Oberland Mangold · Environmental & Energy Technology
Flame arresters
Maximum safety with minimal pressure loss
Oberland Mangold flame arresters are made from high-alloy, corrosion-resistant metal foil strips and, thanks to a precisely adjusted gap width, offer maximum safety with minimal pressure loss. They are used in areas where explosive gas-air mixtures occur, such as marine petrol engines, combined heat and power plants and tank installations. In hydrogen applications, too, our flame arresters offer the highest safety through specially adapted gap widths.

Areas of application
- Chemical industry
- Oil and gas industry
- Food and pharmaceutical industry
- Biogas plants
- Refineries
- Pharmaceutical industry
- Burner and heating systems
- Exhaust and venting systems
- Engines and gas turbines
- Explosion-protected areas
Explosion groups
Classification of gases according to their maximum experimental safe gap into the respective explosion groups per EN ISO 16852, NEC.
Certification is carried out by the customer

| Explosion group | Max. experimental safe gap [mm] | Gas mixture |
|---|---|---|
| IIA1* | ≥ 1.14 | |
| IIA | > 0.90 | |
| IIB1 | ≥ 0.85 | |
| IIB2 | ≥ 0.75 | |
| IIB3 | ≥ 0.65 | |
| IIB | ≥ 0.5 | |
| IIC | < 0.5 |
Classification of gases according to their maximum experimental safe gap into the respective explosion groups per EN ISO 16852, NEC. Certification is carried out by the customer.
