Operating Principles & Warranty..................... 1 Universal RAI Series Description.................... 2 Universal RAI Performance Tables................. 3-6 Universal RAI Dimensions.......................... 6 RAM Series Description.......................... RAM Series Performance Tables.................... RAM Series Dimensions.......................... RCS Series Description............................ RCS Series Performance Tables......................11 RCS Series Dimensions............................ DVJ & DPJ Products Description..................... DVJ & DPJ Performance Tables................... DVJ & DPJ Dimensions..................... - Configurations & Typical Application Packages.......... Warranty Universal RAI and RAM -J blowers come with 24 month operational warranties (30 months from shipping*), all other blowers come with month operational warranties (1 months from shipping*) on all parts and workmanship. Full details are supplied in Warranty Policy WP-5020. POSITION 1 POSITION 2 POSITION 3 *The additional six months is allowed for shipping and special installation where approved in advance. DVJ/DPJ Principle Position 1: Incoming air is trapped between the impellers. Simultaneously, pressurized air is being discharged. Position 2: As the upper impeller passes the jet plenum, cooled, pressurized air flows into the space between the impeller and cylinder. This cools the trapped air, helps control thermal growth and allows higher discharge pressures. Position 3: The trapped air is then moved into the discharge flange (left). Backflow is reduced, resulting in lower operating noise level and reduced shock loading on the impellers. S-SRBS rev.060
Universal RAI Series Rotary Positive Displacement Blowers Basic Equipment Description All Universal RAI (URAI) series blowers are heavy duty rotary blowers in a compact, sturdy design engineered for continuous and maximum reliability. These blowers have grease lube on the drive-end with splash oil lube on the gear end. Roots exclusive figure- gearbox design improves oil distribution and lengthens bearing and gear life. This series features a grey iron casing, carburized and ground alloy steel spur timing gears secured to steel shafts with a taper fit and locknut, and grey iron involute impellers. Oversized anti-friction bearings are used, with a heavy duty cylindrical roller bearing at the drive shaft to withstand V-belt pull. Universal RAI Blower s 22 thru 1 The standard URAI blower features universal detachable rugged steel mounting feet to permit easy in-field adaptation to either vertical or horizontal installation requirements and any of four drive shaft positions top, bottom, right or left hand. All frame sizes are center-timed to allow for rotation in either direction. Universal RAI DSL Blower s 32 thru 6 This URAI blower features Dual Splash Lubrication (DSL). There is splash lubrication at the gear end and the drive end. The drive end has two shaft-mounted slingers and the gear end features Roots exclusive figure-eight gearbox design that work together to improve oil distribution and to maixmize gear and bearing life. This unit also features sight glasses (3/ ) for accurate oil level confirmation. Universal RAI-J WHISPAIR Blower s 33J thru J Roots refined the standard URAI line using computer-aided design techniques to incorporate the Roots exclusive WHISPAIR jet. The WHISPAIR jet uses shock suppression techniques for noise and pulsation reduction. This exclusive WHISPAIR feature can reduce noise 3-5 db on typical installations. Like the standard URAI blower, the URAI-J features universal detachable rugged steel mounting feet to permit easy in-field