How to divide the pressure rating of flanges: Common flanges have certain differences in pressure rating due to their use in different regions. For example, large stainless steel flanges are mainly used in high-temperature resistant pipelines in chemical engineering, so there are high requirements for their material pressure bearing function. Therefore, customers often require forged flanges, as forging increases density and enhances its pressure bearing capacity. There are clear requirements for the compressive strength of large flanges in domestic and international standards, generally including PN25, PN16, PN10, PN40, etc. PN10 and PN16 are commonly used during this period.
Post time: Oct-18-2024