TDW France-22-E-03-09
Figure 44. Set Control Bar Latch
D. Tighten the control bar clamp (Figure 45). The plugging head is now in a secure position. Remove the
control bar handles.
Figure 45 Tighten Control Bar Clamp
E.
If this is a double-position job, set the upstream plugging head. Repeat steps A through D.
F.
Bleed off pressure and purge the isolated section. Plugging head(s) are set when pressure in the isolated
section is zero psi (or zero bar), and handles are properly positioned.
G.
Snug up the control bar latches, if necessary, after purging.
H.
Remove the handles from the plugging machine control bar.
CAUTION: After the plugging head has been set, remove handles from the control bar. Leaving them in
the machine increases the possibility of the plugging head being accidentally dislodged.
I.
Purge, cut and perform necessary work.
2.7
Removing the Plugging Head
When removing a double system setup, purge and pressure equalize the isolated section, then remove the
upstream plugging head-first.
Содержание POLYSTOPP
Страница 2: ...TDW France 22 E 03 09 2...
Страница 26: ...TDW France 22 E 03 09 Figure 41 Lower Plugging Head...
Страница 40: ...TDW France 22 E 03 09 Figure 64 T 203 Tapping Machine Parts List 1...
Страница 43: ...TDW France 22 E 03 09 Figure 65 SHORTSTOPP II Dual Control Bar Assembly...
Страница 45: ...TDW France 22 E 03 09 Figure 66 SHORTSTOPP II Jack Assembly...
Страница 48: ...TDW France 22 E 03 09 Fig 67...
Страница 50: ...TDW France 22 E 03 09 TO BE ADDED UPON NEW DESIGN VALVE LAUNCHING Fig 68...