Medical Vacuum System Sizing Program Angel Diaz. Ver. 29 Sept 2009

Medical Vacuum System Sizing Program Angel Diaz Ver. 29 Sept 29

Pipe Sizing - Instructions for Use While there are a number of methods that can be used to achieve the same result, the instructions written here are intended to make it easy for a novice to correctly size vacuum piping for a medical facility. We have prepared a spreadsheet to help you with tabulating the total P in your system. Worksheet Medical Vacuum Pipe Sizing, on Tab 5, will calculate a running total P through the system along a given run of pipe. 1) 2) 3) 4) Begin by Sizing the entire vacuum system using the Medical Vacuum System Sizing equation on Tab 3. Make a drawing of the piping system, similar to Figure 1 (Tab 4. Piping Sizing Diagram ). Some prefer isometric layouts to show all three axes. For drops and risers, draw lines at 45 degrees: Towards the lower right for drops; towards the upper left for risers. Mark Nodes at the beginning and end of any section of hard piping on which a terminal or other point of use is connected, and at any junction of two or more pipe intersections where loads (flow demand) are combined. Nodes 5) 6) 7) Start with the node at the inlet of the system, label it N1. Continue upstream on the main header until the first branch line intersection. Label this N2. Follow the main header upstream labeling each intersection. Do not include the farthest branch line to a terminal, or point of use (P.O.U.). Label each P.O.U., starting with the P.O.U. in the branch line closest to the system. Label the farthest P.O.U. in the branch line F1, then work towards the main header, numbering each P.O.U. in successive numbers. Continue upstream to the next branch line and repeat. At each P.O.U., write the flow demand of the terminal or device. Refer to the Flow (nlpm/scfm) column on the Vacuum Inlet Flows worksheet (# 11). Beginning at the farthest main or branch line in the piping network away from the vacuum system, label each section of pipe with the total flow of all terminals upstream of the piping section. Also, list the actual length of the section of pipe. 8) 9) Wherever a fitting, valve, filter, or other element is in the piping, place a circle around the device. Once a pipe size is selected, the "Pipe Fittings Allowance" worksheet will be referenced in a later step. Size the main header first. To establish an initial amount for the P (Delta-P, or pressure difference in a vacuum system it is actually a pressure rise, not a pressure drop) allowable for each section of the piping, count the total number of sections in the main header between nodes, then divide the total allowable P for the facility (usually three or four in.hg) by the number of sections. For a 4 in.hg P, divide 4 by the total number of sections, which yields the P goal for each pipe section. For the example on Worksheet #4, Piping System Diagram, the total number of sections in the main line is 5. 4/5 =.8 in.hg P. Individual sections of pipe may have higher or lower P, but the total of all Ps should be equal to or less than the total P of 4 in.hg. To calculate the actual P for each section of pipe, use the total flow through that section done in step 7. Refer to one of the worksheets (7-9) listing the P for the various pipe sizes. The P shown is for 1 ft of pipe. If you are working in scfm, then read down the Standard Conditions/scfm column until you find the flow that you totaled in step 7. Read right until you find a P that is closest to the P you estimated in this step (1) for the pipe section. You may need to go to the next worksheet for a larger pipe size. To the actual pipe length, add the equivalent length (see worksheet 6, Pipe Fittings Allowance ) of all fittings including the downstream tee (or other fitting) in the section. Since the P for pipe is proportional to length, you must divide the total equivalent pipe length by 1 to determine the P you need (e.g., for a section 5 ft lg, P 5 = P 1 [ 5 / 1 ]). 1) 11) 12) 13) Size the branch line that has the most sections of pipe in the manner used in step 9, but include in the section count all sections of the main header between the beginning of the branch line and the vacuum source. The reason is that the total P to the farthest terminal in any line must include all pipe sections between the terminal and the vacuum system. The allowable P for each pipe section of branch line may be lower or higher than that in the main header as calculated in step 9. Size the branch line that has the highest flow requirements in the manner of step 1. Even though the number of sections may be fewer, the pipe may be larger due to the higher flow. Sections of pipe with smaller flows or fewer terminals may not need to be calculated individually. Keep in mind that the smallest allowable size for hard pipe is 3/4 in., so if you are already working with 3/4 in. piping, there is no need to calculate each section individually. Follow the piping towards the vacuum system; always entering all the data from any branch lines extending from the last upstream (away from the pump) node, starting from the terminal farthest in the branch line. For flow through tees, where flows enter from one end of the run, use the equivalent pipe length (EPL) for the run (see Tab 6, Pipe Fittings Allowance ). For the flow entering from the leg, enter the EPL for the side branch of the tee, even though data for the run may already have been entered for the same tee. This results in a slightly conservative result, but the effect on the total system is insignificant. Static branch lines, which are used for pressure and temperature gauges, and other devices wherein there is no flow introduced, need not be included in the pipe sizing. The manufacturer should make recommendations as to connection size required. 14) Calculate the discharge pipe size for the flow calculated on Tab 3, System Sizing.

