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Vacuum receiver question

Vacuum receiver question

Vacuum receiver question

(OP)
Hi,
I am trying to get a vacuum tank fabricated for a really old piece of equipment. I have a drawing for the tank, but need help with two things.

1. If we reduce the size of the tank by 1000cu. in, how can we determine if it will have an impact on the system. Drawing Calls for SCH10 thickness of tHe wall, I am going for sch 40 as it is much easier to get.

2. Vacuum tank is supposed to have two area, low vac side and high vac side. (Top is low and bottom is high vac side)
I don't understand is that how are you getting any vacuum in low side at all (see attached drawing, pump is connected through a pipe to high vac side).

The drawing attached show the configuration of the vac tank + piping that is going into the drain down below from the receiver tank.

RE: Vacuum receiver question

The low vac side is connected to the high vac side with the 1" downpipe that hangs inside the 3" pipe connected with the 3" Tee to the high vac side. It seems the control of low vac side is achieved through some valving connected to the low vac side couplings...
Cheers,
gr2vessels

RE: Vacuum receiver question

Gas flows from the low vacuum to the high vacuum by bubbling though a column of liquid of controlled height. This acts as a pressure control for the low vacuum side.

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