R134a System Circulators: Finding the Right Pump

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When selecting a pump for an R134a system, it is crucial to consider the specific requirements such as flow rate, pressure, and temperature. The system requires a flow rate of 2 GPM at a temperature of 285 Kelvin, and vapor will be present. A standard domestic heating pump may not be suitable due to the need for appropriate seals and pressure handling. A constant-volume positive-displacement pump may be necessary, depending on the pressure differential across the pump. Ensuring the pump can handle both liquid and vapor phases is essential for optimal performance.
amish99
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Just a quick question, which mayb be very simple to answer,

I have a system which is currently running R134a as the working fluid, are there specfic circulators i have to use to move the fluid around?

I have the pressure drop and head for the system calcuated, but am stumped on what pump i am able to use.

Being a non corrosive fluid, can i get away with a normal domestic heating pump?

Cheers
 
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What are your GPM (gallons per minute) requirements? What pressure (in,out) do you need? What temperature range? Because R134A is a refrigerant, will you be pumping vapor at all?
 
The gallons per minute required is 2
the temp is 285 kelvin and yes there will b vapour
 
amish99 said:
The gallons per minute required is 2
the temp is 285 kelvin and yes there will b vapour
Do you need a constant-volume positive-displacement (liquid or vapor) pump? What is the pressure differential across the pump? The maximum pressure determines how good the seals need to be, and the pressure difference determines the horsepower.
 

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