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Sea water presostatic control valve
2

Sea water presostatic control valve

Sea water presostatic control valve

(OP)
For a sea water R-22 condenser I need to find a presostatic flow control valve. There are several tahat work with fresh water, and the only one I know for sea water is about 1 1/2" inches. Too small.

I need a flow of sea water about 48 m3/hr this is about 2 1/2" or 3" diameter. The valve should close or open depending on the pressure in the condenser. I need a pressure in the R-22 water condenser of about 150 to 220 psi. The valve pressure drop shoul be about 1 Bar at maximum flow.

Does anyone know another way to control this (remember the big problem is sea water so corrosive).

I also think of several smaller valves in paralel. What do you think about this alternative ?

Regards

RE: Sea water presostatic control valve

This is quite simple really and done all the time when the required valves are too small. Come in the cond. with the required condenser line size(3") them install a "Y" two correct size valves(1-1/2") another "Y" back the required size, parallel the power heads to service valve on condenser. Hope this is helpful!

cogito ergo sum     "I think, therefore I exist"

RE: Sea water presostatic control valve

Why not use a Danfoss PM main valve with a HP pilot valve mounted on it?
Peter

RE: Sea water presostatic control valve

Metrex. California.  Near San Diego.  Makes lots of such devices for the U.S. Navy.  Through I believ 8" Size...

RE: Sea water presostatic control valve

(OP)
Thanks imok2 for a good sugestion.

Thanks sterl. Metrex seems to have all the valves you can ever need.

I apreciatte HVACR2 for his sugestion, but I do not know how to apply that. I think you are confused. The PM will control the refrigerant flow and what I want to control is the sea water flow to the condenser.


Regards

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