Boot tray

Work concerning plumbing or sanitary water (hot, cold, clean or used). Management, access and use of water at home: drilling, pumping, wells, distribution network, treatment, sanitation, rainwater recovery. Recovery, filtration, depollution, storage processes. Repair of water pumps. Manage, use and save water, desalination and desalination, pollution and water ...
ericfpr
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Re: Boot Tray




by ericfpr » 29/02/16, 11:38

maybe, I try to go in several directions ... to finally choose the best.
the goal of the ferry was to do without socks, flapper etc ... it's always a source of annoyance when you multiply the accessories.

I'm starting to waste a lot of time on this tray and the weather ...

I also tried to put a bigger flapper, nothing to do, the sand is abrasive to burst and NBR seal spring tip and no longer tightness! I cut one to the grinder to understand ...

Macro, you're talking about a ball valve; the problem is to get down this gear in a casing of 100 and the other problem is that as long as there is sand the ball will fall but will not seal!

I spoke to my supplier in Montpellier who did not advise me.
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Re: Boot Tray




by Macro » 29/02/16, 11:49

Everything depends on how you use your pump (in automatic it's not very easy) but personal my taff we have a suction column without foot valve to which we put a simple valve 1 / 4 tower at the top of column when it is not used it closes the valve and basta ca does not boot. The whole thing is to have a perfectly waterproof riser. Very often the problem of defusing is due to the packing of the pump which is intended to be pressure-tight (that's the plate) but in depression it tends to take air ...
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Re: Boot Tray




by Christophe » 29/02/16, 11:49

Bin the tank may not be the solution precisely ... I'm sure that there are more tolerant valves: as Macro says, a ball valve may be the solution (the sand will "stick" less to a surface spherical than plane ... especially if the contact is metal on metal compared to a valve with plastic or fiber seal)
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Re: Boot Tray




by Macro » 29/02/16, 12:05

Regarding the ball valves .. It is very easy to manufacture yourself with plumbing connections and it works rather well we can even stack several on top of each other the whole thing is to find rather large balls (balls of big bearings)
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Re: Boot Tray




by Christophe » 29/02/16, 13:10

You still need a little reminder? Do you really rely on gravity?
In this case, the flap must remain vertical ... (well, to a certain extent)
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Re: Boot Tray




by ericfpr » 29/02/16, 13:16

My systems work with press control, in automatic trigger for garden watering all 24 H during 2 * 5 mn. what you say for the waterproofness of the bodies of pumps was confirmed to me by a technician of Guinard building ...

I'm not sure of the operation of the ball valve but it deserves to be tested! must I now that I find balls big enough ... and at home, it's not won ...
to prevent the NBR seal from being eaten by sand, I would put it down the seat instead.

logically with the weight, when the aspi stop the ball should fall, if there is not too much sand, it should be sealed ...
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Re: Boot Tray




by Christophe » 29/02/16, 13:22

Yes provided that the ball valve (without return spring) is held vertically (with a small tolerance ...)

The ideal I think would be to have a female part in metal = seat that corresponds to the ball with a high enough height (1 / 3 of the ball?) ... therefore metal sealing metal.. Like valve self and well d other sealing in industry ...
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Re: Boot Tray




by ericfpr » 29/02/16, 13:26

at the same time, to put a spring of return, it is not very complex, it is necessary still to find it ...

Do you think this clapper would work with a ball of how much? 20 mm minimum, no?
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Re: Boot Tray




by Christophe » 29/02/16, 13:30

Not complicated but it's a bit of loss and more ... so if we can do without it is better.

Personally I have never done one, Macro will be able to answer better ... but yes 20 mm seems to me to be "good" (with a ladle) ... see how the ball valves are dimensioned by the manufacturers (on sanitary installation it there are ball valves, plastic vs metal)
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Re: Boot Tray




by Macro » 29/02/16, 13:41

Personally I did not put spring on the balls ca allows them to turn in their housing and so they run in permanence on their seat. on the other hand I did a search and I did not find anything done on the net ... Of course it was on a vertical axis check valve ...
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