HERZ - Balancing Valves Cast Iron

HERZ STRÖMAX 4218 GMFDN 25 32 40 50 65 80 100 125 150kvs 12,2 17,3 28,6 38 60,3 68,5 99,55 186,58 279,05Position kv kv kv kv kv kv kv kv kv0,5 0,35 1,15 1,40 2,70 8,36 11,50 0,00 1,58 8,751,0 0,75 1,90 2,50 7,80 11,56 15,90 12,35 4,36 17,501,5 1,15 2,65 3,60 12,90 14,76 20,30 18,04 10,72 26,082,0 1,90 3,40 4,70 18,60 17,80 24,69 23,74 17,08 34,662,5 4,10 4,15 5,95 22,60 20,15 27,74 29,84 20,27 38,273,0 6,30 4,90 7,20 27,80 22,50 30,60 35,96 23,45 41,883,5 7,70 7,35 9,85 29,30 26,55 36,10 42,56 24,93 44,534,0 9,10 9,80 12,55 31,60 31,60 41,70 49,20 26,41 47,174,5 9,80 12,40 16,05 33,60 38,10 50,70 51,10 28,09 50,345,0 10,50 15,00 19,70 35,50 43,90 60,30 53,00 29,77 53,505,5 10,55 15,80 21,60 37,15 47,40 62,00 57,50 32,57 57,436,0 10,65 16,60 23,50 37,84 51,00 63,78 61,96 35,37 61,366,5 10,70 25,15 53,85 65,88 66,86 38,62 66,147,0 11,50 26,80 56,70 67,80 71,81 41,87 70,927,5 11,53 27,30 58,50 77,11 46,01 76,308,0 11,53 27,80 60,30 82,42 50,14 81,688,5 28,20 87,77 54,94 87,879,0 28,60 93,20 59,74 94,069,5 99,55 65,47 100,5210,0 71,19 106,9810,5 87,53 114,7411,0 85,87 122,5011,5 95,99 132,7212,0 106,10 142,9312,5 117,92 155,8613,0 129,73 168,7913,5 141,12 181,9814,0 152,51 195,1714,5 162,60 207,6915,0 172,69 220,2115,5 179,64 233,0516,0 186,58 245,8816,5 255,7217,0 265,5617,5 272,3118,0 279,05Flow measuring orifice platesFunctionThe orifice plate made ​of stainless steel PN 16 and has two measuringvalves. The design of the orifice is in accordance with BS 1042,the performance curve characteristics are according to BS 7350.cField of applicationHERZ orifice plates are installed in the circuits of the hot water centralheating and cooling systems, and ensure the balance of the hydrauliccircuits.The orifice plates are used either in a supply or in a return pipe.They are either closely coupled with a balancing valve HERZ to forma complete set or used in connection with an isolation valve HERZ.The balancing is accomplished by setting the control valve during themeasurements of the pressure drop at orifice.Maximum operating temperature 110 °CMaximum operating pressure 16 barAøBBenefits :– Ease of use because of the use of only one characteristic of theorifice plate.– Can be installed separately, e.g. as a fixed orifice.Order numberOrifice plateDN A B C kv kg1 4000 07 65 20 158 160 100,7 1,91 4000 08 80 20 166 170 133,8 2,21 4000 09 100 20 164 176 237,7 2,71 4000 10 125 20 194 191 339 3,21 4000 11 150 20 220 204 511 3,81 4000 12 200 20 275 232 858 5,51 4000 13 250 20 331 258 1235 7,01 4000 14 300 20 386 287 1793 10,0c6