cap for steam....

kcopp

How do you cap a 2" steel steam line w/o the use of a threaded cap? got 2 " line that is out of shape and the die won't fit on..... ty,kpc

nicholas bonham-carter

capping distorted pipe

can you find some way to put in an internal plug [wood, rubber, plastic]? then drill the end to secure the plug with a bolt. alternatively, maybe there is a rubber cap for vent stacks in that size, which is secured by a screw clamp.

cranking down the pressure to a few ounces would be very important to prevent the plug from being fired out, a la potato cannon!--nbc

jpf321

maybe...

theytry fire rated expanding foam. you can secure it with sticks of plumbers epoxy, the kind that hardens like steel. although I'm not sure what effects stream has on expanding foam. you wouldn't want it to dissolve into your boiler. does a soda can fit inside thee pipe?

TomM

plug?

plugging it with something sounds kinda ghetto.  If you aint gonna run new threads on the pipe, weld it. 

Big-Al_2

McMaster Sells An Expansion Plug

McMaster-Carr sells an expansion "Test" plug for 2" pipe.  It's rated for 225 degrees. I attached a pdf of the catalog page.  I'm not sure how long it would last.



2554K75

Bolt-Tight High-Pressure Test Plug for Pipe ID 1.73" to 2.07"

In stock at $33.64 Each



If it were mine, I'd get a weld-on cap.

LarryC

Shorten the pipe and rethread.

If there is room, cut the pipe back and rethread?

kcopp

I would but....

There is only 3" to work w/... and that is partially out of wack. The bolt on type would probabaly work....ty

Charlie from wmass

Remove the pipe stub.

The temp caps are just that and I know of none rated for steam. Take it out as you would a radiator spud from the fitting it is in and use a pipe plug.

Long Beach Ed

As Charlie says...

... the only way is the right way.  Cut the nipple out with a Sawzall, cutting a slot or two in it internally to loosen and insert a plug.