PITOT TUBE TRAVERSE, RECTANGULAR DUCT Job. Job No.. Date

Location. System

Location of Duct. i SP

Duct Size

Duct Area Sq Ft

Required CFM Required FPM

Actual CFM ActualFPM

Percent of Design: Actual CFM Required CFM

B

D

Column Totals

o

• i n i t i a l • Final Readings

ml

DUCT

1

DUCT W I D T H T O T A L ] ,

Divide recommended spacing into duct v A L L COLUMNS'- ( width for equal spacing between points ~ y of readings and write in each space. / Total No.\ Split remainder in half for spacing at \f points,

= Total of a l l

Columns

) Average FPM sides of duct and write i n .

3. To determine the actual average FPM, total the FPM in each column, add the columns together and divide by total number of points in traverse.

CONVERTING VP INTO FPM

RECOMMENDED EQUAL SPACING BETWEEN POINTS OF READING

Width Range Spacing of Duct Inches in inches

8-14 5 lS -24 6 25-36 7 37-48 8 4 9 - 6 0 9 61-72 10

73-64 11 85-96 12

Wpnrifis E n a i n e e r i n q and C o n t r a c t i n g S e r v i c e s

V P F P M V P F P M V P F P M V P F P M V P F P M

.01 400 .31 2230 .61 3127 .91 3821 1.21 4405

.02 566 .32 2260 .62 3153 .92 3842 1.22 4423

.03 693 .33 2301 .63 3179 .93 3863 1.23 4442

.04 801 .34 2335 .64 3204 .94 3884 1.24 4460

.05 895 .35 2369 .65 3229 .95 3904 1.25 4478

.06 981 36 2403 .66 3254 96 3924 1.26 4495

.07 1060 .37 2436 67 3279 .97 3945 1.27 4513

.08 1133 .38 2469 58 3303 98 3 % 5 1.28 4531

.09 1201 ,39 2501 ,69 3327 .99 3985 1.29 4549

.10 1266 .40 2533 ,70 3351 1.00 4005 1.30 4566

.11 1328 .41 2563 .71 3375 1 0 1 4025 1.31 4583

.12 1387 .42 2595 .72 3398 1.02 4045 1.32 4601

.13 1444 .43 2626 73 3422 1.03 4064 1.33 4619

.14 1498 .44 2656 .74 3445 1.04 4084 1.34 4636

.15 1551 .45 2687 .75 3468 1.05 4103 1.35 4653

.16 1602 .46 2716 .76 3491 1.06 4123 1.36 4671

.17 1651 .47 2746 .77 3514 1.07 4142 1.37 4688

.18 1699 .48 2775 .78 3537 1.08 4162 1.38 4705

.19 1746 .49 2804 .79 3560 1.09 4181 1.39 4722

.20 1791 ,50 2832 .80 3582 1.10 4200 1.40 4739

.21 1835 ,51 2860 .81 3604 1.11 4219 1.41 4756 22 1879 ,52 2888 ,32 3625 1.12 4238 1.42 4773

.23 1921 .53 2916 ,83 3657 1.13 4257 1-43 4790

.24 1962 ,54 2943 .84 3669 1.14 4276 1.44 4806

.25 2003 55 2970 .85 3690 1.15 4295 1.45 4823

.26 2042 ,56 2997 .86 3709 1.16 4314 1.46 4840

.27 2081 ,57 3024 .87 3729 1.17 4332 1,47 4856

.28 2119 ,58 30 5C 38 3758 1.18 4350 1 48 4873

.29 2157 ,59 3076 .89 3779 1.19 4368 1,49 4889

30 2193 60 3102 .90 3800 1.20 4386 1-50 4905

7/80 Form TAB 203

OUTLET AIR BALANCE REPORT Project, Job No. Date

System

Instniments Used JTested by:.

ROOM AREA SERVED

OPEMING REQUIRED

No. Model Size \ Vel CFM

PRELIMINARY FINAL

Vel CFM