It is better to use a repair patch when a pipeline surface damage is less than 30mm. About deep damage, it is need a hot-melt stick to fill as per the standard of SY/T0413, and then glue it with repair patch again.
The size of repair patch is determined by the damaged area, respectively it is 150-200 on width. Hot-melt Stick's diameter is 11mm.
Application Guide:
Perform Standards:SY/T0413-2002\SY/T4054-2003
Suitable Pipeline Diameter:DN50-DN5000
Maximum operating temperature:-40~140℃
Perform Standards:SY/T0413-2002\SY/T4054-2003
Suitable Pipeline Diameter:DN50-DN2000
Maximum operating temperature:-50~140℃