SR type expansion boxes are connection elements for ventilation grilles and diffusers. They are manufactured with an upper or side nipple connecting bracket, optionally equipped with a throttle. On request, SR can be made in an insulated version.
material:
standard SR are made of galvanized sheet. On request, they can be made of stainless steel and varnished in any color from the RAL palette.
Standard sizes in the table . On request, the manufacturer also provides other, non-standard dimensions.
Size | A | B | H | d1 | L2 | E | pow. [m2] | thickness [mm] | weight [kg] |
0 | 190 | 190 | 250 | 125 | 40 | 88 | 0,26 | 0,5 | 1,04 |
1 | 245 | 245 | 320 | 160 | 40 | 112 | 0,42 | 0,5 | 1,67 |
1 | 245 | 245 | 400 | 200 | 40 | 140 | 0,50 | 0,5 | 2,01 |
2 | 301 | 301 | 320 | 160 | 40 | 112 | 0,53 | 0,5 | 2,10 |
2 | 301 | 301 | 400 | 200 | 40 | 140 | 0,63 | 0,5 | 2,51 |
3 | 357 | 357 | 320 | 160 | 40 | 112 | 0,64 | 0,6 | 3,07 |
3 | 357 | 357 | 400 | 200 | 40 | 140 | 0,76 | 0,6 | 3,65 |
4 | 412 | 412 | 320 | 160 | 40 | 112 | 0,76 | 0,6 | 3,64 |
4 | 412 | 412 | 400 | 200 | 40 | 140 | 0,90 | 0,6 | 4,30 |
4 | 412 | 412 | 500 | 250 | 60 | 175 | 1,08 | 0,6 | 5,19 |
5 | 469 | 469 | 400 | 200 | 40 | 140 | 1,04 | 0,6 | 5,00 |
5 | 469 | 469 | 500 | 250 | 60 | 175 | 1,25 | 0,6 | 6,01 |
5 | 469 | 469 | 630 | 315 | 60 | 221 | 1,51 | 0,6 | 7,24 |
6 | 498 | 498 | 500 | 250 | 60 | 175 | 1,34 | 0,6 | 6,44 |
6 | 498 | 498 | 630 | 315 | 60 | 221 | 1,61 | 0,6 | 7,74 |
6 | 498 | 498 | 710 | 355 | 60 | 249 | 1,78 | 0,6 | 8,54 |
7 | 598 | 598 | 500 | 250 | 60 | 175 | 1,66 | 0,7 | 9,30 |
7 | 598 | 598 | 630 | 315 | 60 | 221 | 1,98 | 0,7 | 11,11 |
7 | 598 | 598 | 710 | 355 | 60 | 249 | 2,18 | 0,7 | 12,22 |
7 | 598 | 598 | 800 | 400 | 80 | 280 | 2,43 | 0,7 | 13,62 |
8 | 623 | 623 | 500 | 250 | 60 | 175 | 1,74 | 0,8 | 11,16 |
8 | 623 | 623 | 630 | 315 | 60 | 221 | 2,08 | 0,8 | 13,31 |
8 | 623 | 623 | 710 | 355 | 60 | 249 | 2,29 | 0,8 | 14,63 |
8 | 623 | 623 | 800 | 400 | 80 | 280 | 2,54 | 0,8 | 16,28 |
UK = 20 (wringing)
Formulas for calculations:
– circuit O = 2 (A + B)
– area F = 2 (A + B) H + AxB + πd1L2