Left handed thread

ttekushan_2

Funny this should come up now. I'm working in a building loaded with the old wall hung radiators. I have to remove some cracked sections, etc. Fortunately the supply shelves in the boiler revealed a box of 4" long 1-1/2" nipples with RH thread on one side and LH on the other. But I am running out. What to do?

Just try to google "right hand left hand nipples." OK. its not so bad, although I braced myself for, um, unusual listings.

Anyway, here's where I found exactly what I was already using:

http://www.plumbingsupply.com/leftright.html

These may be a bit long for some tastes, but I have found them to be an adequate solution for anything ailing these radiators.

-Terry

Steve_121

Left hand thread

Does anyone know where I might find a 1-1/2" left hand thread black or cast-iron plug. I'm trying to refit an existing old panel type cast-iron radiator for a job.

Thanks for any suggestions
Steve

JohnNY

I'll bet...

...you won't find one.
More likely, you'll find a L/R bushing and a plug.

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Steamhead (in transit)

Left- Hand Thread

Try Googling it. The best I was able to come up with was a nipple 1 1/2" x 4" with left hand/right hand thread used for those areas that don't allow unions in gas lines. Cost me about $25+ , but I needed it to turn a one-pipe wall-hung rad into a two pipe.

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Adam_19

left hand thread

Hi Steve , had a similar problem earlier this year . You can buy a left hand bushing from shafter bros in Montreal , they cost about a 100 canadian .What I ended up doing was taking a left and right hand nipple and cutting off the left hand threads .I welded the left hand thread nipple into the socket weld cap . It ended up costing me about 20 bucks , but if you cant weld it might cost a bit more .

Timco

Buy a scrap rad from a salvage yard & rob the bushing...

T

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c.t.kay

plug

try washington supply,bronx,nyc.

Christian Egli_2

1 1/2 by 11.5 NPT LEFT HAND

Here is a left hand plug I have available. Email me if you wish. mailroom@eglius.com

Jerry_15

I know this sounds wierd, but I watched a smart old guy (I was younger then) run a right hand tap right right down the same hole and re-cut the threads in about five minutes (not even, not much material coming out). He was careful to run the tap way down on the taper, the outer threads were pretty clean. Liberal application of tape and dope (I'd probably use blue glue these days), regular plug, case closed, 15 minutes maybe. 1 1/2 taps aren't cheap, but if you do rad work you probably have a selection on the truck already to chase threads on valve replacements; I do. Of course that plug from Christian looks awfully sexy, and easy. I'll be contacting him myself to see if he has any other good stuff. Good luck.

Jerry_15

By the way, the two hole fastening probably requires a swinging arm two-pin wrench that the yachties use for deck fittings. Check your local marine supply, or just put some tooth marks on the outside. A lot of marine stuff is reverse thread to keep one from putting fuel into the drinking water

Christian Egli_2

Sexy plugs, ooh

A fancy tool is nice, but with two Philips screw drivers, or two dowels, or two whatevers, combined with a pry bar or a third screw driver you can handle the plug quite easily.

Those holes are 1/4 inch

This allowed for a unobtrusive flush finish and flat space for adding a possible 3/4 hole. Square or hex heads are doable too.

Thanks

Mitch_6

In massachusets

you could try PV Sullivan in Quincy, Metropolitan pipe in Boston or Watertown supply in Watertown.

All specialize in funny stuff.

Sorry no ph numbers.

Mitch S.

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Jerry_15

Of course: you can always make up a tool for a one-time shot, and I'm sure my idea of re-cutting the threads rh was terrifying to most. That clean plug is a great easy fix, and one that I would use in a heartbeat. Please send me an e-mail Christian, I would like to know what other products you carry.

thfurnitureguy_4

2\" LHT to 1.25 NPT

Any chance of getting a 2" LHT bushing to a 1.25" NPT RHT???
Need one for a radiator

Adam_20

Get a left hand die from RIDGID and cut the threads 2" or 1 1/2" or whatever size you need then cut the threads off and weld them to a socket weld cap .You can tap the cap for whatever size you need .But if you want it right now Shafter Bros in montreal has them but they are expensive 1OO bucks . Sounds expensive but after screwing around it might be the cheapest alternative.