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Kleiss MCS120-24 System Manual v.1.1 March 2021
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www.MainlineControlSystems.com
Example I – Stopper Retraction Sequence: Stoppers Positioned Towards Each Other
Example I – Stopper Retraction Sequence: Stoppers Positioned Towards Each Other
NOTE: Always equalize pressure on both sides of the stopper before deflation or removal.
1) Deflate stoppers #2 and #3.
2) Use by-pass / vent ports on tower #1 and #2 to equalize pressures on stoppers #1 and #4. Equalize slowly.
3) Use by-pass / vent port on tower #3 to purge air from the repaired area.
4) Use system pressure gauge on tower #1, #2, #3, or #4 to determine if stoppers are equalized.
5) When pressure is equalized, deflate stoppers #1 and #4. Retract all stoppers.
6) Remove tools and install completion plugs.
