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Flame Arrestors

A Flame Arrester also spelled arrestor is a device which allows gas to pass through it but stops a flame in order to prevent a larger fire or explosion. There is an enormous variety of situations in which flame arresters are applied.

flame arresters of numerous varieties have been applied in many industries. All of them operate on the same principle: removing heat from the flame as it attempts to travel through narrow passages with walls of metal or other heat-conductive material. For instance, flame arresters made by layers of metal ribbons with crimped corrugations.
Flame arresters are used in many industries, including refining, pharmaceutical, chemical, petrochemical, pulp and paper, oil exploration and production, sewage treatment, landfills, mining, power generation, and bulk liquids transportation. In some cases, the flames involve exothermic (heat-producing) reactions other than oxidation. Processes which generate the combustible or reactive gases include blending, reacting, separation, mixing, drilling, and digesting. These processes involve numerous equipment configurations and gas mixtures.

MATERIAL OF CONSTRUCTION

CODE AL C.I. C.S. S.S. 304 S.S. 316
BODY ALUMINIUM A 126 CL B A 126 WCB A 351 CF 8 A 351 CF 8M
ELEMENT RING S.S. 304 S.S. 304 S.S. 304 S.S. 304 S.S. 316
ELEMENT S.S. 316 L S.S. 316 L S.S. 316 L S.S. 316 L S.S. 316 L

FOR FLAME IN LINE ARRESTOR

ALL DIMENSIONS ARE IN MM.
SIZE 2” 3” 4” 6” 8” 10” 12”
DN 50 80 100 150 200 250 300
A 233 260 270 335 360 380 470
B 220 250 287 450 550 610 850

FOR FLAME END OF LINE ARRESTOR

SIZE 2” 3” 4” 6” 8” 10” 12”
DN 50 80 100 150 200 250 300
C 230 283 283 410 500 650 750
D 210 235 240 290 340 360400


TYPE / FLOW FLAME ARRESTER NM3/H X 1000 AIR
DIA 50 (2”) 80 (3”) 100 (4”) 150 (6”) 200 (8”) 250 (10”) 300 (12”)
DIFF. PRESS mb(p)
3 0.09 0.18 0.28 1.02 1.32 1.75 3.14
4 0.10 0.20 0.31 1.13 1.45 1.93 3.45
5 0.11 0.22 0.34 1.24 1.60 2.12 3.80
10 0.15.30 .48 1.73 2.23 2.96 5.32
15 0.18 0.37 0.57 2.07 2.68 3.56 6.38
20 0.21 0.43 0.67 2.43 3.14 4.16 7.47
25 0.25 0.49 0.77 2.80 3.61 4.79 8.59
30 0.27 0.53 0.83 3.02 3.89 5.17 9.28
35 0.28 0.56 0.87 3.17 4.09 5.43 9.74
NOTE: - DIMENSIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE