Need a needle valve - 'Y' with two taps???

[Mr. Tickle]

Hello!

Thanks for your input on my last thread - i've now got a load of options and some names of things so i can ask properly.

I'm looking for a needle valve - it would be good if i could get one that has one input and two outputs - with the valve controlling the two. So as one increases, the other decreases.

The problem i have with finding these things is i don't know what they are called.

I am looking for them in 6mm.

Thanks for any help you can give about either sourcing or naming such a tap - is there a name for it?

Thanks,

Mr. Tickle.

 

[ChrisR]

Ok, wossit for? Are you seeking to share pressure or flow?

Mains water? If not, then what pressure?

 

[Mr. Tickle]

OK, the thread title is a little confusing, i need one tap...

It's for liquid flow, at atmospheric pressure, it's open so i think that's atmospheric??

SO yea, one tap that switches the flow from one to the other...

Cheers Chris!

 

[doitall]

OK, the thread title is a little confusing, i need one tap...

It's for liquid flow, at atmospheric pressure, it's open so i think that's atmospheric??

SO yea, one tap that switches the flow from one to the other...

Cheers Chris!

A three way vent cock would do the trick, only problem is the smallest I know is 20mm (3/4") and cost £165 each.

Will try and think of something else

 

[Mr. Tickle]

It would be easier to have a two valves setup together, i guess.

 

[doitall]

It would be easier to have a two valves setup together, i guess.

depends on its use, a 3way vent cock always has two ports open either with a flow or without

 

[TicklyT]

Something like these?
http://rswww.com/cgi-bin/bv/rswww/s...cciaddjfkfkeglcefeceeldgondhgk.0&cacheID=ukie

Come to think of it, depending on how finely you want to adjust your flow, a couple of radiator valves might do the job.

 

[doitall]

Thems all single valves TicklyT

Now I got to pluck a partridge so back later

 

[Mr. Tickle]

Yea, just like those RS ones, but with two outputs. One tap controlling both. So 'A' is on 100% then 'B' is on 0% - as you turn the tap, it moves to 80/20, 50/50, 30/70 etc etc.

 

[TicklyT]

My thought is to use two needle valves set with the knobs facing each other. Drill the knobs and fit a couple of pins to lock them together, then as you open one valve, the other shuts.

Or use a shaft coupling in place of the knobs

Or push the knobs into either end of a short piece of plastic or rubber tube.

 

[Moss5]

http://rswww.com/cgi-bin/bv/rswww/s...gljkcefeceeldgkidhgl.0&cacheID=ukie&Nr=avl:uk