Any Helpful Hints On Circ Pump Flanges?

[velvetfoot]

I'm replacing a couple of Taco 007s with EcoCirc Varios. The flanges are oriented 90 degrees differently on the pumps. It looks like the gap between the flanges is okay, just the orientation. It's a tight squeeze, but do-able, if I mount the pumps as-is, but the front end would be blocked for maintenance and I'd have to take the pump off (not sure how often this'd be necessary).

How do I approach this? Thankfully it's warm now, so even when it does take the inevitably long time....

 

[Clarkbug]

You need to make sure the motor is mounted parallel to the floor. From my mental picture I'm thinking that won't be the case if you install using the old flanges.

Can you rotate the flanges on the pump or piping at all? If not, I would replace the flanges on your piping before the pumps go in.

 

[velvetfoot]

I bought some extra Taco flanges. I'm gonna replace them, in all liklihood.

 

[Clarkbug]

I got the webstone flanges that rotate and have shutoffs built in. Very handy.

 

[velvetfoot]

I've seen them and one model even has a built in drain valve. The pumps are already isolated by ball valves. Thing is also, I want to do a minimum amount of work, so if I stick with the Taco flanges the height should be right. All bets are off if I break something, but I probably won't be waiting for something in the mail, and will make do.

 

[BoilerMan]

Are your original flanges threaded onto copper or iron pipe? If so, just swing them where they need to be with some muscle and two pipe wrenches. I'd remove and re-tape and dope the male pipe and wind on the flanges in the correct orientation.

TS

 

[velvetfoot]

Are your original flanges threaded onto copper or iron pipe? If so, just swing them where they need to be with some muscle and two pipe wrenches. I'd remove and re-tape and dope the male pipe and wind on the flanges in the correct orientation.

TS

Thanks, but I'm not sure what you're telling me. Yes, my original flanges are threaded onto a copper fitting. Are you saying I should try swinging them where they should be, or remove them first? I'm thinking it might leak if I don't take it off and redo. Do people tape first and then put a little pipe dope on top of that?

 

[maple1]

Yes.

 

[PassionForFire&Water]

Webstone @ FW Webb, PEXsupply.com

(broken image removed)

 

[BoilerMan]

Thanks, but I'm not sure what you're telling me. Yes, my original flanges are threaded onto a copper fitting. Are you saying I should try swinging them where they should be, or remove them first? I'm thinking it might leak if I don't take it off and redo. Do people tape first and then put a little pipe dope on top of that?

Yes:
Remove
Clean threads if need be
Tape
Dope over tape on male threads
Re-install flanges to suit new circ.

TS

 

[velvetfoot]

Yes:
Remove
Clean threads if need be
Tape
Dope over tape on male threads
Re-install flanges to suit new circ.

TS

The biggest problem, which could always have been worse, was getting the rusted bolts off, even after a night of pickling in PB Blaster.
I wound up not putting dope over the tape, but did put 5 rounds of tape on each.
I like the Taco flanges with its nice adjustable wrench friendliness.
I put the nuts and bolts back in so that it was easy to get at the nut with a socket wrench, which turned out that the bolt head was on the pump flange, which I thought was a good thing anyway.
I got the gasket a little crumpled and unsealing at first, so that's something to look for.

 

[DZL_Damon]

Webstone @ FW Webb, PEXsupply.com

(broken image removed)

Webstones are great! Get them on pexuniverse.com for almost half price of pexsupply.com! I couldn't believe the price difference when I bought them.

 

[Boil&Toil]

I wound up not putting dope over the tape, but did put 5 rounds of tape on each.

I have come to prefer Teflon dope to Teflon tape. Something about picking little shreds of tape out of things, and having less leaks with dope than with tape. YMMV. Also, it's snowing again.

 

[Willman]

I use the teflon dope on the female threads for "motion lotion" with teflon tape on the male side.Not a lot of stray pieces.I smash in the dope deep into the threads so as to not have a surplus oozing out into the fitting.