Traditional Culture Encyclopedia - Hotel franchise - Do the steam pipes used for hotel heating belong to the GB category or the GC category?

Do the steam pipes used for hotel heating belong to the GB category or the GC category?

Hello, it belongs to the GC category (GC3 level), not the GB category.

GC3 grade pipes transport non-toxic, non-flammable fluid media, the design pressure is less than or equal to 1.0MPa, and the design temperature is greater than -20 ℃ but less than 185 ℃.