To avoid these ads, REGISTER NOW!

Does this fitting exist? 90 deg 3/4 MIP to 3/4" copper sweat?

TT_Vert

Well-known member
Joined
Mar 9, 2018
Messages
1,436
Location
Wauconda, IL.
I have a tight spot that I need to reduce the size of the fitting in a radiant heat manifold union which swivels so orientation won't be an issue. Right now it's 3/4" MIP (I think, i always get these wrong it seems but the OD of the threads is 1.295") to 3/4 copper sweat w/a stub to a 90. If I can find this fitting I may save myself a good 2" here. We always need another good 2".


Thanks
Dave
 
Last edited:
To avoid these ads, REGISTER NOW!

Jackfre

Well-known member
Joined
Dec 26, 2010
Messages
4,411
Location
N CA
If you are unable to come across a “3/4 sweat x 3/4 male adapter 90” you could go with a 3/4 sweat street fitting and sweat a 3/4 male adapter onto it.
 
OP
T

TT_Vert

Well-known member
Joined
Mar 9, 2018
Messages
1,436
Location
Wauconda, IL.
If you are unable to come across a “3/4 sweat x 3/4 male adapter 90” you could go with a 3/4 sweat street fitting and sweat a 3/4 male adapter onto it.

That's not a bad idea actually and I don't give up too much doing that vs. what is sure to be a very expensive fitting. But if I could get rid of 2 pieces ( a 1" MIP to 3/4" sweat and the 3/4" street elbow) with one fitting that screws right into the 1" female port in the manifold I'd like to do that.

I suppose I can try to do away w/ the 1 1/4" to 1" reducer into the manifold and find a 1 1/4 MIP to 3/4" copper sweat to 3/4" street elbow also.
Thanks

Dave
 
Last edited:

welder4956

Well-known member
Joined
Apr 8, 2010
Messages
3,072
Location
Birmingham, AL USA
I have a tight spot that I need to reduce the size of the fitting in a radiant heat manifold union which swivels so orientation won't be an issue. Right now it's 3/4" MIP (I think, i always get these wrong it seems but the OD of the threads is 1.295") to 3/4 copper sweat w/a stub to a 90. If I can find this fitting I may save myself a good 2" here. We always need another good 2".


Thanks
Dave

The OD on 3/4" pipe is 1.050" and 1" pipe OD is 1.315". I think you are looking for a 1" MNPT to 3/4" copper sweat.

This should be the one you are looking for:
https://www.supplyhouse.com/Elkhart-30336-3-4-x-1-Copper-x-Male-Adapter?gclid=Cj0KCQjwmIuDBhDXARIsAFITC_4MYc771vGBPdRle9hm6IWPRMGkwPHwjBHk7TeRlz7m_QWaege20L4aAvphEALw_wcB
 
OP
T

TT_Vert

Well-known member
Joined
Mar 9, 2018
Messages
1,436
Location
Wauconda, IL.
Thank you. I'm not too happy with what looks to be quite the restriction on that one elbow. I am just going to go w/ the street elbow as when I went to HD and was threading this into 1 1/4' fittings (Yeah it was bigger than I thought) it didn't seem to thread in as far as I'd like it to. It could just have been the threads were a bit dirty on my part but I can't risk screwing up the threads on this manifold. So it "appears" that the manifold out is a 1 1/4" female coupler and my pipe is actually 1". I really do assume these manifolds are all NPT but I really don't know for sure. Do you guys?

Dave
 

brewchief

Well-known member
Joined
Sep 20, 2008
Messages
2,370
Location
Michigan
Thank you. I'm not too happy with what looks to be quite the restriction on that one elbow. I am just going to go w/ the street elbow as when I went to HD and was threading this into 1 1/4' fittings (Yeah it was bigger than I thought) it didn't seem to thread in as far as I'd like it to. It could just have been the threads were a bit dirty on my part but I can't risk screwing up the threads on this manifold. So it "appears" that the manifold out is a 1 1/4" female coupler and my pipe is actually 1". I really do assume these manifolds are all NPT but I really don't know for sure. Do you guys?

Dave
Not all are NPT, some are metric and require adapters, what brand are they?

Sent from my SM-T510 using Tapatalk
 
To avoid these ads, REGISTER NOW!

HVACR1

Active member
Joined
Mar 15, 2021
Messages
28
Location
home
I have a tight spot that I need to reduce the size of the fitting in a radiant heat manifold union which swivels so orientation won't be an issue. Right now it's 3/4" MIP (I think, i always get these wrong it seems but the OD of the threads is 1.295") to 3/4 copper sweat w/a stub to a 90. If I can find this fitting I may save myself a good 2" here. We always need another good 2".


Thanks
Dave

Dave, without seeing the space you are working with, and assuming this is a low temp radiant heat set up (90 to 140 deg F) have you considered using a SharkBite fitting? They are rated up to 200 deg F for copper piping, (installing on Pex, might be different due to temp limitations of some Pex) and we have used them for several years without a failure. There are mixed opinions about using SharkBites, but if installed correctly and in the right application they are a time and space saver.
 
OP
T

TT_Vert

Well-known member
Joined
Mar 9, 2018
Messages
1,436
Location
Wauconda, IL.
Dave, without seeing the space you are working with, and assuming this is a low temp radiant heat set up (90 to 140 deg F) have you considered using a SharkBite fitting? They are rated up to 200 deg F for copper piping, (installing on Pex, might be different due to temp limitations of some Pex) and we have used them for several years without a failure. There are mixed opinions about using SharkBites, but if installed correctly and in the right application they are a time and space saver.

Yeah this is low temp just for radiant flooring, no DHW. I looked into sharkbite but I'm going to a rigid copper for this fitting, not PEX. At 1" all of these fittings are a bit expensive.

Dave
 

tim980

Member
Joined
Apr 22, 2021
Messages
6
Location
Miami
In the event that you can't go over a "3/4 perspiration x 3/4 male connector 90" you could go with a 3/4 perspiration road fitting and sweat a 3/4 male connector onto it.
 

Sumboodie

Well-known member
Joined
Mar 20, 2021
Messages
10,699
Location
AK
In the event that you can't go over a "3/4 perspiration x 3/4 male connector 90" you could go with a 3/4 perspiration road fitting and sweat a 3/4 male connector onto it.

Perspiration road?
 
To avoid these ads, REGISTER NOW!
Top Bottom