Some horizontal bag pumps (such as the Calvert bags pumps used for transporting liquid hydrocarbons) have only a balance drum but no balance tube. May I ask: does this balan…
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This post was last edited by backcat666 on 2018-5-26 05:13. As the title says!
The balance tube is connected inside the pump to the pump’s inlet pocket; it’s just not visible from the outside
Some pumps have an external minimum return line to the suction tank, while others do not have such a line!
If there is a cross-section view, it’s possible to take a look at it to see whether there are any channels in the cavity behind the balance drum that lead to the pump’s sac
I took a closer look; there’s no balance drum in the cross-section diagram :)
It is easy to understand that it is connected to the inlet behind the balance drum； How to explain “import-export connection”?
In the cross-section, isn’t there any passage in the cavity behind the balance drum leading to the pump chamber? :P
It is the inlet and outlet section, as the inlet and outlet flanges are both welded to one piece, and this piece is called the inlet and outlet section. I mentioned above that \"the balance tube is connected inside the pump to the pump’s inlet chamber; it’s just not visible from the outside.\" A hole has been made in the chamber behind the balance drum; this hole is connected to the cartridge (inlet).
It says Calrit pumps above, and a cross-section of Sulzer is shown below. A cross-section diagram can’t show all locations after all.