adaptation to any of four positions. Universal RAI-G Gas Blower s 32GJ thru 6GJ URAI gas blowers feature mechanical seals and Viton o-rings. The seal system is designed to meet or exceed gas industry safety standards, including provisions for purge gas in the headplates. The URAI gas blower uses detachable rugged steel mounting feet for easy in-field adaptation of drive shaft position to meet vertical or horizontal installation requirements by exchanging the orientation of the mounting feet. Universal RAI-J DSL Blower s 33J thru J This URAI blower features the WHISPAIR design with the dual splash lubrication feature to offer the longest life and quietest performance. 2
3 Universal RAI Blower Performance Table 22 24 32 33 42 45 4 53 59 65 6 6 6 11 1 10 525 10 525 10 200 10 200 10 200 60 60 60 250 250 250 55 00 2050 55 00 2050 55 00 2050 49 6 24 2 6 40 1 9 55 6 205 95 262 344 3 92 204 9 1 4 5 249 542 2 211 355 3 35 59 1 529 1 0 400 546 224 643 6 420 05 41 192 52 90 2 90 50 600 90 230 0.1 0.3 0.2 0.6 0.2 0.6 0.3 2.1 0.2 1.0 2. 0.6 1.3 3.5 0.4 0. 2.0 4.0 1.0 2.9 0. 3. 3. 5.6 2.3 6.6 9. 1.1 3.0 1.9 5.2. 3.1.1.3 1 PSI 6 PSI 63 1 5 19 93 9 2 9 1 5 224 306 69 11 3 6 9 53 196 490 3 1 321 2 306 54 464 6 34 492 9 55 90 260 44 1 6 460 23 25 6 4 1. 2. 5.4 3.9 5.2 2.2 5.4.0.9 11. 3.3.1 6.6.1 4.2. 2..3 4..2 2 1. 30.0. 19.0.5 21.9 29.9.9 40.6 55.2.1 1. 2.0.0 32.2 4.4 PSI 32 59 6 2 0 10 62 13 3 3 3 290 531 0 330 45 530 63 5 439 02 226 35 2.6 3. 5.6. 9.9 4. 9.9 9.4 19..3 1.2 1 2..5 19.4 26.5 31.0 42.1.2 2 3.9 45. 6.2 PSI 29 2 11 1 5 5 9 0 304 20 521 320 466 5 4 42 690 3.1 4.6 6.. 9.2 11.9 5.6 11..3 2 20.6 34.2 2 3 3.0 50.2 30.2 45.1 PSI 1 11 301 26 51.0 3 461 50 40 421 64.2 9.4..3 22.1 22.3 3.0 25.1 34.1 40.1 54.2 32. 4. PSI HGV 4 6 6 2 53 69 119 1 1 2 1 9 55 2 2 19 0 46 4 332 63 11 452 291 0 26 501 5 445 0 1 300 445 5 495 292 99 9 11 4 64 22 93 446 9 21 0.2 1. 2. 3.5 5.5 1.1 4.1 5.2.5.1. 1. 5.5.4 19.1 2.0.1.4 3.3 11. 2 3.9.9 30. 4.4.2 25.6 22. 32..9 33.9 53.4 6.0 19. 29.5.9 33.5 53.1. 4 64. Max. Vacuum 9 1 5 5 29 311 45 500 33 4 69..1..4 23. 2.0.6 43.1 35.1 5 PSI 1 3 295 30 452 4 63.3.. 25.4 2.9 39.1 3.6.0 PSI 3 64 3 21 95 1 31 2 11 61 229 3 1 2 42 1 34 59 203 496 42 11 325 3 553 0 42 24 93 353 499 9 01 29 63 00 4 46 31 21 0 59 40 60 2240 3.1 4.6 3.4 4.4 1.9 4.6 3.1..1 2. 2. 5..2.5.1 6.3. 4.1.5 1..3 26.0 4.5 11.9.4 1.9 2.6 34.9 4.6.4 23.4 11.1 2. 41. 1.1 44. 66.9 Notes: 1. Pressure ratings based on inlet air at standard pressure of. psia, standard temperature of 6 F, and specific gravity of 1.0. 2. Vacuum ratings based on inlet air at standard temperature of 6 F, discharge of 30 Hg and specific gravity of 1.0.
4 Universal RAI-J Blower Performance Table Universal RAI DSL Blower Performance Table Notes: 1. Performance based on inlet air at standard pressure of. psia, standard temperature of 6 F, and specific gravity of 1.0. 2. Vacuum ratings based on inlet air at standard temperature of 6 F, discharge pressure of 30 Hg and specific gravity of 1.0. 32 33 42 45 4 53 59 65 6 6 10 200 10 200 10 200 60 60 60 250 250 250 40 1 9 55 6 205 95 262 344 3 92 204 9 1 4 5 249 542 2 211 355 3 35 59 1 529 1 0 400 546 224 643 6 420 05 41 0.2 0.6 0.3 2.1 0.2 1.0 2. 0.6 1.3 3.5 0.4 0. 2.0 4.0 1.0 2.9 0. 3. 3. 5.6 2.3 6.6 9. 1 PSI 6 PSI 19 93 9 2 9 1 5 224 306 69 11 3 6 9 53 196 490 3 1 321 2 306 54 464 6 34 492 9 55 90 260 44 1 3.9 5.2 2.2 5.4.0.9 11. 3.3.1 6.6.1 4.2. 2..3 4..2 2 1. 30.0. 19.0.5 21.9 29.9.9 40.6 55.2 PSI 6 2 0 10 62 13 3 3 3 290 531 0 330 45 530 63 5.6. 9.9 4. 9.9 9.4 19..3 1.2 1 2..5 19.4 26.5 31.0 42.1 PSI 2 11 1 5 5 9 0 304 20 521 320 466 5 4 6.. 