Steam used to heat a commercial dishwasher

[stratplus]

Does anyone have any knowledge of using steam through copper pipe?
Can you use solder or will it melt? Can special flexes be used?

 

[Mike Jackson]

I reckon Croppie is your man.

 

[mfgs]

I think you need to use brass fittings and braze them.

 

[stratplus]

Thank you, that's what I thought.
Could use standard compression though??

 

[mfgs]

I don't know. I have limited experience with steam. I only worked on steam pipework once about 6 years ago. The copper part I am sure was all brazed brass fittings, I don't remember using any compression joints.

 

[stratplus]

I need to put a small piece in about 100mm long that's all!! I'm sure I 'll soon find out if it leaks or not!!

 

[dancinplumba]

Does anyone have any knowledge of using steam through copper pipe?
Can you use solder or will it melt? Can special flexes be used?

wouldnt have thought that you could have used these for steam fella

 

[SimonG]

We did all our steam in steel, I think the condense was copper, long time ago

 

[ecowarm]

Pirtek do a steam flexi hose.

 

[Dotty]

You can't use copper on steam except Table Y copper on condense pipework. You can't use standard compression firttings either, they have to be table Y flared fittings.

You're better off hard piping in steel.

What you have to remember is you have steam at 120degC + at a minimum of 4 bar! You get it wrong and peple get badly hurt!

In all honesty I don't touch steam if I can help it. It scares me, the insurance ramifications alone are frightening! If you can palm it off, I'd do so!

 

[mfgs]

Must have been the condense that I was doing in copper then. I remember doing steel aswell, job was spec'd to use stag paste as jointing compound on the thread and it leaked for fun. Spoke to the guys who were installing the steam cleaners and they said use PTFE, so we did and it was fine. When it leaks its pretty damn scary.

 

[Linkyplumb]

Love a bit of steam i do. After all that is what I did for sixteen years

As already stated, steel is your man. Copper only on condense.
Some steam flexis are available but. ££££££.

 

[Linkyplumb]

Must have been the condense that I was doing in copper then. I remember doing steel aswell, job was spec'd to use stag paste as jointing compound on the thread and it leaked for fun. Spoke to the guys who were installing the steam cleaners and they said use PTFE, so we did and it was fine. When it leaks its pretty damn scary.

That is all we use ptfe, on threaded steel

 

[stratplus]

There are flexes on the dishwasher but pretty sure they are made for steam.
Was table y the stronger copper or weaker than the standard table x?
Reason I ask is because tried to undo a extremely tight nut and the copper buckled!! Quite badly tbh!

 

[lame plumber]

wheres fred dibnar when you need him.

 

[stratplus]

Go on then who's Fred Dinbar?

 

[stratplus]

Dibnar even .

 

[stratplus]

This install is reduced down to 1.2 bar for catering appliances. Why can't you use compression out of interest ? At this pressure I would have thought it was ok, the steam run to the appliance is copper with compression gate valves For isolation.

 

[wheeto]

Dibnar even .

Dibnah even.