Recent Posts

1

Valve Tech / Re: Pressure between the pump and CSV

« Last post by Cary Austin on December 09, 2024, 08:53:17 AM »

With the CSV1A adding additional back pressure it can make the pump think the well is deeper.  So, you should be fine as is.  But if you get a chance to change it the 1HP motor is fine, even with a 3/4HP pump end.  You could put a 10 GPM, 3/4HP pump on the 1HP motor, or replace the 10 GPM, 1HP pump end with a 15-18 GPM, 1HP pump end.

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Valve Tech / Re: Pressure between the pump and CSV

« Last post by Mike56 on December 06, 2024, 02:33:19 PM »

Thanks, Cary. The well guys put this in because that's all they had on their truck, saying it would be no issue. I suspected it wasn't right. They replaced a 3/4hp, 10gpm. I need to have this corrected to a 3/4 or even 1/2hp with this well setup, correct?

3

Valve Tech / Re: Pressure between the pump and CSV

« Last post by Cary Austin on December 06, 2024, 12:36:14 PM »

The back pressure to a Cycle Stop Valve is always whatever the pump can supply.  Looking at the curve for the 10 GPM, 1HP pump you mention it has a shut off head of 450'.  Subtracting the 40' for the static level leaves 410' or 177 PSI back pressure.  That is not too much for the CSV1A but is for the CSV125. 

That pump is really designed for a well with water at 200' or more.  The back pressure from the CSV is needed to keep that pump from upthrusting, as it is in a much shallower well than it was designed for.

A 15 or 20 GPM, 1HP would be better suited for a 40'-60' well and would only have 80-120 PSI back pressure.

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Valve Tech / Pressure between the pump and CSV

« Last post by Mike56 on December 06, 2024, 09:32:01 AM »

I've read a number of posts on the line pressure created by the CSV, no need to go into any details. My question is: With a 3/4hp pump the max pressure created in the line by the CSV will be X. Given an identical install, and the pump is now 1 hp, will the max pressure created by the CSV remain the same or will it increase? The 1 hp pump is this one: Franklin 1hp 10gpm 230v 3W 4" SS 4400 TRI Series FPS, static water is at 40', pump at 60'.

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Applications / Re: plumbing question for csv

« Last post by Cary Austin on August 07, 2024, 08:58:30 AM »

If you have a tight fit and then tighten a union it can pull on the CSV.  If the pipe in the ditch after the CSV settles and drops, it can put the CSV in a bind by bending it.  The CSV1A is much stronger and impossible to plumb in a bind.  It is also much shorter and you would not have to double elbow around.  The CSV1A would just fit on the pipe before it goes underground.

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Applications / Re: plumbing question for csv

« Last post by ps95 on August 06, 2024, 08:37:52 PM »

Not much room outside the well.  To install it there you may need to go straight out a foot or so with the CSV, then double elbow back to the pipe going underground.  It the pump is set on plastic pipe you could also install the CSV125 in the well, just under the well seal.  If it is steel pipe you would need the SS version CSVS125.

Hi, Cary, and thank you for responding! I am very new at this, so I hope I don't sound too dumb; however, I have been reading and looking at the pictures your other customers have posted. I can't find it again for the life of me, but was it you that said don't install in a bind? I'm trying to find out what that exactly means. Presuming it doesn't refer to sharp angles, I was thinking about using a few 45 elbows to 'wrap' it around the well housing so that when I put the well house back on, I won't hit any of the plumbing. The thing is heavy too so I want to do it as compactly as possible without rendering the CSV useless or leading to other problems.

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Applications / Re: plumbing question for csv

« Last post by Cary Austin on August 05, 2024, 06:40:05 PM »

Not much room outside the well.  To install it there you may need to go straight out a foot or so with the CSV, then double elbow back to the pipe going underground.  It the pump is set on plastic pipe you could also install the CSV125 in the well, just under the well seal.  If it is steel pipe you would need the SS version CSVS125.

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Applications / plumbing question for csv

« Last post by ps95 on August 05, 2024, 08:26:20 AM »

Greetings! I recently purchased a 40 psi cycle stop valve which I would like to fit somehow near my well. How should I plumb this in so it would work effectively for my setup?   https://i.postimg.cc/T3zNpGbw/DSC-0057.jpg

Thank you for any help and suggestions.

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Valve Tech / Re: Detailed dimensions of all o-rings in the CSV1A valve

« Last post by Cary Austin on July 17, 2024, 04:57:18 PM »

Sorry. Couple of machines down so we all hands on deck until back on line. Try not to forget.

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Valve Tech / Re: Detailed dimensions of all o-rings in the CSV1A valve

« Last post by pzinser on July 17, 2024, 10:22:06 AM »

Thank you for the diagram/breakdown of valve, showing correct o-ring placement. I also received the replacement o-rings from you and I'm very appreciative.
I try measuring them but I'm not confident once I compare my findings with a table of AS568 available o-rings.

Has the tech guy had any luck finding out the exact type/size of these o-rings?

Thank you again!

Phil Zinser