Vacuum Pump Size (SCFM*) = (A N x A UF x.25) + (B N x B UF x.25) + (OR N x 1.5) + (WAGD N **x 1.8) = 74.25 scfm Where: A N = Number of A Type Terminals 1 B N = Number of B Type Terminals 2 OR N = Number of Operating Rooms 1 WAGD N = Number of WAGD Terminals** 1 A UF = Use Factor for A Type Terminals (e.g., 23% =.23).77 B UF = Use Factor for B Type Terminals (e.g., 23% =.23).44 Medical Vacuum System Sizing * SCFM at 19" Hg (or the lead vacuum switch set point). ** Add this factor only when the WAGD needs are being included in the Medical/Surgical system. When sizing dedicated WAGD systems, use 1.8 SCFM per terminal Location Usage-Type A Terminals Recommended No. of Terminals Unit Location Usage-Type B Terminals Recommended No. of Terminals Unit Operating Room-Major 3 Room Patient Rooms 1 Room Operating Room-Minor 3 Room (Medical and Surgical) (Accessible to ea. bed) Orthopedic Surgery 3 Room Examination and Treatment Room 1 Room Surgical Cystoscopy and Endoscopy 3 Room (Medical, Surgical, Postpartum Care) Critical Care (General) 3 Bed Isolation (Infectious and Protective; 1 Bed Isolation (Critical) 3 Bed Medical and Surgical) Intensive Care 3 Bed Security Room (Psychiatric, 1 Bed Coronary Critical Care 2 Bed Medical, Surgical, Postpartum) Pediatric Critical Care 3 Bed Newborn Nursery (Full-Term) Level 3, 4 1 1 Bed Newborn Intensive Care (Level 1, 2) 3 Bed Pediatric Nursery 1 Bed Cardio, Ortho, Neurological 3 Room Pediatric and Adolescent 1 Bed Post-Anesthesia Care Unit (PACU) 3 Bed Seclusion Treatment Room -- Caesarean/Delivery Room 3 Room Anesthesia Workroom -- Inlet Recovery Room 3 Bed Outpatient Recovery/Observation 3 Bed Labor/Delivery/Recovery (LDR) 2 Patient Minor Procedures 1 Room Birthing Rooms 2 Patient Postpartum Bedroom/Recovery 1 Patient Infant Resuscitation Inlet Labor Room 1 Patient Triage Area 1 Room Labor/Delivery/Recovery/Postpartum 2 Patient (Definitive Emergency Care) (LDRP) Definitive Emergency Care, 1 Room Initial Emergency Management 1 Room Exam/Treatment Room (per bed) Definitive Emergency Care, 1 Bed Orthopedic and Cast Room 1 Room Holding Area Catheterization Labs 2 Inlet Trauma/Cardiac Room 3 Room Autopsy Room 1 Inlet Cardiac Catheterization Lab 2 Inlet (per workstation) Special Procedures (Anesthetizing) 3 Surgical Excision Room 1 Room Special Procedures (Non-Anesthetizing) 2 Dialysis Units.5/bed Bed Additional Anesthetizing locations 3 Respiratory Care Convenience Inlet Endoscopy/Cystoscopy 3 Room Central Supply Convenience Inlet Equipment Repair, Calibration Convenience Inlet Demonstration (Inservice)/Teaching Convenience Inlet EENT, EEG, ECG, EMG 1 Room Decontamination Convenience Inlet Operating Room-Veterinary Room Animal Research 1 Inlet Operatory-Dental Room Dental Treatment Inlet May vary. 1 - In facilities with newborn intensive care units, terminal requirements in a newborn nursery (full-term, Level 3,4) may be reduced.

Figure 1

Start Node End Node Actual Pipe Length Medical Vacuum Pipe Sizing Form Total Pipe Section Flow Total Pipe Fittings Allowance (ft) See Tab 6 Pipe Size See Tabs 7-9 Pressure Loss per 1 ft (in.hg) See Tab 7-9 Actual Pressure Loss (in.hg) N n N n feet scfm feet inch P P Enter data in blue cells Total: Reference Symbol Description Nn N 1, N 2 N n A node; a beginning or end point, or connection where two pipe lines join, indicated by a blue dot.

