Gear pump pressure
Gear pump pressure
(OP)
Hello,
i have a setup where i uses a small gear pump. It is a brushless pump with a inner controller. It is max 10 bar, max 1liter per min. The seller told me when it 0.1 Lpm it would be at around 7 bar. However when i regulate the flow with the controller, my pressure gauge doesnt show any pressure change however there is flow rate changes. I was wondering is this how gear pump works? Do i need to use a throttling valve to make the pressure go up? What do i need to make the liquid have around 7 bar pressure at downstream.
Thanks
i have a setup where i uses a small gear pump. It is a brushless pump with a inner controller. It is max 10 bar, max 1liter per min. The seller told me when it 0.1 Lpm it would be at around 7 bar. However when i regulate the flow with the controller, my pressure gauge doesnt show any pressure change however there is flow rate changes. I was wondering is this how gear pump works? Do i need to use a throttling valve to make the pressure go up? What do i need to make the liquid have around 7 bar pressure at downstream.
Thanks





RE: Gear pump pressure
So yes, if for whatever reaosn you want a higher presusre downstream of your pump at a given flow, then you need to raise the system pressure atrificially by means of a throttling valve or other device to restrict flow - e.g. an orifice plate or smaller diameter tubing.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Gear pump pressure
RE: Gear pump pressure
Note that as pressure builds, your motor will likely being to slow down, and fluid slip in the pump will increase, therefore you will see a dip in flow.
RE: Gear pump pressure
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way