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Gaz r
20-11-2007, 01:13 AM
What is the purpose of a Q,min and Q,max orifice plate on a liquid ammonia pump?
This is to control the minimum and maximum flow rate of the pump to allow optimum heat transfer, I think.
ian
John Hunter
20-11-2007, 02:43 AM
The q min is to ensure proper cooling of the motor and for general lubrication of the pump parts. The q max is an overload preventor.
US Iceman
20-11-2007, 02:46 AM
See page 4 of the document from this link:
http://hantech.com/documents/PDF/HP237.pdf
Hope that clears up the questions.;)
Sergei
20-11-2007, 02:54 AM
Minimum flow for cooling the electrical motor or for cooling the mechanical seal. Maximum flow for pump prime. At high flow the pump can loose prime.
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