What is the difference between a regular ball valve and a true union ball valve?

[Angler02]

What's the diff between a regular ball valve and a true union ball valve?

 

[Nanook]

good question

 

[Angler02]

HAHA

 

[Nanook]

I amuse myself:lol:

 

[Angler02]

But your were sure that I needed them. HAHA

 

[Nanook]

I know what they are but do you????

 

[Nanook]

http://www.savko.com/PartList.asp?pictures=&pgid=1

 

[Angler02]

I sure don't thats why I asked. I am sure that I have seen them and do know but I can't put a picture in my head.

 

[logiktest]

Know what a union looks like? Know what a ballvalve looks like?

Merge the two together, and you get a TUBV.



Also, if your thinking about using these in your plumbing scheme, be sure upsize the plumbing.

 

[Angler02]

Ok see I know what a gate valve is!!! You should have said that.

 

[Angler02]

I believe that the returns are 3/4 and the drains are 1" 1/4

 

[Nanook]

Scroll down!

With a TUBV you can disconnect a pump or sump from either side and keep the flow stopped with the ball valve....ultra convenient but pricey.

 

[Angler02]

That is pretty neat. I don't see a need for me to have those though. I don't have a $40,000 dollar system. I am ballin on a budget.

 

[logiktest]

<a href=showthread.php?s=&postid=13287180#post13287180 target=_blank>Originally posted</a> by Angler02
Ok see I know what a gate valve is!!! You should have said that.

No, thats different. One valve mechanism closes like a gate, while the other closes like a ball with a hole in the middle.

 

[logiktest]

3/4" unions cost about 2 bucks, Baller...

 

[Angler02]

I will probably use 4 different regular ball valves. One one each return and one on each drain. Or maybe just one on my return. I don't know yet, I have to sit down and make a shopping list still.

 

[Angler02]

The TUBV is $14.25 a piece for 3/4". If I had a need I would get them. Regular ball valves have always worked for me. Remember you are talking to a guy who still uses an overflow and is damn happy with it.

 

[logiktest]

You probably (it's unlikely) won't need them on the drain side.

You would be well off to use a ball valve and a union on the return though... Valve to regulate flow. Union to easily remove the pump for your regular cleaning/oiling service.

 

[chadfarmer]

true union has a union on both sides plus a ball valve in the middle and are beefier

 

[logiktest]

<a href=showthread.php?s=&postid=13287241#post13287241 target=_blank>Originally posted</a> by Angler02
The TUBV is $14.25 a piece for 3/4".

Where in the world are you shopping for these!? And what material are they made of, Diamond coated titanium?

Are you planning to use all SCH80?