Hi all,


I have been asked to connect up a single phase bore hole pump that supplies a single tap. The customer would like a pressure switch fitted so that the pump will only run when the tap is turned on - so that the pump is not running continuously.

Can anyone recommend a suitable pressure switch, and is the pressure switch sufficient or do I need control gear to protect the pump from overload etc?

Thanks.

You need to be looking at a pressure vessel, pressure switch, check valves and some sort of starter also the pump would be suitable for the application.

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James

For a single outlet would it not be easier to have an open pipe and simply use a manual switch to operate the pump when water is required?

Hi circle 143

Did one of these last year - bore hole company supplied the kit which had a lovely foreign flow switch which switched on when tap opened & off when closed - some sort of pressure differential detector. Have just had a call to nip and look at an existing farm installation which i think has same system - am going tomorrow and will try to get info for you if you can wait till tomorow evening

regards steve

Hi circle 143,

Based on my horticultural experience, a correctly sized pressure vessel, pressure switch, and pressure relief valve is a really useful way of ensuring that the max number of on/off cycles won't be exceeded for the bore hole pump.

Reduced pump switching maximizes its working life - as well as reducing the number of times the darn thing has to hauled out of the ground!

(Thermal, manual reset overload trip switches are usually used.)

Regards
E.

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The meaning of life is a blank sheet; write on it wisely. ~ M.Cutler.

Good evening,

Thank you all for your responses, it is much appreciated. The job is on hold for now - but I am definitely going for the most simple option.


Thanks.