9.2 11.9 5.6 11..3 2 20.6 34.2 2 3 3.0 50.2 PSI 1 11 301 26 51.0 3 461 50 40.2 9.4..3 22.1 22.3 3.0 25.1 34.1 40.1 54.2 PSI HGV 2 1 9 55 2 2 19 0 46 4 332 63 11 452 291 0 26 501 5 445 0 1 300 445 5 495 292 99 9 11 4 64 5.2.5.1. 1. 5.5.4 19.1 2.0.1.4 3.3 11. 2 3.9.9 30. 4.4.2 25.6 22. 32..9 33.9 53.4 6.0 19. 29.5 Max. Vacuum 9 1 5 5 29 311 45 500 33..1..4 23. 2.0.6 43.1 PSI 1 3 295 30 452.3.. 25.4 2.9 39.1 PSI 21 95 1 31 2 11 61 229 3 1 2 42 1 34 59 203 496 42 11 325 3 553 0 42 24 93 353 499 9 01 29 63 00 3.4 4.4 1.9 4.6 3.1..1 2. 2. 5..2.5.1 6.3. 4.1.5 1..3 26.0 4.5 11.9.4 1.9 2.6 34.9 4.6 33 45 4 10 200 10 200 60 60 250 4 19 3 251 332 66 15 39 9 233 526 1 342 53 0.6 2.2 1.0 2.6 1.9 4.5 6.6 4 HGV 40 1 190 4 241 323 4 3 6 220 5 329 50 2.3 3.1 3.9 5.1 1.3 2. 6.3 1. 3..4 2.2 9.3 6 HGV 33 4 65 232 3 46 4 3 63 20 500 95 3 55 3.1 4.1 2.0 5.1 6. 1. 3..2 4.9. 2.9 6.9.0 HGV 2 1 55 223 304 4 51 194 4 3 304 545 3. 4.9 6.2.1 4.6 9. 2.9.0.5.3 HGV 1 10 2 294 4 3 11 44 291 532 4.5.5 9. 5.5 11..4.2 1.0 HGV 1 3 202 24 345 460 26 51 5.2 6.. 11.3.5 1.9 11. 19. HGV PSI 2 1 5 5 224 306 3 3 3 53 16 490 2 290 51 2.2 9.2 11.9.9 11. 9.4 19. 4.2. 4. 1 3.0 Max. Pressure 9 2 339 452 509.1.5 19.1 21.0 HGV 332 501.4 2 HGV
5 Universal RAI-G Blower Performance Table URAI-G Notes: 1. Performance based on METHANE at standard pressure of. psia, standard temperature of 6 F, and specific gravity of 5. 2. For vacuum service consult factory or nearest Roots sales office. 32 33 42 45 4 53 59 65 6 6 00 100 2500 00 100 2500 00 100 2500 00 100 2500 00 100 2500 00 100 2500 00 00 100 250 00 00 100 250 00 00 100 250 00 100 00 100 00 100 3 64 96 5 52 9 2 200 91 2 224 3 54 90 2 199 111 269 402 9 244 3 531 209 34 5 26 3 5 205 399 52 6 9 301 399 534 206 43 641 5 3 905 01 0 0.2 0.4 0.6 0.3 0. 0.6 1.3 2.1 0.3 0. 0. 1.0 2. 2.1 3.5 0. 2.1 4.0 2.2 3.0 0. 1. 3. 2. 3. 5.6 2.3 5.0 6. 9. 1 PSI 25 52 3 3 3 1 6 9 201 3 40 6 11 6 9 244 3 11 2 325 500 5 6 19 32 4 2 325 55 0 490 29 9 269 503 5 432 590 0 291 09 0. 1.1 2.3 1.0 2.1 3.5 1.0 2.1 3.3 1.9 2.9 4.2 6.5 3.9 5.6.5 3.3 5. 2.3 4.2 5.5 9.5 3.4.1.9 2.3 4. 6.4.9 3..6.0. 6. 24. 3 PSI 43 5 4 24 61 5 12 53 1 29 30 6 9 15 69 2 22 0 96 191 303 4 43 2 15 3 3 2 304 5 0 334 463 02 5 24 345 41 0 396 554 2 224 42 3 45 1. 3. 3.5 5.1 2. 4.1 5..5 3.4 5.2 4. 6.9.3 4.2 6.4 9.0.6 2.3 4.1 5.4 9.0 3.9 6.9 9.0.0 5..1.2 22.0 3...2.9.4.2 21. 11.3 23.0 30.0 40.0 5 PSI 6 11 52 96 3 40 1 12 25 22 59 1 55 2 346 14 25 461 32 111 4 302 65 19 26 51 11 3 441 0 5 229 32 463 91 526 43 69 95 92 3.5 5.2 3.4 4..0 3. 5..9 11. 2.2 3.4 4..1 4.5 6. 9.5.1.9.5 5..5.3 5.4 9.6.5 2.9 30.0..1 19.0.5 1.2 2 29.9 32.1 4 55.2 PSI 6 1 46 5 92 5 23 10 25 490 200 29 433 321 49 696 5.5.0.5.9.4.9 9.0 1 1.9.0 19.4 3. 21. 29.0 26.9 34. 4 11 PSI 51 1 3 9 25 246 4 1 25 421 300 45 66 6.4 9.4... 22.1 1. 22.9 3.0 19. 25. 34.1 31. 41.0 54.2 PSI HGV 35 93 23 51 0 50 99 0 24 29 5 0 6 6 19 29 92 11 255 4 41 9 4 262 9 195 25 46 6 309 404 1 1 226 29 400 1 3 4 642 2 61 922 00 1. 5. 1.3 2.1 4.0.2.1 1.3 4.3. 4..6.4 3.3 6.2 11.3 19.1 1. 4.0 6..4 3.0 6. 1 21.0 4.4 9..5 30. 3.0.5. 20.6 4..0 20.2 32..9 2 34. 49. Max. Vacuum 49 99 0 3 22 11 20 4 291 449 666 6.9.1 9.4.. 23. 21.3 2.6.6 34.1 44.1 PSI 96 4 26 15 24 409..0. 25.4 22. 29.5 39.1 PSI
Universal RAI-J DSL Blower Performance Table 4 PSI 5 PSI 6 PSI PSI PSI 9 PSI PSI PSI VACUUM DATA INHGV 33J 5 1.9 1 6 2.9 64 3.3 61 3. 5 4.3 4. 51 5. 53 3.0 2950 9 3.3 5 4.1 1 4.9 5. 5 6.5 2 0.1 5 9. 119 3550 16 4.1 5.0 1 6.0 15 6.9 12.9 9. 9. 2 11. 6.2 J 2 6 3.9 1 4. 11 5.5 95 5.4 2950 254 5.5 249 6. 244.1 239 9.4 2 9. 3550 3 6. 3.3 305 9.9 300 1 23 11.9 45J 1 3. 5 4. 0 5.6 5 6.6 0.5 6.4 2 9.3 1 6.4 2950 306 6. 300.2 295 9. 290 11.3 25.9 21.4 2.0 253.5 3550 39.2 33.1.0 3.9 35. 354 1.6 349 19.5 326.2 4J 2 5.0 20 6.2 201.4 195.6 5.4 2950 40. 399. 392.9.9 34.4 3550 502.9 495.3 4. 