PLUGGING

G: Suspended plugging






G-A:Single line stop



G-B-A:Type A of two line stops

G-B-B:Type B of two line stops

G-B-C:Type C of two line stops

G-C: Four line stops (it applies to long distance pipeline replacement)

 
H: Cylinder plugging

H-A: Single line stop


H-B-A:Type A of two line stops (the max of transmission medium flow rate in the pipeline is 5m/s)

H-B-B: Type B of two line stops


H-B-C: Type C of two line stops

H-B-D:Type D of two line stops (the transmission medium flow rate in the pipeline should be more than 5m/s)

H-B-E:Type E of two line stops (the max transmission medium flow rate in the pipeline is 5m/s)

H-B-F:Type F of four line stops (when the max transmission medium flow rate in the pipeline is 5m/s, it’s more suitable for long distance pipeline replacement)

H-B-G:Type G of four line stops (when the transmission medium flow rate in the pipeline is more than 5m/s, it’s more suitable for long distance pipeline replacement)