Bidirectional flame arrester
In-line stable, unstable detonation
Details
A detonation flame arrester is used in all cases where sufficient “run-up” distance exist for a detonation to develop, depending on the lenght of piping and pipe configuration on the unprotected side of the arrester and the restriction on the protected side of the arrester.
Number of element depends on design as well as explosion group, arrester elements are made of corrugated strips coiled into circular element housing.
Tested and certified to EN12874 in accordance with ATEX directive 94/9/EC approved by indipendent, third party approval agencies.
Features
SIZE: 1 “ (25 mm) through 16” (400 mm)
CONSTRUCTED: carbon steel, stainless steel, additional
metals and coatings
FLANGE RATING: ANSI 150, PN16
EXPLOSION GROUPS: I - IIA - IIB - IIB1 - IIB2 - IIB3
CONFORMING ATEX 94/9/EC
TESTED EN12874
Products
AD IIA
AD IIB3
Installation and maintenance
• deflagration
• endurance burning
• stable, unstable detonation upon request
Number of flame element discs depends on max. allowable operating pressure.
Materials
| DESCRIPTION | STANDARD MATERIALS OF CONSTRUCTION | ||
| CARBON STL | SS | SPECIAL | |
| housing | CS | SS | SS/HAST |
| gasket | NON-ABS | NON-ABS | NON-ABS |
| housing, element | CS | SS | SS |
| handle/lifting lug | CS | SS | SS |
| element, flame | SS | SS | HAST |
| spacer | CS | SS | SS |
| stud, nut, hex, lock washer | CS | SS | SS |
| clamping screw | SS | SS | SS |
Dimensions
| DN | 25 | 40 | 50 | 80 | 100 | 150 | 200 | 250 | 300 | 350 | 400 |
| A | 180 | 180 | 212 | 260 | 327 | 404 | 470 | 568 | 930 | 930 | 930 |
| B | 195 | 195 | 263 | 304 | 348 | 488 | 565 | 625 | 685 | 897 | 897 |
| code | 8027 | 8043 | 8060 | 8090 | 8125 | 2906 | 2920 | 2954 | 2969 | 3030 | 3050 |
Dimensions shown are for reference only. Contact factory for certified drawings.