Equivalent Length of Straight Pipe (feet) Copper Pipe Size Type of fitting ¾" 1" 1¼" 1½" 2" 2½" 3" 4" 6" 8" Elbow-45.5 1 1 1.5 2 2.5 3.5 5 7 11 Elbow-9 2 2.5 3 4 5.5 7 9 12.5 19 29 Tee-9 -Run.5.5.5.5 1 1 2 3 Tee-9 -Side Branch 3 4.5 5.5 7 9 12 15 21 34 5 Valve - Ball 5.5.5.5 Valve - Gate.5 1 1.5 2 3.5 5 Valve - Butterfly 7.5 1 15.5 16 13.5 12.5 Valve - Check 3 4.5 5.5 6.5 9 11.5 14.5 18.5 26.5 39 Coupling.5.5.5.5 1 1 2 3

Air Flow at 19 in.hgv - Copper L Tube Pressure Difference per 1 ft / Velocity Actual Conditions Standard Conditions At Pump Inlet 29.92 in.hga; 68 F; 36% RH Pipe Size - ¾" acfm l/m scfm nl/m P (ft/min) 1.37 28.33.5 14.16.24 49 2.74 77.62 1. 28.33.79 853 4.11 116.43 1.5 42.49.163 1213 Pipe Size - 1" 5.48 155.24 2. 56.66.268 1636 P (ft/min) 6.85 194.5 2.5 7.82.397 219.112 1184 8.22 232.85 3. 84.99.546 2443.154 1433 For instructions for use, refer to Instructions worksheet Pipe Size - 1¼" 9.59 271.66 3.5 99.15.711 298.2 175 P (ft/min) 1.96 31.47 4. 113.31.91 3282.254 1925.93 1264 12.33 349.28 4.5 127.48 1.19 368.312 2158.115 1417 13.7 388.9 5. 141.64 1.331 41.375 245.138 1577 Pipe Size - 1½" 15.7 426.9 5.5 155.81 1.569 4543.443 2665.163 175 P (ft/min) 16.44 465.71 6. 169.97 1.824 58.515 2938.189 1928.83 1319 17.81 54.52 6.5 184.14 2.15 5332.594 3127.219 253.95 145 19.18 543.33 7. 198.3 2.392 5835.674 3422.248 2247.19 1541 2.55 582.14 7.5 212.46 2.78 6183.761 3626.281 2381.122 1682 21.92 62.95 8. 226.63 3.37 6542.855 3837.315 2519.137 178 23.29 659.76 8.5 24.79 3.378 691.952 453.35 2661.153 188 24.66 698.56 9. 254.96 3.719 7481 1.45 4388.385 2881.169 1983 26.3 737.37 9.5 269.12 4.82 7875 1.152 4619.424 332.185 2143 27.4 776.18 1. 283.29 4.473 8279 1.259 4856.463 3188.22 2252 28.77 814.99 1.5 297.45 4.875 8693 1.373 599.56 3347.22 2365 3.14 853.8 11. 311.61 5.289 9117 1.486 5347.547 3511.239 248 31.51 892.61 11.5 325.78 5.714 9551 1.66 562.592 3678.26 2539 32.88 931.42 12. 339.94 1.742 5732.64 3763.28 2659 34.25 97.23 12.5 354.11 1.869 5995.687 3936.3 2781 35.62 19.4 13. 368.27 1.999 6265.735 4113.321 296 36.99 147.85 13.5 382.44 2.131 654.784 4294.342 334 38.36 186.66 14. 396.6 2.266 6821.834 4478.366 398 39.73 1125.47 14.5 41.76 2.421 6964.892 4572.388 323 41.1 1164.27 15. 424.93 2.561 7254.944 4763.412 3365 42.47 123.8 15.5 439.9 2.713 755.996 4957.437 3433 43.84 1241.89 16. 453.26 2.868 77 1.58 556.461 3572 45.21 128.7 16.5 467.42 3.25 85 1.112 5256.486 3713 46.58 1319.51 17. 481.59 3.99 816 1.176 5357.513 3785 47.95 1358.32 17.5 495.75 3.362 8474 1.237 5563.539 3931 49.32 1397.13 18. 59.92 3.528 8633 1.33 5668.568 44 5.69 1435.94 18.5 524.8 3.696 8956 1.361 588.594 4154 52.6 1474.75 19. 538.24 3.882 9119 1.429 5987.624 423 53.43 1513.56 19.5 552.41 4.55 9451 1.494 625.652 4384 54.8 1552.37 2. 566.57 1.565 6315.683 4462 57.54 1629.98 21. 594.9 1.698 6651.742 47 6.28 177.6 22. 623.23 1.84 6997.84 4943 63.2 1785.22 23. 651.56 1.989 7232.872 511 65.76 1862.84 24. 679.89 2.139 7592.939 5364 68.5 194.46 25. 78.22 2.31 7838 1.1 5537 71.24 218.8 26. 736.54 2.467 8212 1.79 582 73.98 295.69 27. 764.87 2.638 8467 1.155 5982 76.72 2173.31 28. 793.2 2.81 8856 1.226 6257 79.46 225.93 29. 821.53 2.991 912 1.31 6443 82.2 2328.55 3. 849.86 3.159 9524 1.384 6729 84.94 246.17 31. 878.19 1.465 6922 87.68 2483.79 32. 96.52 1.555 7119 9.42 2561.4 33. 934.84 1.639 7318 93.16 2639.2 34. 963.17 1.725 7622 95.9 2716.64 35. 991.5 1.812 7828 98.64 2794.26 36. 119.83 1.98 836 11.38 2871.88 37. 148.16 1.998 8248 14.12 2949.49 38. 176.49 2.98 8462 16.86 327.11 39. 114.82 2.2 8679 19.6 314.73 4. 1133.14 2.293 8899 112.34 3182.35 41. 1161.47 2.398 9121 115.8 3259.97 42. 1189.8 2.55 9346

Air Flow at 19 in.hgv - Copper L Tube Actual Conditions Standard Conditions Pressure Difference per 1 ft / Velocity At Pump Inlet 29.92 in.hga; 68 F; 36% RH Pipe Size - 2" acfm l/m scfm nl/m P (ft/min) For instructions for use, 38.36 186.66 14. 396.6.98 1781 refer to Instructions worksheet 39.73 1125.47 14.5 41.76.14 1857 41.1 1164.27 15. 424.93.111 1934 PRESSURE LOSS 42.47 123.8 15.5 439.9.117 1974 IN INCHES OF MERCURY 43.84 1241.89 16. 453.26.124 253 45.21 128.7 16.5 467.42.13 2135 46.58 1319.51 17. 481.59.138 2176 47.95 1358.32 17.5 495.75.145 226 49.32 1397.13 18. 59.92.152 231 5.69 1435.94 18.5 524.8.159 2388 52.6 1474.75 19. 538.24.167 2432 53.43 1513.56 19.5 552.41.175 252 54.8 1552.37 2. 566.57.183 2565 57.54 1629.98 21. 594.9.2 272 6.28 177.6 22. 623.23.216 2842 63.2 1785.22 23. 651.56.234 2938 Pipe Size - 2½" 65.76 1862.84 24. 679.89.252 383 P (ft/min) 68.5 194.46 25. 78.22.272 3183.97 264 71.24 218.8 26. 736.54.289 3335.14 2163 73.98 295.69 27. 764.87.31 3439.111 223 76.72 2173.31 28. 793.2.33 3596.118 2332 79.46 225.93 29. 821.53.352 374.126 242 82.2 2328.55 3. 849.86.372 3868.133 258 84.94 246.17 31. 878.19.394 3979.141 2581 87.68 2483.79 32. 96.52.416 492.149 2654 9.42 2561.4 33. 934.84.441 427.157 2728 93.16 2639.2 34. 963.17.462 4381.166 2841 95.9 2716.64 35. 991.5.488 45.174 2918 98.64 2794.26 36. 119.83.512 462.183 2996 11.38 2871.88 37. 148.16.536 4741.192 374 14.12 2949.49 38. 176.49.564 4864.21 3154 Pipe Size - 3" 16.86 327.11 39. 114.82.589 4989.211 3235 P (ft/min) 19.6 314.73 4. 1133.14.617 5116.22 3317.95 2324 112.34 3182.35 41. 1161.47.642 5243.23 34.99 2382 115.8 3259.97 42. 1189.8.671 5373.24 3482.13 2441 117.82 3337.59 43. 1218.13.7 554.249 3569.18 25 12.56 3415.2 44. 1246.46.727 5636.26 3655.112 2561 123.3 3492.82 45. 1274.79.756 5771.271 3742.116 2621 126.4 357.44 46. 133.12.788 596.281 383.121 2683 128.78 3648.6 47. 1331.44.815 644.292 3919.125 2746 131.52 3725.68 48. 1359.77.846 6183.33 49.13 289 134.26 383.3 49. 1388.1.878 6253.315 455.135 284 137. 388.91 5. 1416.43.91 6394.326 4147.14 295 142.48 436.15 52. 1473.9.975 6682.348 4333.15 335 147.96 4191.39 54. 1529.75 1.42 691.372 4475.16 3135 153.44 4346.62 56. 1586.4 1.111 7199.397 4669.17 3271 158.92 451.86 58. 1643.6 1.18 7427.422 4816.181 3374 164.4 4657.1 6. 1699.72 1.251 7659.448 4967.192 3479 169.88 4812.33 62. 1756.37 1.324 7973.474 517.23 3622 175.36 4967.57 64. 1813.3 1.44 8213.5 5326.215 3731 18.84 5122.81 66. 1869.69 1.478 8456.53 5483.228 3842 186.32 5278.4 68. 1926.35 1.562 873.557 5644.239 3954 191.79 5433.28 7. 1983. 1.639 8953.588 586.251 467 Pipe Size - 4" 197.27 5588.52 72. 239.66 1.726 928.616 5971.265 4183 P (ft/min) 22.75 5743.75 74. 296.32 1.85 9465.648 6138.277 43.73 2446 28.23 5898.99 76. 2152.97.677 637.291 4418.76 2513 213.71 654.23 78. 