The breathing valve with flame arrester is composed of breathing valve and flame arrester, which has dual functions of breathing valve and flame arrester. It can avoid tank damage due to overpressure and prevent external fire. According to the different working conditions, it can be divided into fire resistance breathing valve, fire resistance single breathing valve, fire resistance single suction valve and other structures.

Specification 2 "~ 12" (DN50 ~ DN300)

Positive pressure setting 0.2 ~ 103.4kpa

Negative pressure setting -0.2 ~ - 82kpa

Design and inspection standard api2000

Flange standards: ANSI B16.5, en1092, JIS, Hg / t20592 ~ 20615, GB / t9113, etc