1. When the equipment is connected to the pressure charging pipeline, the replacement gas pipeline (such as the nitrogen pipeline, the Compressed air pipeline) , a blind board is set at the cut-off valve.
2, equipment, Piping low-point discharge net, if the process media need to be centralized to a unified collection system, in the cut-off valve after the blind.
3. The exhaust pipe, drainage pipe and sampling pipe of the equipment and pipeline should be provided with a blind plate or wire plug behind the valve. EXCEPT NON-TOXIC, non-hazardous and non-explosive materials.
4. When the installation is being built by stages, a block plate is arranged at the cut-off valve of a pipe in connection with each other so as to facilitate the construction of subsequent works.
5, the normal production of the device, need to completely cut off some of the auxiliary pipe, generally should also be set up blind.