229.63.79 6479.34 4539.8 2582 219.19 629.46 8. 2266.29.739 6653.318 4661.83 2651 224.67 6364.7 82. 2322.95.773 6829.331 4784.87 2721 23.15 6519.94 84. 2379.6.87 77.346 499.91 2792 235.63 6675.17 86. 2436.26.842 7127.361 4994.95 284 241.11 683.41 88. 2492.92.877 731.376 5122.98 2913 246.59 6985.65 9. 2549.58.98 7495.39 5251.12 2986 252.7 714.88 92. 266.23.945 7619.47 5338.16 336 257.55 7296.12 94. 2662.89.981 788.421 547.111 3111 263.3 7451.36 96. 2719.55 1.18 7999.437 563.114 3187 268.51 766.59 98. 2776.2 1.56 8127.453 5693.119 3238 273.99 7761.83 1. 2832.86 1.94 8321.47 583.123 3316 287.69 8149.92 15. 2974.5 1.194 8718.513 617.134 3474 31.39 8538.1 11. 3116.15 1.297 9423.555 6392.145 3635 315.9 8926.1 115. 3257.79 1.395 9538.6 6682.157 38 328.79 9314.19 12. 3399.43.647 6979.169 397 342.49 972.29 125. 3541.8.695 7282.182 4142 356.19 19.38 13. 3682.72.744 7592.195 4318 369.89 1478.47 135. 3824.36.794 7855.28 4468 383.59 1866.56 14. 3966.1.845 8177.221 4651 397.29 11254.65 145. 417.65.92 845.235 486 41.99 11642.74 15. 4249.29.955 8728.25 4964 424.69 123.83 155. 439.93 1.14 91.265 5124 438.39 12418.93 16. 4532.58 1.69 9296.281 5287 452.9 1287.2 165. 4674.22 1.13 9587.295 5453 465.79 13195.11 17. 4815.86.312 5621 479.49 13583.2 175. 4957.51.327 5791 493.19 13971.29 18. 599.15.344 5965 56.89 14359.38 185. 524.79.362 614 52.59 14747.47 19. 5382.44.378 6283 534.29 15135.56 195. 5524.8.396 6463 547.99 15523.66 2. 5665.72.414 669 575.38 16299.84 21. 5949.1.452 6943 62.78 1776.2 22. 6232.29.49 7286 63.18 17852.2 23. 6515.58.527 7637 657.58 18628.39 24. 6798.87.571 7956 684.98 1944.57 25. 782.15.612 8282 712.38 218.75 26. 7365.44.655 8614 739.78 2956.94 27. 7648.73.698 8953 767.18 21733.12 28. 7932.1.746 9254 794.58 2259.3 29. 8215.3.791 965

Air Flow at 19 in.hgv - Copper L Tube Actual Conditions Standard Conditions Press. Diff. per 1 ft / Velocity At Pump Inlet 29.92 in.hga; 68 F; 36% RH Pipe Size - 6" acfm l/m scfm nl/m P (ft/min) 62.78 1776.2 22. 6232.29.72 3252 63.18 17852.2 23. 6515.58.78 349 657.58 18628.39 24. 6798.87.84 3551 684.98 1944.57 25. 782.15.9 3697 712.38 218.75 26. 7365.44.97 3845 739.78 2956.94 27. 7648.73.13 3996 767.18 21733.12 28. 7932.1.11 413 794.58 2259.3 29. 8215.3.116 4287 821.98 23285.48 3. 8498.58.124 4427 849.38 2461.67 31. 8781.87.131 4589 876.78 24837.85 32. 965.16.139 4733 94.18 25614.3 33. 9348.44.146 4879 931.58 2639.22 34. 9631.73.154 528 958.97 27166.4 35. 9915.1.162 5178 986.37 27942.58 36. 1198.3.17 5332 113.77 28718.76 37. 1481.59.178 5465 141.17 29494.95 38. 1764.87.187 5622 168.57 3271.13 39. 1148.16.196 5759 195.97 3147.31 4. 11331.44.25 592 1164.47 32987.77 425. 1239.66.227 6274 For instructions for use, refer to Instructions worksheet Pipe Size - 8" 1232.97 34928.23 45. 12747.88.252 6662 P (ft/min) 131.47 36868.68 475. 13456.9.277 711.73 414 1369.96 3889.14 5. 14164.31.34 7395.8 4234 1438.46 4749.6 525. 14872.52.331 7763.88 4444 156.96 4269.6 55. 1558.74.358 814.95 466 1575.46 4463.51 575. 16288.95.387 8497.13 4865 1643.96 4657.97 6. 16997.17.416 8863.111 574 1712.45 48511.43 625. 1775.38.448 9236.119 5287 178.95 5451.88 65. 18413.6.479 9616.127 556 1849.45 52392.34 675. 19121.81.136 5711 1917.95 54332.8 7. 