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This document compares the materials 1.4112 and 1.4122 for use in ZK valves, as well as other materials like stellite. For ZK29 valves handling pressures up to 100 bar, the plug and seat ring are made of 1.4112, while for ZK313 valves handling pressures up to 300 bar, the plug is made of the harder 1.4122 material. Other valves often use 1.4006 or 1.4571 for the plug and seat, sometimes with a stellite coating. Testing showed that the homogeneous microstructure of 1.4112 and 1.4122 reduces wear compared to

Author

Murilo Lini Nunes

Language

EN