Piping hot tap plugging Hebei Home Security plumbing engineering 0317-6210018

Double seal double block: suitable for pipeline reconstruction short distance (1km-2km), such as: add bypassing pipeline, installing the main control valves and other pipeline (the construction process need to block two). Below is the double seal double after blocking construction process line was blocked, the media have temporary side line by temporarily. At this point you can block the pipe segment operations.