1983.3.145 592 1986.45 56273.25 725. 2538.24.154 6132 254.94 58213.71 75. 21246.46.136 6349 2123.44 6154.17 775. 21954.67.173 655 2191.94 6294.63 8. 22662.89.183 6774 226.44 6435.8 825. 23371.1.194 6982 2328.94 65975.54 85. 2479.32.24 7193 2397.44 67916. 875. 24787.54.214 748 2465.93 69856.45 9. 25495.75.225 7626 2534.43 71796.91 925. 2623.97.236 7826 262.93 73737.37 95. 26912.18.247 85 2671.43 75677.82 975. 2762.4.258 8256 2739.93 77618.28 1. 28328.61.27 8465 288.42 79558.74 125. 2936.83.284 9677 2876.92 81499.2 15. 29745.4.296 889 2945.42 83439.65 175. 3453.26.38 917 313.92 8538.11 11. 31161.47.32 934 382.42 8732.57 1125. 31869.69.332 9526

Discharge Air Flow (with Vacuum Pump Operating at 19 in.hgv) Standard Conditions Pressure Difference per 1 ft / Velocity 29.92 in.hga; 68 F; 36% RH Pipe Size - 1" Pipe Size - 1¼" Pipe Size - 1½" scfm nl/m P (ft/min) P (ft/min) P (ft/min) 15. 424.93.44 2322.149 1524.65 177 2. 566.57.669 396.245 232.18 1436 25. 78.22.988 3856.364 2531.159 1789 3. 849.86 1.359 4633.499 341.219 2149 35. 991.5 1.781 546.655 3549.288 257 4. 1133.14.829 445.362 2858 45. 1274.79 Pipe Size - 2" 1.19 4573.446 323 5. 1416.43 P (ft/min) 1.22 576.535 3586 55. 1558.7.17 2276 1.439 566.632 396 6. 1699.72.247 2717 1.677 698.737 438 65. 1841.36.283 2946 1.938 6611.848 467 7. 1983..323 3154.968 5 75. 2124.65.364 34 Pipe Size - 3" 1.88 539 8. 2266.29.48 3622 P (ft/min) 1.218 5743 85. 247.93.453 3853.56 1595 1.353 618 9. 2549.58.53 455.62 1679 1.5 643 95. 2691.22.552 4298.68 178 1.643 6815 1. 2832.86.65 4512.74 1868 1.8 7154 15. 2974.5.656 4732.81 1959 1.962 752 11. 3116.15.712 4994.88 268 12. 3399.43.828 542.12 2244 Pipe Size - 4" 13. 3682.72.956 5864.118 2428 P (ft/min) 14. 3966.1 1.89 6325.134 2619.35 1489 15. 4249.29 1.228 685.151 2817.4 162 16. 4532.58 1.372 7255.169 34.44 178 17. 4815.86 1.53 7673.189 3176.49 187 18. 599.15 1.684 815.28 3374.54 1919 19. 5382.44 1.852 8593.228 3557.6 223 2. 5665.72 2.26 947.249 3746.65 231 225. 6373.94.37 423.81 239 25. 782.15 Pipe Size - 6".37 4687.97 2666 275. 779.37 P (ft/min).436 5148.114 2928 3. 8498.58.2 1429.56 563.133 322 325. 926.8.23 1543.56 68.153 3458 35. 9915.1.26 1661.667 6547.175 3724 375. 1623.23.29 1784.75 73.197 3999 4. 11331.44.32 194.842 752.22 4267 425. 1239.66.36 22.842 7958.245 4526 45. 12747.88.4 2139 1.29 8428.271 4793 475. 13456.9.44 2254 1.139 8878.298 549 5. 14164.31.48 2379 1.244 9373.325 5331 525. 14872.52.52 2491 1.351 9814.354 5581 55. 1558.74.57 2614.383 5858 575. 16288.95.61 2731 Pipe Size - 8".416 612 6. 16997.17.66 2851 P (ft/min).446 6388 625. 1775.38.71 2973.19 172.481 6662 65. 18413.6.76 388.2 1768.513 692 675. 19121.81.81 325.22 1835.549 7183 7. 1983.3.86 3325.23 193.586 745 725. 2538.24.92 3446.24 1973.624 7726 75. 21246.46.97 356.26 238.663 7976 775. 21954.67.13 3659.27 211.697 8258 8. 22662.89.19 383.29 2177.737 8521 825. 23371.1.115 3922.31 2245.778 8788 85. 2479.32.121 443.32 2314.82 959 875. 24787.54.127 4154.34 2379.869 939 9. 25495.75.134 4279.36 2449.912 9588 925. 2623.97.14 4393.37 2515.956 9845 95. 26912.18.147 451.39 2582 1. 28328.61.162 4747.43 2717 For data on other 15. 29745.4.176 499.47 2857 pipe sizes, contact 11. 31161.47.19 5226.51 2992 factory.

