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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Rob.Hall on April 01, 2008, 08:43:06 pm

Title: How much water pressure can you put through a RO
Post by: Rob.Hall on April 01, 2008, 08:43:06 pm

I have a 200 gpd RO.

I have no problems with water pressure.

What is the max these ROs can take or is there a recomended limit.

I run min between 60 and 80 on the guage but would love to turn it up more.

Cheers Guys and Lasses

Title: Re: How much water pressure can you put through a RO
Post by: Rob.Hall on April 02, 2008, 09:10:34 pm

Am I asking this question incorectly.

No replys  :(

Title: Re: How much water pressure can you put through a RO
Post by: Wayne Thomas on April 02, 2008, 09:29:30 pm

A low pressure 4040 membrane has a maximum pressure of 225psi. As for a merlin..... no idea.

Title: Re: How much water pressure can you put through a RO
Post by: Rob.Hall on April 02, 2008, 09:43:51 pm

Thanks Wayne.

Thought I was going bonkers.

Surely someone knows.

Well I supose I will have to ring the boys up if I can't get an answer.

Title: Re: How much water pressure can you put through a RO
Post by: Jon-scwindows on April 02, 2008, 10:20:39 pm

i had a 300gpd ro and on the plastic casing was a sticker that read max operating pressure 125 psi.  I think thats for the smaller ones, 4040s can take more so i would probably have it about 90, 100 psi

Title: Re: How much water pressure can you put through a RO
Post by: Rob.Hall on April 03, 2008, 06:34:20 pm

Thanks Jon- sc

Title: Re: How much water pressure can you put through a RO
Post by: [GQC] Tim on April 03, 2008, 06:37:05 pm

Quote from: Jon-scwindows on April 02, 2008, 10:20:39 pm

i had a 300gpd ro and on the plastic casing was a sticker that read max operating pressure 125 psi.  I think thats for the smaller ones, 4040s can take more so i would probably have it about 90, 100 psi

I seem to recall it's the same here on my Purefreedom 300GPD, 125psi.