The zone valve box is typically installed on corridor pipelines of each floor to control the gas supply for that specific level, while also serving as an emergency shut-off device in case of accident. Meet the Chinese national standards of GB50751-2012 technical specification and ISO 7396 and HTM02-01 standards.
The zone valve box is typically installed on corridor pipelines of each floor to control the gas supply for that specific level, while also serving as an emergency shut-off device in case of accident.