Typical Inlet Flows Occupancy Unit Flow (nlpm/scfm) Anesthesia Workroom inlet 4.25 /.15 Animal Research inlet 1.8 /.38 Autopsy inlet 1.8 /.38 Blood Donors inlet 2.8 /.1 Cardiac Catheterization inlet 2.8 /.1 Cast Room room 2.8 /.1 Critical Care bed 43 / 1.5 Decontamination inlet 14 /.5 Demonstration (Inservice) inlet 2.8 /.1 Dental Treatment inlet 57 / 2 Dental Operatory room 57 / 2 Exam & Treatment room 2.8 /.1 EENT. EEG, ECG, EMG room 2.8 /.1 Emergency / Triage room 85 / 3 Induction Room / Holding bed 2.8 /.1 Intensive Care bed 43 / 1.5 Isolation (Infectious Disease) bed 2.8 /.1 Laboratory iinlet 1.8 /.38 Minor Procedures room 2.8 /.1 Obstetrics: Delivery Room patient 28 / 1 Labor Room patient 28 / 1 Labor/Delivery/Recovery (LDR) patient 28 / 1 Labor/Delivery/Recovery/Postpartum (LDRP) patient 28 / 1 Postpartum Room patient 28 / 1 Postpartum Recovery patient 21 /.75 Infant Resuscitation inlet 14 /.5 Operating Rooms: Endoscopy/Cystoscopy room 57 / 2 Major O.R. room 1 / 3.5 Minor O.R. room 57 / 2 Orthology/Neurology O.R. room 1 / 3.5 Veterinary O.R. room 57 / 2 Observation bed 2.8 /.1 Pediatric: Pediatric ICU bed 34 / 1.2 Neonatal ICU (level 3/4) bed 14 /.5 Neonatal ICU (level 1/2) bed 14 /.5 Nursery bed 2.8 /.1 Pediatric and Adolescent bed 2.8 /.1 Psychiatric / Secure bed 2.8 /.1 Recovery (PACU) (per bed) bed 21 /.75 Patient Room room 2.8 /.1 Respiratory Therapy inlet 14 /.5 Sterilization / Central Supply inlet 14 /.5 Trauma Room room 85 / 3

Air Flow at 19 in.hgv - Copper L Tube Air Flow at 19 in.hgv - Copper L Tube Actual ConditionsStandard Condition Pressure Difference per 1 ft / Velocity Actual Conditions Standard Conditions Press. Diff. per 1 ft / Velocity At Pump Inlet 29.92 in.hga; 68 F; 36% RH Pipe Size - 2" At Pump Inlet 29.92 in.hga; 68 F; 36% RH Pipe Size - 6" acfm l/m scfm nl/m P (ft/min) For instructions for use, refer to acfm l/m scfm nl/m P (ft/min) For instructions for 38.36 186.66 14. 396.6.98 1781 Instructions worksheet 62.78 1776.2 22. 6232.29.72 3252 use, refer to 39.73. 14.5 41.76.14 1857 63.18. 23. 6515.58.78 349 Instructions 41.1. 15. 424.93.111 1934 PRESSURE LOSS 657.58. 24. 6798.87.84 3551 worksheet 42.47. 15.5 439.9.117 1974 IN INCHES OF MERCURY 684.98. 25. 782.15.9 3697 43.84. 16. 453.26.124 253 712.38. 26. 7365.44.97 3845 45.21. 16.5 467.42.13 2135 739.78. 27. 7648.73.13 3996 46.58. 17. 481.59.138 2176 767.18. 28. 7932.1.11 413 47.95. 17.5 495.75.145 226 794.58. 29. 8215.3.116 4287 49.32. 18. 59.92.152 231 821.98. 3. 8498.58.124 4427 5.69. 18.5 524.8.159 2388 849.38. 31. 8781.87.131 4589 52.6. 19. 538.24.167 2432 876.78. 32. 965.16.139 4733 53.43. 19.5 552.41.175 252 94.18. 33. 9348.44.146 4879 54.8. 2. 566.57.183 2565 931.58. 34. 9631.73.154 528 57.54. 21. 594.9.2 272 958.97. 35. 9915.1.162 5178 6.28. 22. 623.23.216 2842 986.37. 36. 1198.3.17 5332 63.2. 23. 651.56.234 2938 Pipe Size - 2½" 113.77. 37. 1481.59.178 5465 65.76. 24. 679.89.252 383 P (ft/min) 141.17. 38. 1764.87.187 5622 68.5. 25. 78.22.272 3183.97 264 168.57. 39. 1148.16.196 5759 71.24. 26. 736.54.289 3335.14 2163 195.97. 4. 11331.44.25 592 73.98. 27. 764.87.31 3439.111 223 1164.47. 425. 1239.66.227 6274 Pipe Size - 8" 76.72. 28. 793.2.33 3596.118 2332 1232.97. 45. 12747.88.252 6662 P (ft/min) 79.46. 29. 821.53.352 374.126 242 131.47. 475. 13456.9.277 711.73 414 82.2. 3. 849.86.372 3868.133 258 1369.96. 5. 14164.31.34 7395.8 4234 84.94. 31. 878.19.394 3979.141 2581 1438.46. 525. 14872.52.331 7763.88 4444 87.68. 32. 96.52.416 492.149 2654 156.96. 55. 1558.74.358 814.95 466 9.42. 33. 934.84.441 427.157 2728 1575.46. 