Page 429 - Pipeline Pigging Technology

Pipeline Pigging Technology

PEAK PIGGING TRANSIT PEAK PIGGING
DIFF PRES SPOOL DIFF PRES FLOW IN
IN TRANSIT AVG VEL IN -T" OPPOSITE
SPOOL(PSI) (FLOW RATE) (PSI) SIDE

26 .82 FPS 17 NO FLOW
(191 6PM)

10 .91 FPS 33 400-550
(211 6PM) 6PM

33 1.49 FPS 37 300-450
(346 6PM) 6PM

12 1.78 FPS 24 NO FLOW
(437 6PM)

31 2.08 FPS 12 NO FLOW
(485 6PM)

30 2.40 FPS 29 100-200
(559 6PM) 6PM

19 5.18 FPS 1 11 NO FLOW
(1,274 6PM)

1. Pig also passed through Misaligning Flange with 10 degree offset.

Table 7. Knapp dual-diameter (14 x 10) gauging pig (using water).

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