42 1.3 444 1. J 110 196 4.6 1 5. 6.9 15.0 10 9.1 4.2 9 1 0.6 6. 324.0 3. 3.4 304.1 29. 292.5 2 1.2 2 2 266.6 250.2 0.0 553 1. 54 2 541 2 5 26.0 530 2. 521 34.2 501 2 NOTES: 1. Performance based on inlet air at standard pressure of. psia, standard temperature of 6º F, and specific gravity of 1.0. 2. Vacuum ratings based on inlet air at standard temperature of 6º F, and specific gravity of 1.0. Universal RAI Series Blowers Dimensions Drive Shaft Location A B C D D1 D2 O O 1 P P 1 R U Keyway Inlet & Disch. Dia. 22 5. 5.00 9.5 3.5 6.25 3.5 9.63 6. 6.25 9.25 5.00.625.1 x.094 1.0 NPT 5 32 24 5..00 11.5 3.5 6.25 3.5 9.63 6. 6.25 9.25 5.00.625.1 x.094 2.0 NPT 5 43 32.25 6.5 15 5.00.50 5.00.1..5. 6.5.50.1 x.094 5 NPT 1.5 69 33.25.63. 5.00.50 5.00.1..5. 6.5.50.1 x.094 2.0 NPT 1.5 4.25.00.63 5.00.50 5.00.1..5. 6.5.50.1 x.094 NPT 1.5 2 42.00.25.00 6.25.25 6.25.06.63.5.63.25.5.1 x.094 NPT 2.00 45.00.00.50 6.25.25 6.25.06.63.5.63.25.5.1 x.094 NPT 2.00 9 4.00 11.5 1.63 6.25.25 6.25.06.50.50.63.25.5.1 x.094 3.0 NPT 2.00 53.50.3.3 6.25 15 6.5 1 11..25 1.25.5.250 x.5 NPT 0 3.50 11.00 1.00 6.25 15 6.5 1.25 11.00 1.25.5.250 x.5 4.0 NPT 0 10 59.50 0 21.1 6.25 15 6.5 1.25 11.00 1.25.5.250 x.5 4.0 NPT 0 204 65 11.00*.00 1.3.5.5.5 23..5 19.5 11.5 1.35.3 x.6 3.0 NPT 3.00 245 6 11.00*.00 21.3.5.5.5 23..5 19.5 11.5 1.35.3 x.6 5.0 NPT 3.00 25 6 11.00* 20.00 2.3.5.5.5 23.25.00 19.5 11.5 1.35.3 x.6 6.0 FLG 3.00 425 6 0** 11.5 19.94 11.00 1.00 11.00 26. 20.69 19.3 25.50 62.35 x.1 4.0 NPT 3.50 400 11 0**.5 25.19 11.00 1.00 11.00 26. 19.50 1.00 25.50 62.35 x.1 6.0 FLG 3.50 530 1 0** 23.5 32.19 11.00 1.00 11.00 26. 19.50 1.00 25.50 62.35 x.1.0 FLG 3.50 650 *1.00 in horizontal configuration **21.00 in horizontal configuration Approx. Net Wt. (lbs.) 6
RAM Series Rotary Positive Displacement Blowers Basic Equipment Description ROOTS RAM series units are recognized as the most volumetrically efficient equipment 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 ground alloy steel spur timing gears are securely mounted on taper end shafts. All units in the RAM series feature cylindrical roller bearings for maximum life. Detachable steel mounting feet permit in-field adaptability to either vertical or horizontal installation requirements. Piston-ring shaft seals reduce gas leakage through the headplates, while lip-type oil seals prevent lubricant from entering the air chamber. RAM units are splash lubricated on both sides with high volume oil reservoirs. RAM Blower s 404 thru 624 All standard units are center-timed to allow rotation in either direction. RAM -J WHISPAIR Blower s 404J thru 624J RAM-J units feature the exclusive WHISPAIR jets to control pressure equalization by feeding backflow in the direction of impeller movement, thereby aiding rotation. RAM -GJ Gas WHISPAIR Blower Available on all RAM s RAM standard gas blowers feature a piston ring system between the compression chamber and vent cavities. All vent cavities are plugged for purge or drain. Special long-life mechanical seals and Viton 0-rings are installed at each bearing to control gas and oil leakage. The seal incorporates a unique geometry that promotes enhanced cooling and extended seal life. RAM gas units are suitable for both vacuum or pressure service. Alternate material units and optional 0-ring material are available for gas units, please contact the factory for more information. RAM -VJ Water Sealed WHISPAIR Blower s 406J thru 624J RAM WHISPAIR units are available equipped with an inlet spray nozzle and seal water flow meter for water injection. This feature cools the vacuum unit to enable the unit to reach deeper vacuum while minimizing potential impeller and casing distortion.
