FRICTION LOSS EQUIVALENCE TABLES
3" VENTED MODELS |
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| 2" VENTED MODELS |
| AFTER THE FIRST 10' OF 3" ONLY | |||||||||||||
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| 4" EQUIVALENT TABLE | |||||||||||||||
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FITTING |
| EQUIVALENT |
| FITTING |
| EQUIVALENT |
| FITTING |
| EQUIVALENT | |||||||||
DESCRIPTION |
| FEET OF PIPE |
| DESCRIPTION |
| FEET OF PIPE |
| DESCRIPTION |
| FEET OF PIPE | |||||||||
3" 90˚ |
| 5' |
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| 2" 90˚ |
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| 5' |
| 4" 90˚ |
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| 3' | ||||
3" 45˚ |
| 3' |
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| 2" 45˚ |
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| 3' |
| 4" 45˚ |
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| 1' | ||||
3" Coupling |
| 0' |
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| 2" Coupling |
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| 0' |
| 4" Coupling |
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| 0' | ||||||
3" Tee |
| 0' |
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| 2" Tee |
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| 0' |
| 4" Tee |
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| 0' | ||||
3" Pipe |
| 1' = 1' |
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| 2" Pipe |
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| 1' = 1' |
| 4" Pipe |
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| 1' = 1' | |||||
3" Concentric vent kit |
| 3' |
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| 2" Concentric vent kit |
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| 3' |
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3" V1000 vent kit |
| 0' |
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VENTING EXAMPLES (NOTE: SHOWN AS INTAKE & EXHAUST PIPE FITTINGS ADDED TOGETHER | |||||||||||||||||||
| * = MINIMUM VENT LENGTH |
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| ** = MAXIMUN VENT LENGTH | ||||||||||||
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| GRAND TOTAL |
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| TOTAL COMBINED |
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| EQUIVALENT |
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| VENT LENGTH |
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| VENT LENGTH |
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| FRICTION LOSS |
| TOTAL FRICTION | (FEET) WITH |
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| (FEET) INTAKE & |
| QTY. OF 90˚ |
| (FEET) FOR EACH |
| LOSS FOR | FITTING FRICTION |
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| EXHAUST |
| ELBOWS |
| ELBOW |
| ELBOWS | LOSS ADDED |
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| *12 |
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| 2 |
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| 5 |
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| 10 |
| 22 |
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| 20 |
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| 2 |
|
| 5 |
|
| 10 |
| 30 |
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| 20 |
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| 3 |
|
| 5 |
|
| 15 |
| 35 |
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| 20 |
|
| 4 |
|
| 5 |
|
| 20 |
| 40 |
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| 20 |
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| 5 |
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| 5 |
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| 25 |
| 45 |
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| 20 |
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| 6 |
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| 5 |
|
| 30 |
| 50 |
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| 20 |
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| 7 |
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| 5 |
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| 35 |
| 55 |
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| 20 |
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| 8 |
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| 5 |
|
| 40 |
| 60 |
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| 20 |
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| 9 |
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| 5 |
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| 45 |
| 65 |
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| 20 |
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| 10 |
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| 5 |
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| 50 |
| 70 |
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| 20 |
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| 11 |
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| 5 |
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| 55 |
| 75 |
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| 20 |
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| 12 |
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| 5 |
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| 60 |
| 80 |
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| 20** |
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| 13 |
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| 5 |
|
| 65 |
| 85** |
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| 30 |
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| 3 |
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| 5 |
|
| 15 |
| 45 |
| |||||
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| 30 |
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| 4 |
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| 5 |
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| 20 |
| 50 |
| |||||
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| 30 |
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| 5 |
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| 5 |
|
| 25 |
| 55 |
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| 30 |
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| 6 |
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| 5 |
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| 30 |
| 60 |
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| 30 |
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| 7 |
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| 5 |
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| 35 |
| 65 |
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| 30 |
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| 8 |
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| 5 |
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| 40 |
| 70 |
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| 30 |
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| 9 |
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| 5 |
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| 45 |
| 75 |
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| 30 |
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| 10 |
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| 5 |
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| 50 |
| 80 |
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| 30** |
|
| 11 |
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| 5 |
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| 55 |
| 85** |
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| 40 |
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| 3 |
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| 5 |
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| 15 |
| 55 |
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| 40 |
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| 4 |
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| 5 |
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| 20 |
| 60 |
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| 40 |
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| 5 |
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| 5 |
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| 25 |
| 65 |
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| 40 |
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| 6 |
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| 5 |
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| 30 |
| 70 |
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| 40 |
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| 7 |
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| 5 |
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| 35 |
| 75 |
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| 40 |
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| 8 |
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| 5 |
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| 40 |
| 80 |
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| 40** |
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| 9 |
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| 5 |
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| 45 |
| 85** |
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| 50 |
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| 3 |
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| 5 |
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| 15 |
| 65 |
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| 50 |
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| 4 |
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| 5 |
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| 20 |
| 70 |
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| 50 |
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| 5 |
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| 5 |
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| 25 |
| 75 |
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| 50 |
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| 6 |
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| 5 |
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| 30 |
| 80 |
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| 50** |
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| 7 |
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| 5 |
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| 35 |
| 85** |
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| 60 |
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| 3 |
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| 5 |
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| 15 |
| 75 |
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| 60 |
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| 4 |
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| 5 |
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| 20 |
| 80 |
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| 60** |
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| 5 |
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| 5 |
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| 25 |
| 85 |
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| 70** |
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| 3 |
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| 5 |
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| 15 |
| 85 |
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10
