The Elmac Technologies® LEB Series of In-Line Deflagration Arresters can be designed and manufactured to meet high pressure, high temperature and short-time burn requirements.
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The Elmac Technologies® LEA Series of In-Line Deflagration Flame Arresters are designed to prevent the propagation of flames in piping systems. By locating the flame arrester in close proximity to the potential source of ignition, any flame or explosion is confined to the immediate area. LEA flame arrester models include high pressure, high temperature and short-time burn variants.
For a deflagration with no stabilised flame, the combustion products are cooled at the element surface by heat dissipation. This prevents continuation of the combustion process through the flame arrester and into the protected line. In the event that a flame stabilises on the flame arrester element, a sudden increase in temperature will be detected by a monitoring system and secondary protection measures are activated to stop the flow of the flammable mixture.
Elmac LEA Series of In-Line Flame Arresters are ATEX certified for Explosion Groups IIA1 & IIA.
| Size NB (mm) | Maximum operating pressure (bar(a)) | Maximum operating temperature (°C) | 15 - 20 | 25 - 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall length A (mm) | 1.20 | +60 | 317 | 337 | 317 | 323 | 401 | 413 | 457 | 591 | 577 | 903 | 1221 | 1239 | 980 | 1090 |
| 1.45 | +60 | 990 | 1100 | |||||||||||||
| 1.45 | +160 | 327 | 347 | 327 | 333 | 411 | 423 | 467 | 601 | 587 | 913 | 1231 | 1249 | |||
| 1.50 | +60 | 327 | 347 | 327 | 333 | 411 | 423 | 467 | 601 | 587 | 913 | 1231 | 1249 | |||
| 1.60 | +60 | 327 | 347 | 327 | 333 | 411 | 423 | 467 | ||||||||
| Diameter ØD (mm) | 229 | 229 | 229 | 229 | 254 | 279 | 343 | 483 | 483 | 597 | 698 | 813 | 928 | 1062 | ||
| Centre to top of temperature probe (short-time burn models) (mm) | 325 | 320 | 320 | 315 | 325 | 355 | 390 | 470 | 470 | 525 | 600 | 680 | 755 | 815 | ||
| Approx Wt (kg) | 3 | 24 | 23 | 25 | 32 | 41 | 64 | 120 | 123 | 216 | 311 | 417 | 650 | 870 |
| Feature | Standard Fitting | Options* |
|---|---|---|
| Arrester Materials | Carbon Steel or Stainless Steel | Low Temperature Carbon Steel, Duplex Steel, Hastelloy |
| Element Material | 316L Stainless Steel | Hastelloy |
| Connections | ANSI 150 Flange | PN16 Flange, Female BSP/NPT, Male BSP/NPT |
| Arrester Finish | Painted (Carbon Steel Arresters) | Offshore Paint, PTFE Coated, Others on Request |
The Elmac Technologies® LEB Series of In-Line Deflagration Arresters can be designed and manufactured to meet high pressure, high temperature and short-time burn requirements.
The Elmac Technologies® LCB Series of In-Line Deflagration Flame Arresters can be designed and manufactured to meet high pressure, high temperature and short-time burn requirements.
The Elmac Technologies® MB-IB Series of Microbore In-Line Deflagration Flame Arresters are specially designed for the protection of gas sampling equipment where flammable vapours are present. Suitable for use in applications in gas explosion group IIB3.
The Elmac Technologies® DFC Series of In-Line Deflagration Flame Arresters are designed specifically for IIC explosion group applications.
