3/4 ball valves ( flow )

[aquaman05]

I was wanting to put a tee on my return line with a couple valves so i could do my water changes from here.

My pump is a eheim 1260. I didnt want to put valves on here and restrict the flow.
Has anyone else done this , if so how does it work ok ?

The valves i can find local are not full port, I would have to use 1" valve and reduce it to 3/4 at each end which i think would restrict flow somewhat.

I'll take any advice please.

Thanks

Aqua

[RegalAngel]

This is the setup I have on my QT. I can fill the tank with SW or RODI water from the 3/4" flex PVC or I can drain it using the same line. :)

Just plain jane on/off sch 40 ball valves.


http://bwclark.smugmug.com/photos/588961701_wVGwj-L.jpg

[d0ughb0y]

I think you don't get full flow only if you use the true union ball valve.

[aquaman05]

I think sch 40 will choke flow wont it ???

[d0ughb0y]

this is the description for a true union ball valve

3/4 inch True Union Ball Valve
3/4" True Union "Safety Block" Ball Valve, comes with both slip socket and FPT ends. A compact and very well made valve, however not full flow. If you need full flow, buy one size larger valve. Black handle. Easy to turn design. Test pressure 225PSI at 73F, working pressure 150PSI at 73F. Rated temperature range, 40F to 125F continuous, up to 140F for short periods. EPDM seal and O-ring.

There is no such caveat about not full flow for single union or just plain ball valve. In fact, the single union is described as full flow

S4-007 .75 inch Single Union BV
3/4" Single Union Full Flow Ball Valve, A compact and very well made valve. "Safety Block" design. Black handle. Easy to turn design. Test pressure 225PSI at 73F, working pressure 150PSI at 73F. Rated temperature range, 40F to 125F continuous, up to 140F for short periods. EPDM seal and O-ring. Rebuildable valve.

[aquaman05]

WOW !!!! Thanks ( I guess) LOL

I can buy sc 80 ball valves local but they are 30 bux each but they are full flow.

I can buy 1 " sch 40 and bush it down to 3/4 at each end. Is this not the way to go i take it. these are only 5 bux and price seems good..

thanks

[RegalAngel]

[QUOTE]<a href=showthread.php?s=&postid=15705315#post15705315 target=_blank>Originally posted</a> by aquaman05
I think sch 40 will choke flow wont it ??? [/QUOTE

Sch 40 vs Sch 80 has nothing to do with flow. Sch 80 for all components is only more heavy duty built for higher pressure. Sch 40 ball valves will work fine.

[aquaman05]

<a href=showthread.php?s=&postid=15710537#post15710537 target=_blank>Originally posted</a> by RegalAngel
[QUOTE]<a href=showthread.php?s=&postid=15705315#post15705315 target=_blank>Originally posted</a> by aquaman05
I think sch 40 will choke flow wont it ??? [/QUOTE

Sch 40 vs Sch 80 has nothing to do with flow. Sch 80 for all components is only more heavy duty built for higher pressure. Sch 40 ball valves will work fine.

Oh ok !

I didnt think sch 40 was full port so i was thinking this would restrict my flow on my return pump ?

Maybe i am just over thinking this and should just buy the sch 40 stuff. Im just trying real hard not to get the floor wet:bum:

Thanks'

Aqua