Hot water or steam is a much more aggressive medium than it appears. Basically, the temperature resistance of a material (e.g. on data sheets) is only valid for the medium air .In our experience, many users do not know that the material temperature resistance only applies to air.
If we now assume hot water or steam as the medium, the maximum temperature resistance is significantly reduced.
As a guide for the hot water or steam resistance of O-ring materials we have compiled a table for you. Please note that these are approximate values. In particular, if your application should reach the limits of the material temperature limits, a precise test is necessary.
Important: When considering the maximum temperature resistance of a material, the saturation content of the water vapor must always be taken into account. The specified values are based on 100% saturated water vapor.