Dear friends,
I just come across an existing design (existing steam piping) that supplied to existing heat exchanger. Steam piping is supplied to tube side of HE.
The question is: the existing facility will be demolished. Steam piping will be increased in size (form 2” to 4”). The HE also will be change to a new one (bigger one) in order to increase the capacity.
Shall I re-evaluate back the existing vacuum breaker that attached to the existing steam piping? I plan to re-use back the existing vacuum breaker. I never come across sizing for the vacuum breaker at pipe. This should be to protect the shell side of new HE I guess. Anyone can share opinion?
i think this vacuum breaker is to protect during the change of temperature from high temperature to ambient especially during turn around.