RAM, RAM -J and RAM -GJ Blower Performance Table 4 PSI 6 PSI PSI PSI PSI PSI 1 PSI Max. Vacuum HGV 9 0 6.9 3.6 1.3 1 5. 404 2950 20 6.9 21 9.6 262.4 255.2 24 1.0 239 22.2.0 240. 4000 396 11.1.4 3 1.1 30 21.9 4 25. 355 31.3 34.9.0 350. 225 5.5 2.9 19.5 1.0 1.6 13. 406 2950 426.2 411.3 39 3 22.9 3 2.1 3 33.4.0 5.2 4000 601.1 21.1 54 26. 2 3 552 3.3 539 46. 526 55.4.0 531 23. 33.2 3 11. 296.6 29 19.4 264 2 259.2 409 2950 63.0 6 21.1 2.5 59 33.9 4 40.2 544 49..0 546 24.2 4000 900 23.3 30. 59 39.4 42 4.0 2.5 06 69.3 2.1.0 96 35.2 450. 420. 394 20. 32 25. 352 3 344 1.6 4 2950 49 19.9 19 2.0 94.5 2 44.9 52 53.4 24 6.0 2 32.1 4000 1199 30.6 19 40.6 14 52.0 11 63.4 11 4.9 4 91..0 60 46.6 65.2 630 2 592 3 559 3. 51 26.4 41 2950 5 29. 30 41. 1192 54.6 19 6.0 92 4.1 4000 100 45.6 155 60.6 11. 4 94..0 91 69. 110 61.6 6 24.6 6 32.6 524 40.6 46 4.6.0 501 25. 6 1 25.6 2 3.5 24 49.4 92 61.3 943 929 41. 3000 21 49.0 205 6. 20.6 196.4 1930.2 1.9.0 1 1. 110 06 25.1 921 3.1 49 49.1 6 61.1.0 51 3. 624 93 39.3 0 5.2 5.0 3 92. 94 63.0 3000 313.6 30 30.1 2953 6..0 2 4. RAM -VJ Water Sealed Blower Performance Table HGV HGV HGV 20 HGV 22 HGV 24 HGV 30 11 0. 4 9.3 119 1.5 33.6 406 2325 301.4 2.4 20.2 22 1.3 191 19.9 2 3200 4.5 40 21. 400 22. 353 26.9 3 29.0 240 31.1 30 24.9 25.9 249. 202.9 0 9 20.1 409 2325 45.6 423 20.6 4 21. 354 26.5 302 2.9 3 31.3 3200 653 2 611 30.3 599 31.9 529 46 41.3 359 44.5 30 39 1 342.9 331 1.0 269 22.3 2 24.4 11 26.5 4 2325 6 1.9 3 26. 550 41 34. 402 3.9 22 41.1 3200 69 3.9 9 41.0 04 49.5 622 53. 49 30 9 1.1 5 25.1 49 26. 41 2325 2.4 46 39.3 26 41. 3200 05 4 22.3 1199 59.5 10 4 20.3 0 29.9 696 31.9 6 39.5 541 43.4 424 4.2 6 110 32.0 11 46.3 49.1 05 6 911 66.2 65 1.9 2400 43 46.6 5 65.5 6 69.3 4 4.4 35 92.0 11 99.5 10 12 30.4 63 44. 45 4.6 624 1 4. 3 69.0 60 2400 2466 69.3 239 9 2351 2.9 Notes: 1. Pressure ratings based on inlet air at standard pressure of. psia, standard temperature of 6 F, and specific gravity of 1.0. 2. Vacuum ratings based on inlet air at standard temperature of 6 F, discharge of 30 Hg and specific gravity of 1.0.
C AF - INLET AF' - DISCHARGE P P ' LEFT DISCHARGE RIGHT DISCHARGE TOP DISCHARGE O R U +.000 -.001 D D1 O' B A BOTTOM DISCHARGE A' VERTICAL CONFIGURATION (Horizontal Air Flow) HORIZONTAL CONFIGURATION (Vertical Air Flow) RAM Blowers Dimensions Drive Shaft AF AF Approx. A A B C Location O O P P R U Keyway Inlet Discharge NetWt D D1 Diameter Diameter (lbs) 404.00 11.00.5 0 15.50.63.50.00.25 9.00 00.35 x.1 3.0 NPT 3.0 NPT 2.25 200 406.00 11.00.5 20 15.50.63.50.00.25 9.00 00.35 x.1 4.0 NPT 4.0 NPT 2.25 230 409.00 11.00.5 23.50 15.50.63.00 11.00.25 9.00 00.35 x.1 4.0 NPT 4.0 NPT 2.25 20 4.00 11.00.5 26.50 15.50.63.00 11.00.25 9.00 00.35 x.1 6.0 FLG 6.0 FLG 2.25 330 41.00 11.00 22.5 30 15.50.63.00 11.00.25 9.00 00.35 x.1.0 FLG.0 FLG 2.25 4 6.00.00 20.5 34.00 9.00 22.00.25.50 20.00.00 2.000.500 x.250.0 FLG.0 FLG 3.00 650 624.00.00 2.5 40.44.00 9.00 22.00.25.50 20.00.00 2.000.500 x.250.0 FLG.0 FLG 3.00 5 RAM -J & RAM -GJ Blowers Dimensions Drive Shaft AF AF Approx. A A B C Location O O P P R U Keyway Inlet Discharge NetWt D D1 Diameter Diameter (lbs) 404J.00 11.00.5 0 15.50.63.5.50.25 9.00 00.35 x.1 3.0 NPT 3.0 NPT 2.25 20 406J.00 11.00.5 20 15.50.63.5.50.25 9.00 00.35 x.1 4.0 NPT 4.0 NPT 2.25 300 409J.00 11.00.5 23.50 15.50.63.5.50.25 9.00 00.35 x.1 5.0 NPT 5.0 NPT 2.25 350 4J.00 11.00.5 26.50 15.50.63.50.00.25 9.00 00.35 x.1 6.0 FLG 5.0 FLG 2.25 400 41J.00 11.00 22.5 30 15.50.63.50 0.25 9.00 00.35 x.1.0 FLG 6.0 FLG 2.25 500 6J 9.00.00 20.5 32.19.00 9.00 22.00.50.25 20.00.00 2.000.500 x.250.0 FLG 6.0 FLG 3.00 624J 9.00.00 2.5 40.19.00 9.00 22.00 1.5 1.50 20.00.00 2.000.500 x.250.0 FLG.0 FLG 3.00 9 RAM VJ Blowers Dimensions Drive Shaft AF AF Approx. A A B C Location O O P P R U Keyway Inlet Discharge Net Wt D D1 Diameter Diameter (lbs) 406J.00 11.00.5 20 15.50.63.5.50.25 9.00 00.35 x.1 4.0 NPT 4.0 NPT 2.25 300 409J.00 11.00.5 23.50 15.50.63.5.50.25 9.00 00.35 x.1 5.0 NPT 5.0 NPT 2.25 350 4J.00 11.00.5 26.50 15.50.63.50.00.25 9.00 00.35 x.1 6.0 FLG 5.0 FLG 2.25 400 41J.00 11.00 22.5 30 15.50.63.50 0.25 9.00 00.35 x.1.0 FLG 6.0 FLG 2.25 500 6J.00.00 24 34.00 9.00 22.00.50.25 20.00.00 2.000.500 x.250.0 FLG 6.0 FLG 3.00 00 624J.00.00 29.44 40.44.00 9.00 22.00 1.5 1.50 20.00.00 2.000.500 x.250.0 FLG.0 FLG 3.00 00 9
