3
In order to ensure a satisfactory function of the machine exhaust system, the subsequent pipe system that is installed in the laundry, should as minimum be dimensioned according to the following guidelines. If the pressure loss in the piping system is increased as a result of dimensioning faults, this will cause a reduction of the exhaust and thus the machine capacity.
In case of short distances between the ironer and the outlet to the outside, i.e. less than 15m including allowance for bends, the exhaust pipe can be made as a channel with diameter 125mm for all machine types.
In case of longer distances, we recommend to use a larger pipe diameter. When judging the exhaust channel, see the following tables that deal with pressure loss and the dynamic pressure by different pipe dimensions and also deal with the equivalent pipe lengths for different part elements in an exhaust channel.
Dynamic pressure (Pd) in [Pa] and specific pressure loss (∆p) in [Pa/m] dependent on volume flow in m³/h and pipe diameter (dia) in mm. S is the speed in m/s.
Diameter |
| 100 |
|
| 125 |
|
| 150 |
|
Volume | Pd | ∆p | S | Pd | ∆p | S | Pd | ∆p | S |
m³/hour | Pa | Pa | m/s | Pa | Pa | m/s | Pa | Pa | m/s |
250 | 47 | 14 | 8,8 | 19 | 4 | 5,7 | 9 | 2 | 3,9 |
350 | 93 | 26 | 12,4 | 38 | 8 | 7,9 | 18 | 3 | 5,5 |
450 | 153 | 42 | 15,9 | 63 | 13 | 10,2 | 30 | 5 | 7,1 |
550 | 229 | 62 | 19,5 | 94 | 19 | 12,4 | 45 | 7 | 8,6 |
650 | 320 | 85 | 23,0 | 131 | 26 | 14,7 | 63 | 10 | 10,2 |
750 | 426 | 112 | 26,5 | 174 | 34 | 17,0 | 84 | 13 | 11,8 |
850 | 547 | 143 | 30,1 | 224 | 44 | 19,2 | 108 | 17 | 13,4 |
950 | 683 | 178 | 33,6 | 280 | 54 | 21,5 | 135 | 21 | 14,9 |
1050 | 834 | 217 | 37,1 | 342 | 66 | 23,8 | 165 | 25 | 16,5 |
1150 | 1001 | 259 | 40,7 | 410 | 79 | 26,0 | 198 | 30 | 18,1 |
1250 | 1182 | 305 | 44,2 | 484 | 92 | 28,3 | 234 | 35 | 19,6 |
1350 | 1379 | 355 | 47,7 | 565 | 107 | 30,6 | 272 | 41 | 21,2 |
|
|
|
|
|
|
|
|
|
|
Diameter |
| 160 |
|
| 180 |
|
| 200 |
|
Volume | Pd | ∆p | S | Pd | ∆p | S | Pd | ∆p | S |
m³/hour | Pa | Pa | m/s | Pa | Pa | m/s | Pa | Pa | m/s |
250 | 7 | 1 | 3,5 | 5 | 1 | 2,7 | 3 | 0 | 2,2 |
350 | 14 | 2 | 4,8 | 9 | 1 | 3,8 | 6 | 1 | 3,1 |
450 | 23 | 4 | 6,2 | 15 | 2 | 4,9 | 10 | 1 | 4,0 |
550 | 35 | 5 | 7,6 | 22 | 3 | 6,0 | 14 | 2 | 4,9 |
650 | 49 | 7 | 9,0 | 30 | 4 | 7,1 | 20 | 2 | 5,7 |
750 | 65 | 10 | 10,4 | 41 | 5 | 8,2 | 27 | 3 | 6,6 |
850 | 83 | 12 | 11,7 | 52 | 7 | 9,3 | 34 | 4 | 7,5 |
950 | 104 | 15 | 13,1 | 65 | 8 | 10,4 | 43 | 5 | 8,4 |
1050 | 127 | 18 | 14,5 | 79 | 10 | 11,5 | 52 | 6 | 9,3 |
1150 | 153 | 22 | 15,9 | 95 | 12 | 12,6 | 63 | 7 | 10,2 |
1250 | 180 | 25 | 17,3 | 113 | 14 | 13,6 | 74 | 8 | 11,1 |
1350 | 210 | 29 | 18,7 | 131 | 16 | 14,7 | 86 | 9 | 11,9 |
18