575. 16288.95.387 8497.13 4865 93.16. 34. 963.17.462 4381.166 2841 1643.96. 6. 16997.17.416 8863.111 574 95.9. 35. 991.5.488 45.174 2918 1712.45. 625. 1775.38.448 9236.119 5287 98.64. 36. 119.83.512 462.183 2996 178.95. 65. 18413.6.479 9616.127 556 11.38. 37. 148.16.536 4741.192 374 1849.45. 675. 19121.81.136 5711 14.12. 38. 176.49.564 4864.21 3154 Pipe Size - 3" 1917.95. 7. 1983.3.145 592 16.86. 39. 114.82.589 4989.211 3235 P (ft/min) 1986.45. 725. 2538.24.154 6132 19.6. 4. 1133.14.617 5116.22 3317.95 2324 254.94. 75. 21246.46.136 6349 112.34. 41. 1161.47.642 5243.23 34.99 2382 2123.44. 775. 21954.67.173 655 115.8. 42. 1189.8.671 5373.24 3482.13 2441 2191.94. 8. 22662.89.183 6774 117.82. 43. 1218.13.7 554.249 3569.18 25 226.44. 825. 23371.1.194 6982 12.56. 44. 1246.46.727 5636.26 3655.112 2561 2328.94. 85. 2479.32.24 7193 123.3. 45. 1274.79.756 5771.271 3742.116 2621 2397.44. 875. 24787.54.214 748 126.4. 46. 133.12.788 596.281 383.121 2683 2465.93. 9. 25495.75.225 7626 128.78. 47. 1331.44.815 644.292 3919.125 2746 2534.43. 925. 2623.97.236 7826 131.52. 48. 1359.77.846 6183.33 49.13 289 262.93. 95. 26912.18.247 85 134.26. 49. 1388.1.878 6253.315 455.135 284 2671.43. 975. 2762.4.258 8256 137.. 5. 1416.43.91 6394.326 4147.14 295 2739.93. 1. 28328.61.27 8465 142.48. 52. 1473.9.975 6682.348 4333.15 335 288.42. 125. 2936.83.284 9677 147.96. 54. 1529.75 1.42 691.372 4475.16 3135 2876.92. 15. 29745.4.296 889 153.44. 56. 1586.4 1.111 7199.397 4669.17 3271 2945.42. 175. 3453.26.38 917 158.92. 58. 1643.6 1.18 7427.422 4816.181 3374 313.92. 11. 31161.47.32 934 164.4. 6. 1699.72 1.251 7659.448 4967.192 3479 382.42. 1125. 31869.69.332 9526 169.88. 62. 1756.37 1.324 7973.474 517.23 3622 175.36. 64. 1813.3 1.44 8213.5 5326.215 3731 28.33 18.84. 66. 1869.69 1.478 8456.53 5483.228 3842 186.32. 68. 1926.35 1.562 873.557 5644.239 3954 191.79. 7. 1983. 1.639 8953.588 586.251 467 Pipe Size - 4" 197.27. 72. 239.66 1.726 928.616 5971.265 4183 P (ft/min) 22.75. 74. 296.32 1.85 9465.648 6138.277 43.73 2446 28.23. 76. 2152.97.677 637.291 4418.76 2513 213.71. 78. 229.63.79 6479.34 4539.8 2582 219.19. 8. 2266.29.739 6653.318 4661.83 2651 224.67. 82. 2322.95.773 6829.331 4784.87 2721 23.15. 84. 2379.6.87 77.346 499.91 2792 235.63. 86. 2436.26.842 7127.361 4994.95 284 241.11. 88. 2492.92.877 731.376 5122.98 2913 246.59. 9. 2549.58.98 7495.39 5251.12 2986 252.7. 92. 266.23.945 7619.47 5338.16 336 257.55. 94. 2662.89.981 788.421 547.111 3111 263.3. 96. 2719.55 1.18 7999.437 563.114 3187 268.51. 98. 2776.2 1.56 8127.453 5693.119 3238 273.99. 1. 2832.86 1.94 8321.47 583.123 3316 287.69. 15. 2974.5 1.194 8718.513 617.134 3474 31.39. 11. 3116.15 1.297 9423.555 6392.145 3635 315.9. 115. 3257.79 1.395 9538.6 6682.157 38 328.79. 12. 3399.43.647 6979.169 397 342.49. 125. 3541.8.695 7282.182 4142 356.19. 13. 3682.72.744 7592.195 4318 369.89. 135. 3824.36.794 7855.28 4468 383.59. 14. 3966.1.845 8177.221 4651 397.29. 145. 417.65.92 845.235 486 41.99. 15. 4249.29.955 8728.25 4964 424.69. 155. 439.93 1.14 91.265 5124 438.39. 16. 4532.58 1.69 9296.281 5287 452.9. 165. 4674.22 1.13 9587.295 5453 465.79. 17. 4815.86.312 5621 479.49. 175. 4957.51.327 5791 493.19. 18. 599.15.344 5965 56.89. 185. 524.79.362 614 52.59. 19. 5382.44.378 6283 534.29. 195. 5524.8.396 6463 547.99. 2. 5665.72.414 669 575.38. 21. 5949.1.452 6943 62.78. 22. 6232.29.49 7286 63.18. 23. 6515.58.527 7637 657.58. 24. 6798.87.571 7956 684.98. 25. 782.15.612 8282 712.38. 26. 7365.44.655 8614 739.78. 27. 7648.73.698 8953 767.18. 28. 7932.1.746 9254 794.58. 29. 8215.3.791 965