RCS Series Rotary Positive Displacement Blowers Basic Equipment Description 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 are used. Piston rings reduce air leakage through the headplate shaft openings, while lip-type oil seals prevent lubricant from entering the air chamber. All RCS series blowers are equipped with splash oil lubrication at both ends of the blower. Unless otherwise noted, RCS series units incorporate detachable rugged steel mounting feet to permit in-field adaptability to either vertical or horizontal installation. RCS Blower s 1 thru 2 All standard units are center-timed to allow rotation in either direction. RCS-J WHISPAIR Blower s J thru 32J RCS WHISPAIR units reduce noise and power loss by utilizing an exclusive wrap-around plenum and proprietary WHISPAIR jet portals 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. Reduced pulsation results in lower noise, and reduced shock loading on the impellers. RCS WHISPAIR units frames 1J thru 32J have feet integral to the headplates.
11 RCS Series Blower Performance Table 1 24 2 0 2250 0 2250 0 2250 92 2 31 26 319 420 19 65 422 24. 55. 6.6 33.5 5.0 3.1 3.3 5.0 1.0 4 PSI 94 221 302 0 300 4090 3 3529 46. 9.2 6.0 49.6 6. 2.. 1.3 6 PSI 20 220 2955 1 290 3990 69 34 452 4.6 2. 65.6.5.3 5.1.6 206. PSI 55 22 290 20 292 3902 19 33 442 6 6.2 4.6 1. 10.2 221.9 93.5 194.0 252.2 PSI 203 231 2 323 3223 431 9.6 194.0 201.9 26 230.3 29.6 PSI 2003 251 205 3.9 23.0 249.4 32 PSI HGV.0.0.0.0.0.0.0.0.0 62 1961 209 30 264 5 110 3035 4192 35.5 96.0 3.1 4.9 9.5 54.9.9 19.4 Max. Vacuum RCS-J Series Blower Performance Table 21 1 21 26 32 110 2600 110 2600 00 2250 0 2250 0 2250 0 2550 935 4 24 66 2096 3264 91 2 31 11 242 340 2 3553 465 166 4263 22..6 6 30.6 49.0 1.1 24. 54.6 4.4 29. 65. 9. 3.0 1.3 44.4 9 1.9 4 PSI 69 2 2345 11 200 315 93 220 302 2 2 35 40 3421 4544 0 45 5452 33.4 5 4.0 45.0 0.3 111..6.1 3. 43.9 94.0 5 54. 4.2 65. 9.6. 6 PSI 2 229 1932 30 19 2206 2954 93 264 3546 30 33 4433 5 392 5320 44.0 6.5 59.4 9 2.3 4.5 3.0 5.2 2.2 0.2 2. 1. 19.2.2 11.9 23.5 PSI 65 2241 16 3034 54 21 29 905 250 346 12 32 4335 5 354 5202 54.6 3.9 9.1 3. 1.0 12. 60.4 5.1 0.3 195.4 9 1.0 242.2.5 224.1 290.3 PSI 21 34 219 9 10 295 202 230 2499 339 34 424 65.2 99.6 1..1 4.3 203.4.5 191. 1.5 230.6 222.2 26.2 PSI 662 5 2 96 126 294 2002 250 2403 3302 1.1 3.3.5 9. 6.3 249.3. 235. 220. 23.4 PSI HGV.0.0.0.0.0.0.0.0.0.0.0.0 04 1 23 953 134 2902 11 195 206 0 2351 324 1 2939 4061 2055 3526 42 3.1 60.3 9 50.2 2.1 55.6 95.4 2.1 66. 6. 3.3 2.9.5 99.9 11.3 21. Max. Vacuum 1930 26 219.0 29. 1 PSI
VERTICAL CONFIGURATION (Horizontal Air Flow) HORIZONTAL CONFIGURATION (Vertical Air Flow) RCS Blowers Dimensions Drive Shaft AF AF Approx. A A B C Location O O P P R U Keyway Inlet Discharge Net Wt D D1 Diameter Diameter (lbs) 1 19.00 2.00 24.25 3.44 1.00.00 2.3 20.3 19.00 25.25 0 2.50.625 x.3.0 FLG.0 FLG 4.00 00 24 19.00 2.00 30 44.69 1.00.00 2.3 20.3 19.00 25.25 0 2.50.625 x.3.0 FLG.0 FLG 4.00 30 2 19.00 2.00 34.00 4.19 1.00.00 2.3 20.3 19.00 25.25 0 2.50.625 x.3 FLG FLG 4.00 00 C AF - INLET AF' - DISCHARGE P P ' LEFT DISCHARGE RIGHT DISCHARGE TOP DISCHARGE O R U +.000 -.001 D D1 O' B A BOTTOM DISCHARGE A' VERTICAL CONFIGURATION (Horizontal Air Flow) HORIZONTAL CONFIGURATION (Vertical Air Flow) RCS-J Blowers Dimensions Drive Shaft AF AF Approx. A A B C Location O O P P R U Keyway Inlet Discharge Net Wt D D1 Diameter Diameter (lbs) J 19.00 26.00 20 33.3 1.00.00 25. 19.00 1.00 25.50 2.35.625 x.3.0 FLG.0 FLG 3.50 10 21J 19.00 26.00 2.00 39.3 1.00.00 25. 19.00 1.00 25.50 2.35.625 x.3.0 FLG.0 FLG 3.50 00 1J.5 22.00 24.25 3 21.00.00 30.00 25.5 25.50 25.00 1 2.50.625 x.3.0 FLG.0 FLG 4.00 20 21J.5 22.00 2. 42.25 21.00.00 30.00 25.5 25.50 25.00 1.00 2.50.625 x.3.0 FLG.0 FLG 4.00 100 26J.5 22.00 33. 4.50 21.00.00 30.00 25.5 25.50 25.00 1.00 2.50.625 x.3.0 FLG.0 FLG 4.00 205 32J.5 22.00 3.50 52. 21.00.00 30.00 25.5 25.50 25.00 1.00 2.50.625 x.3 FLG.0 FLG 4.00 2325
