® 35 The grill chosen, the diameters of the pipes and their relative gradient is determined with the help of table 1 Referring to norm UNI EN 12056-3 the capacities referring to new pipes have been reduced to take into account the partial obstruction of pipes mainly due to low gradient, and the build up of material on the walls as a consequence of transporting turbid water. Also it is not advisable to use pipes with a diameter less than 100 mm for horizontal drainage, especially in the presence of turbid waters or waters transporting waste. upergr i g l i a ® CAPAC I TY IN L I TRES/SECOND OF THE GR I L L S C A P A C I T Y i n l i t r e / s e c . SG20 SGP20 SG30 SGP30 SG40 SGP40 SG45 SGP45 SG55 SGP55 1,6 2,6 3,5 4,0 4,4 A R T I C L E DIAMETER OF PVC PIPES IN MM. 40 50 63 75 80 100 125 140 160 200 250 315 0,34 0,71 1,43 2,39 2,87 5,51 10,37 13,79 19,44 33,94 60,10 108,89 0,41 0,87 1,75 2,93 3,52 6,75 12,69 16,89 23,81 41,57 73,61 133,36 0,54 1,12 2,26 3,78 4,54 8,72 16,39 21,80 30,74 53,66 95,03 172,18 0,76 1,58 3,14 5,34 6,41 12,33 23,18 30,83 43,48 75,89 134,40 243,49 3 % 5 % 10 % 0,5% 0,17 0,35 0,71 1,19 1,43 2,76 5,18 6,89 9,72 16,92 30,05 54,44 0,24 0,50 1,01 1,61 2,03 3,90 7,33 9,75 13,75 24,00 42,50 77,00 1 % 0,29 0,61 1,24 2,07 2,49 4,78 8,98 11,94 16,84 29,39 52,05 94,30 1,5% 2 % C A PA C I T Y I N L I T R E S / S E C O F P I P E S W I T H D I F F E R E N T G R A D I E N T S E T T I NG S P E R C E N T A G E G R A D I E N T TA B L E 2 TA B L E 1 SG3050 SGP3050 3,5 SG4050 SGP4050 3,9 D R A I N I N G C A L C U L A T I O N S A N D T E C H N I C S ® PATENTED
RkJQdWJsaXNoZXIy MTIzMjc4Nw==