Class a boiler license renewal exemption standard

Manufacturer level A can be.

In accordance with the manufacturing license level division standards are as follows:

①A class boiler manufacturers boiler manufacturing scope: unrestricted, is the highest level of boiler manufacturing license level.

② B class boiler manufacturers boiler manufacturing license level lower than the A class boiler manufacturers, boiler manufacturing scope: rated steam pressure less than and equal to 2.5MPa steam boiler (gauge pressure).

3 C-class boiler manufacturers boiler manufacturing license level below the B-class boiler manufacturers, boiler manufacturing scope: rated steam pressure less than and equal to 0.8MPa and rated evaporation less than and equal to 1t / h steam boiler; rated water temperature less than 120 ℃ hot water boiler (gauge pressure).

4D boiler manufacturers Boiler manufacturing license level below C boiler manufacturers, boiler manufacturing scope: rated steam pressure less than and equal to 0.1MPa steam boiler; rated water temperature of less than 120 ℃ and rated thermal power less than and equal to 2.8MW hot water boiler (gauge pressure).