DVJ & DPJ Rotary Positive Displacement Blowers Basic Equipment Description ROOTS DVJ blowers feature an exclusive discharge jet plenum designed to allow cool, atmospheric air to flow into the casing. This unique design permits continuous operation at levels to blank-off with a single stage unit, without water injection or heat exchangers. In the case of ROOTS DPJ blowers, discharge air is cooled before injecting into discharge jet plenum. Headplates and the rigid casing are cast from grey iron, with aluminum drive end and gear covers. Carburized ground alloy steel spur timing gears are securely mounted on taper end shafts. These units are designed with detachable steel mounting feet to permit in-field adaptability to discharge left, right or vertically upwards. 2504 DVJ WHISPAIR Blowers 2504 DVJ This unit features ball bearings, with splash lubrication at the gear end and grease lubrication at the drive end. Lip-type seals restrict oil leakage into the air stream. RAM DVJ Blower s 406 DVJ, 4 DVJ and 6DVJ RAM DVJ units feature integral-shaft ductile iron impellers with involute profiles. The top shaft is extended for drive side outlet blowers, and either shaft can be extended for drive on top or bottom outlet blowers. RAM DVJ units feature cylindrical roller bearings for maximum life. Piston ring shaft seals reduce gas leakage through the headplates, while lip-type oil seals prevent lubricant from entering the air chamber. The units are splash lubricated on both sides with high volume oil reservoirs.they can be equipped with mechanical seals for gas applications. Please contact the factory for more information on gas applications. 21 DVJ WHISPAIR Blowers 21 DVJ This unit has the same features as the RAM DVJ blowers. RAM 406 DPJ Dry High-Pressure Blower 406 DPJ In this unit, the ROOTS WHISPAIR jets control pressure equalization by feeding cooled discharge air in the direction of impeller movement, thereby aiding rotation. Cooled discharge air is mixed with incoming air to control temperature rise. This design permits continuous operation with discharge pressures up to 30 PSIG in a single stage unit. RAM DPJ units feature cylindrical roller bearings and is splash lubricated at both the gear and drive ends. Piston rings are used to reduce air leakage through the headplate shaft openings, while lip-type oil seals prevent lubricant from entering the air chamber. The top shaft is extended for drive side outlet blowers, and either shaft can be extended for drive on top outlet blowers. RAM DPJ units can be equipped with mechanical seals for gas application. Please contact the factory for more information on gas applications.
2504 DVJ Blower Performance Table HGV HGV 20 HGV Max. Free Air 2400 4 2.1 2. 21 3.5 2504J 2655 2.3 44 3.1 30 3.9 2990 6 2.6 3.5 41 4.4 3540 6 3.1 5 4.2 60 5.2 395 1 90 4. 5 45 119 4.1 5.4 93 6. 490 10 5 4.6 4 6.0 9.4 RAM DVJ & 21 DVJ Blower Performance Table 406 4 6 21 2320 2695 34 4000 2320 2695 34 4000 24 243 260 3000 110 2200 2600 Max.Free Air 66 32 2 5 HGV 266.3 329.2 44. 54 19.2 531 20.2 6 23. 945 32.0 91.3 35. 11 43. 5 5 192 59. 2002 63.0 113 43.3 196 66.4 252 4.3 35 2.0 HGV 229.5 292.9 43 2 5 24.4 45 26. 51 3 1 41. 4.2 903 4.5 119 5. 45 66.6 19.6 19 2.6 95 5.2 106.0 2411 9.6 293 20 HGV 1. 241 19.6 26.2 459 29. 335 3 40 3. 69 5 9 5.1 50 59.1 45 1.9 92 2. 25 9.4 1 2.3 55 5. 2190 4. 253 0. 24 HGV 0 20.0 3 2 2 31.0 1 34.9 0 39. 25 46.2 54 61.3 19 6.9 455 0. 50 6.0 99 9. 31 41 1.9 333 5.2.3 16 0.1 2331 190.0 2 HGV 2 26.0 4 34.5 0 3. 44.5 51. 94 6.6 239.1 9.6 24 96.6 21 1.9 605 0.3 6. 95. 2 3. 2 19.1 90 2 DPJ Blower Performance Table 406 2320 300 4000 2 23 3 51 HGV 19.4 26.0 35.1 4.2 20 HGV 119 2 339 495 25. 34.5 46.3 61. 25 HGV 99 194 319 44 32.1 42.9 5.5 6.3 0 15 300 4 30 HGV 3.5 5 6.6 9 Notes:1. Vacuum ratings based on inlet air and jet air standard pressure and standard temperature of 6 F, discharge and jet pressures of 30 Hg and specific gravity of 1.0. 2. Refer to factory for performance guarantee above 24 HgV. 3. DPJ ratings based on inlet air at standard pressure of. psia, standard temperature of 6 F, and specific gravity of 1.0. 2504 DVJ Blower Dimensions A B C D O O P P R R U Keyway AA AA AB AF AF AW WGT. 2504J 6.50.50 11.3 4.00 9. 13.3.5 5.25 4.3.500.1 x.094 4.5.63 4.5 NPT NPT 2 NPT 5G 65 NOTES: 1. All dimensions are in inches. 2. Weights are in pounds, and are approximate. 3. Do not use for construction.
