| Project |
S (m²) |
L1 (m) |
L2 (m) |
L3 (m) |
|
Conditions to be satisfied with the pig launching trap
|
≥1.5L×L |
0.5～1 |
≥L |
≥1 |
|
Conditions to be satisfied with the pig receiving trap
|
≥1.5L×L |
0.5～1 |
≥L |
≥L |
Note: S refers to the area of the detector operating area, expressed as length × width;
L1 refers to the distance between the injection port, the return port or the dielectric port from the blind plate
L2 refers to the distance between the injection port, the return port or the dielectric port from the different diameter joint.
L3 refers to the distance between the different diameter joint from valve.
L refers to the length of the detector.