Stuck up with this valve symbol 2

[azeemanwerch]

Hello everybody,

I need your advice regarding the valve symbol in the attached picture. I’ve come across this valve in a project but fail to identify what it actually is. Hope someone would be able to name this valve and hopefully identify some source as well. Btw this is not a shuttle valve.

 

[hydtools]

I guess I would call it a fixed flow restrictor with bi-directional excess flow check valves. The check valve would close when the deltaP across the flow restriction exceeds the check valve spring force.

Ted

 

[Compositepro]

I agree with Hydtools. It appears to be a bi-directional excess flow valve. The ball-checks will close if flow exceeds a set-point. The orifice allows the valve to reset open when pressure is reduced.

 

[azeemanwerch]

Thanks hydtools and Compositepro. I also guessed the operation to be so. However, I was not able to name the valve the way you both did. Do you know of any pneumatic valve manufacturer with this product in their range? Would appreciate your help.

 

[azeemanwerch]

Thanks for everybody. I have googled many manufacturers. Thanks once again for the great help.

 

[hydtools]

I wonder if it could provide a damping function for a double-ended cylinder which is moved by some external force.

Ted