HENG ZHI / NEWS & BLOG
RTJ flange size standard
2025-01-07
In the world of manufacturing, the quality of machined surfaces can significantly impact the performance and reliability of mechanical systems. ID-mounted flange facing machines offer a solution for achieving the high standards required in today's industrial environment. These machines are typically used to machine the internal surfaces of flanges, ensuring that they meet the necessary specificati
Note
(1) The height of the protruding part is equal to the depth size E of the cushion ring groove, but it is not necessary to follow the tolerance of E.The shape of the full-plane protrusion connected in front can also be used.
(2) For 400-pound gasket ring sealing surfaces with specifications from NPS1/2 to 3 1/2, the corresponding size of 600-pound is used.
(3) For 900-pound gasket ring sealing surfaces with specifications from NPS1/2 to 2 1/2, the corresponding size of 1500-pound is used.
(4) For these gasket ring joints of 300-pound and 600-pound looper flanges, the gasket ring number and groove number are R30 instead of R31.
