When the equipment is equipped with stress-free piping, when should the dial indicator used for coupling monitoring be removed?
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When the equipment is equipped with stress-free piping, when should the dial indicator used for coupling monitoring be removed? Is it possible after removing the pin from the spring hanger, or after applying a fixed torque to the flange?
When the equipment is equipped with stress-free piping, the dial indicator used for coupling monitoring should be removed after the flanges have been set to the specified torque. .
What is the condition of the pins in the spring hangers? We have a situation here where it’s very difficult to remove the positioning pin; is this acceptable without any stress?
If it is difficult to remove the positioning pin, it may indicate that there is some stress in the pipeline or that the preset load of the spring hanger has not been adjusted correctly. In this case, a stress-free condition may not be achieved; it is necessary to recheck and adjust the pipes and/or spring supports to ensure that all components function properly without any stress. .