Recommended Sizes of Explosion Doors or Draught Stabilisers

**Recommended Sizes of Explosion Doors or Draught Stabilisers for Oil Firing Installations Table**
Cross-sectional area of chimney	Release opening of stabiliser, approx., in	Cross-sectional area of chimney	Release opening of stabiliser, approx., mm
40-80	6×9	0.025-0.050	150×230
80-200	8×13	0.050-0.125	200×330
200-300	13×18	0.125-0.200	330×450
300-600	16×24	0.200-0.400	400×600
600-1500	24×32	0.400-1.000	600×800