Doc No: OMM50001243
Rev: C Page 39 of 68
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
A variation of this is the use of a hydraulic pump and cylinder jack (porta power) to
generate the load that the bumper, strong back, and nut would generate. This is shown
if Figure 12. It is useful to put "dry ice" on the seat if it will not loosen. Allow five
minutes for cooling of seat before attempting removal. Dry ice is often available at
grocery stores.
WARNING
Dry ice will cause freeze burns to skin if contacted. Use thick leather
gloves when handling
Figure 12: Hydraulic Power used to Remove Valve Seat
Tension Rod
Hold Down Nut
Hydraulic Ram
(jack)
Strong Back
Hand Pump to Pressurize Hydraulic
Ram
Top of Fluid Cylinder