Flame arresters are installed on such equipment to prevent potential hazards associated with flammable and explosive materials. ... A flame arrester works by forcing a flame front through very narrow channels. Gas travels through the device, but the passages are so narrow that the flame can no longer be maintained.

Do I need a flame arrestor?

If the flame could occur from either direction then a bi-directional flame arrester is required. In-line flame arresters can be either deflagration or detonation arresters depending on the conditions under which they are to be used.

What is the use of flame arrester?

By definition, a flame arrester is a passive device that allows gas to pass through it but stops the propagation of a flame.