VALVE WITH FLAME ARRESTER OF BELT TYPE Russian patent published in 2013 - IPC A62C3/04 

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to a valve with a flame arrester of belt type, comprising a body, in which there is a flame arrester of cassette type and a valve arranged in the upper part of the body, besides, the body is made from two parts, at the same time the lower part is made in the form of a support flange with a truncated cone, and the upper one - in its turn comprises two elements: the lower one in the form of a truncated cone facing the flame arrester and the upper cylindrical form, in which a breathing valve is arranged, besides, the flame arrester is made of cassette type and is fixed by means of at least three fastening elements, and the breathing valve comprises a pressure plate, which moves in guides, and a vacuum plate connected to the plate by means of a telescopic guide, besides, in the upper part of the body there is a cover for valve maintenance, which is connected with an air duct via a barrier net.

EFFECT: increased efficiency of flame suppression.