I would like to ask about the function of the cross-connection pipes on the inlet and outlet pipelines of centrifugal pumps, and how to determine the size of such cross-connections
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As the title suggests, what is the purpose of the cross-connection pipes at the inlet and outlet of a centrifugal pump? How are the dimensions of these cross-connection pipes determined? I seek guidance from those with expertise.
Is there a large pressure difference between the pump’s inlet and outlet? The material can be transported even when the pump is not running; if that’s the case, the size of the inlet should be the same.
Is the flow rate too low, so the image can’t be seen? It’s probably due to the use of the smallest return pipeline
The scanning line or heat pump line is generally DN25.
This post was last edited by ylb913 on 2017-5-8 at 13:43. It is called the anti-freezing line for the pump inlet and outlet; it is generally DN40 to DN100 in size. Pumps with smaller sizes are not considered for this purpose, and this line also serves as a bypass for purging during shutdowns.
Used to prime the pump before startup to prevent cavitation.
Look at where it is connected – in front of or behind the check valve. If it’s in front of the check valve, it might be the hot water pump line; if it’s behind the valve, it could be the return line for the pump.
Look at where it is connected – in front of or behind the check valve. If it’s in front of the check valve, it might be the hot water pump line; if it’s behind the valve, it could be the return line for the pump.
Look at where it is connected – in front of or behind the check valve. If it’s in front of the check valve, it might be the hot water pump line; if it’s behind the valve, it could be the return line for the pump.