The reducer is also called the reducer, reducer, and reducer. One of the chemical pipe fittings, used for the connection between two different pipe diameters. According to the different shapes, it is divided into two types: concentric head and eccentric head. The material of the size head includes stainless steel size head (alloy steel, carbon steel size head, size 20 steel, Q235, Q345, 16Mn, etc.).
The size of the head standard national standard American standard British standard and various non-standard products.
The corresponding standards for flanges and tube sheets supporting the standard of the Ministry of Electric Power GD0506~0507 pressure vessels: NB/T 47020~47027-2012 implement the national standard (GB/T9112-2010), the Ministry of Machinery standard (JB/T81-2015, JB/T74 -2015), Ministry of Petrochemical Standard (SH3406-2013), Marine Standard GB/T10752-2005, Ministry of Chemical Industry Standard (HG/T20592-2009), etc. The material of the exported forged steel flange conforms to the American ASTM A105 standard.
