(1) the explosion resistance is qualified, the fire can be stopped for 13 consecutive tests.
Fire resistance qualified, fire resistance, 1 hour without tempering.
Nominal diameter of nozzleDN |
structure size(mm) |
Nominal diameter of nozzleDN |
structure size(mm) |
||
D |
L |
D |
L |
||
15 |
215 |
338 |
65 |
335 |
460 |
20 |
215 |
344 |
80 |
335 |
460 |
25 |
215 |
350 |
100 |
335 |
460 |
32 |
280 |
376 |
125 |
440 |
506 |
40 |
280 |
376 |
150 |
440 |
510 |
50 |
280 |
376 |
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