Author Topic: Pressure test equipment.  (Read 256 times)

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Offline John Candy

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Offline IanT

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Re: Pressure test equipment.
« Reply #1 on: Sep 27 2019 08:41 »
It might be good enough for 'personal' use John - probably easier to use than the tender/engine pump and the price is not unreasonable. Whether it will hold a certain pressure for 5-10 minutes I don't know but that ability is really essential to be able to detect small leaks in fittings/boilers. The pressure gauge only needs to read consistently for home use, it is unlikely to be truly accurate.

For official test purposes, the gauge has to be calibrated against a known source and I suspect that the gauge supplied would not be up to the task (or adjustable). However, it should be possible to fit a new/better gauge if required - most of the work required to build a test rig has already been done...

Or you could just build one from scratch which was the only way not so long ago...

IanT

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Offline IanT

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Re: Pressure test equipment.
« Reply #2 on: Sep 27 2019 08:50 »
Something like this (based on redundant cake tin!)  :-)

The pump was based on an EIM design - I'll send a scan of the article to anyone who would like to build one...





Regards,

IanT
Nothing's ever Easy - At least the first time around.

Offline John Candy

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Re: Pressure test equipment.
« Reply #3 on: Sep 27 2019 08:54 »
Interesting, Ian.

I have no use for a pressure test rig but thought it may be of interest to somebody.

Regards,
John.
My fellow Members, ask not what your Society can do for you, ask what you can do for your Society.

Offline cabbage

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Re: Pressure test equipment.
« Reply #4 on: Sep 27 2019 11:14 »
This is mine... It uses quick release dry break connections. The copper plumbing is inside the flap as is the rubber water hose.





Regards

Ralph

Offline IanT

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Re: Pressure test equipment.
« Reply #5 on: Sep 27 2019 14:55 »
That looks like water inside your gauge Ralph - so (if you don't already have one fitted) then a 'U' tube between it and the pump might help to keep it out.

Regards,

IanT
Nothing's ever Easy - At least the first time around.

Offline John Candy

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Re: Pressure test equipment.
« Reply #6 on: Sep 27 2019 17:50 »
Could it be glycerine?
I have a test kit (for my oil-fired central heating boiler) and the oil pressure gauge is filled with glycerine.

Regards,
John.
My fellow Members, ask not what your Society can do for you, ask what you can do for your Society.

Offline cabbage

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Re: Pressure test equipment.
« Reply #7 on: Sep 27 2019 20:00 »
Yes, it is Glycerine. It gets a little colder around here... In fact most of the pressure gauges around here have it as standard. I remember Tim being amazed at it.

Regards

Ralph

Offline Doddy

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Re: Pressure test equipment.
« Reply #8 on: Sep 27 2019 21:45 »
Something like this (based on redundant cake tin!)  :-)

The pump was based on an EIM design - I'll send a scan of the article to anyone who would like to build one...





Regards,

IanT
Yes please Ian, it will help with my N&W J boiler testing.
"You don't know what you don't know"

Offline IanT

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Re: Pressure test equipment.
« Reply #9 on: Sep 28 2019 09:07 »
Just sent you an email with scans of the article.

Regards,

IanT
Nothing's ever Easy - At least the first time around.

Offline Doddy

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Re: Pressure test equipment.
« Reply #10 on: Sep 28 2019 10:02 »
Thank you Ian, just received.
Bob
"You don't know what you don't know"