Breathing valve is a kindl air breather which install on the petrochemical fixed storage tank in orderto avoid tank over the pressure of over vacuum making the storage tank destruct. working medium: Gasoline, Kerosene, diesel oil, aromatic naphitha, air, etc or other petrochemical material. Flange connection adopt to HG/ T20592-2010 PN1.0MPa, also can meet customer' s demand according to HG JB, ANSI-B 16.5, JIS ST
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