Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Eric Svendson
 
Posts: n/a
Default Drill/Tap NPT in Brass Boiler

Good Morning -

Thinking about drilling and tapping my espresso machine boiler (top surface)
for a thermocouple installation - either 1/16 or 1/8 NPT. While it would be
ideal if there were a "boss" that gave me, say, 3/8 or 1/2" wall thickness,
I'm thinking that the boiler's top wall is only about 1/8" thick. Any
tips/tricks you can think of would be appreciated.

Eric S.


  #2   Report Post  
Tim Shoppa
 
Posts: n/a
Default Drill/Tap NPT in Brass Boiler

While it would be ideal if there were a "boss"
that gave me, say, 3/8 or 1/2" wall thickness,
I'm thinking that the boiler's top wall is only about 1/8"
thick. Any tips/tricks you can think of would be appreciated.


Drill a hole and solder or braze on a small brass pipe fitting? Sounds
easier to me than tapping a piece of sheet metal...

Tim.

  #3   Report Post  
Brian Lawson
 
Posts: n/a
Default Drill/Tap NPT in Brass Boiler

On Fri, 21 Oct 2005 09:19:42 -0400, "Eric Svendson"
wrote:

Good Morning -

Thinking about drilling and tapping my espresso machine boiler (top surface)
for a thermocouple installation - either 1/16 or 1/8 NPT. While it would be
ideal if there were a "boss" that gave me, say, 3/8 or 1/2" wall thickness,
I'm thinking that the boiler's top wall is only about 1/8" thick. Any
tips/tricks you can think of would be appreciated.

Eric S.

XXXXXXXXXXXXXXXXXXXXX

Hey Eric,

For a thermo-couple? Why? Just surface mount it.

If it IS necessary to pierce the boiler, then make an oval hole, an
oval "brass" piece of somewhat larger dimensions than the hole with
the tapped hole you require already in it, pass the oval through the
hole "sideways" and turn in situ to suit, then either clamp it on
externally, or silver solder/braze it (if you can do so with what I
assume will be a "dirty" surface). Ever see a "clean-out plug"??

I would probably do "more" than I've stated, but you get the idea. If
this is form commercial use, be aware of your liability.

Take care.

Brian Lawson,
Bothwell, Ontario.

  #4   Report Post  
Eric Svendson
 
Posts: n/a
Default Drill/Tap NPT in Brass Boiler

Thanks for suggestions.

ES

"Eric Svendson" wrote in message
...
Good Morning -

Thinking about drilling and tapping my espresso machine boiler (top
surface) for a thermocouple installation - either 1/16 or 1/8 NPT. While
it would be ideal if there were a "boss" that gave me, say, 3/8 or 1/2"
wall thickness, I'm thinking that the boiler's top wall is only about 1/8"
thick. Any tips/tricks you can think of would be appreciated.

Eric S.



Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Non-modulating condensing boilers? Egremont UK diy 34 July 22nd 05 07:02 PM
Condensing Boiler News RedOnRed UK diy 0 April 9th 05 05:37 PM
Mixing header and pumps John Aston UK diy 79 December 8th 04 09:50 AM
Noisy banging boiler what is the cause? Tim UK diy 8 November 3rd 04 09:36 PM
Seal? Brass screw fitting to cast iron boiler FrancisJK UK diy 4 March 24th 04 12:55 PM


All times are GMT +1. The time now is 07:22 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"