RAM DVJ Blower Dimensions 406J 4J 6J A A 11 11 Drive Shaft B C Location O O D D1.5 20 15.50.3 1.00.5 26.50 15.50.3 19.25 24 30.00 9.00 23 22.5 P P R R 1.5.5 9.00 00.35 x.1 1.5.25 9.00.63 00.35 x.1 25 19.25.00 9.63 2.000.500 x.250 U Keyway AA AA AB.25.50 6.5 6.00 11.5 6.50.50.5 6.5 AF 4 NPT 6 FLG FLG AF AW 5 NPT 4 NPT 6 FLG 5 FLG FLG FLG 2.25 2.25 3.00 Approx. Net Wt. (lbs) 5 55 95 NOTES: 1. All dimensions are in inches. 2. Weights are in pounds, and are approximate. 3. Do not use for construction. 21 DVJ Blower Dimensions 21J A B C 6.50.50 11.3 Drive Shaft Location O O D 4.00 D1 4.00 9. 13 P.3 P.5 R 5.25 U.500 Keyway.1 x.094 AA 4.5 AA.63 AB 4.5 AF AF NPT NPT AW 2 NPT 5G Approx. Net Wt. (lbs) 65 NOTES: 1. All dimensions are in inches. 2. Weights are in pounds, and are approximate. 3. Do not use for construction. DPJ Blower Dimensions 406 DPJ A.00 A 1 B C D 11.00.5 20 15 D 1.50 E 0 E 1 4.5 F 4.5 G.3 M 6.95 N 3.4 O O 1.3 1.00 R 9.00 S 4.50 P 1.5 V 2.5 Keyway.35x.1 AA.25 AA 1.50 AB.63 406 DPJ AD 3.06 AE. AF AW.25 4 NPT 6.5 Weight 5 NOTES: 1. All dimensions are in inches. 2. Weights are in pounds, and are approximate.
Configurations ROOTS blowers and compressors are available in two basic configurations to meet nearly any piping arrangement or installation requirement. Orientation for inlet and discharge connections is determined from the drive end: Vertical Configuration: For vertical configuration, one impeller is mounted above the other, unless otherwise noted the blower drive end located opposite the timing gears. Inlet and discharge connection flanges are positioned to provide horizontal air/gas flow. Specify blower driver for either top or bottom connection. Horizontal Configuration: For horizontal configuration, impellers are located side-by-side. Unless otherwise noted, the blower drive end is located opposite the timing gears. Inlet and discharge connection flanges provide a vertical air/gas flow. Specify blower driver for either left or right hand blower shaft. LEFT: Vertical Configuration RIGHT: Horizontal Configuration Special Note: URAI-J models are designed to operate with only one shaft rotation direction to take full advantage of the WHISPAIR feature. Therefore, a URAI-J blower should be operated in the following combinations only: CCW Rotation: Bottom Shaft; Right side discharge or a Left Shaft; Bottom discharge. CCW Rotation: Top Shaft; Left side discharge or a Right Shaft; Top discharge. CW Rotation: Bottom Shaft; Left side discharge or a Right Shaft; Bottom discharge. CW Rotation: Top Shaft; Right side discharge or a Left Shaft; Top discharge. Typical Application Packages Pressure Application Gas Application High-Vacuum Application Exhauster Application S-SRBS rev.060 www.rootsblower.com Visit Contact Us page for your nearest location Houston, Texas Headquarters U.S. Toll Free Phone: 1--3-ROOT(S) (66) Direct Phone: 32-590-2600 Connersville, Indiana Operations U.S. Toll Free Phone: 1--442-9 Direct Phone: 65-2-925 United Kingdom Operations Phone: +44 (0) 4 422 222 USA/Canada Sales Phone: 3-444-30 Houston, Texas Factory Service Phone: -96-4 Mexico City Sales and Factory Service Phone: +52 55 59 511 Dubai Sales and Factory Service Phone: +91 4-3031 Malaysia Sales Phone: +60 3 23 040 China Sales Phone: +6 46 2440 Shanghai Factory Service Phone: +6 21 55 63 200 Dresser, Inc. all rights reserved. Printed in the U.S.A. All information subject to change without notice. ROOTS, Universal RAI-J, Universal RAI-G, RAM, and WHISPAIR are trademarks of Dresser, Inc. Universal RAI is a registered trademark of Dresser, Inc.