Fitting a pressure gauge

Fitting a pressure gauge

This topic has 9 replies, 5 voices, and was last updated 20 August 2015 at 20:33 by nigel jones 5.

Viewing 10 posts - 1 through 10 (of 10 total)

Author

Posts
20 August 2015 at 11:34 #201102
Howard Lyne
Participant
@howardlyne10956
I want to replace the pressure gauge on a boiler but am puzzling over how to fit the olive which is meant to be sleeved inside the syphon pipe. Its OD seems to be 3/32" which is too large for sleeving inside 1/8" pipe and a sloppy fit in 5/32" pipe. Do I enlarge the 1/8" pipe somehow or just fill up the gap with solder on the 5/32" pipe. Also any tips on avoiding soldering the nut would also be welcome.
Advert

20 August 2015 at 11:34 #7762
Howard Lyne
Participant
@howardlyne10956
20 August 2015 at 12:04 #201109
JasonB
Moderator
@jasonb
Can you post a picture, most model engine pipework uses a ferrule or nipple that is soldered to the pipe.

J
20 August 2015 at 13:22 #201121
Howard Lyne
Participant
@howardlyne10956
Jason

The gauge (1 inch diam) is pictured in most ME catalogues, e.g. Polly Engineering and Blackgates. The olive/ferrule/nipple clearly needs to be sleeved inside the copper pipe before soldering rather than over it.
20 August 2015 at 13:34 #201122
JasonB
Moderator
@jasonb
Howard a 1" gauge is usually plumbed in with 1/16" pipe which will fit INSIDE the brass nipple supplied

Some thing like this one from Macc Models

Here is one of mine, OK its sitting on a 1/16" drill bit but thats how they fit to copper pipe, if you want to run a larger pipe then you will have to make an adaptor

Edited By JasonB on 20/08/2015 13:45:23
20 August 2015 at 13:44 #201123
Howard Lyne
Participant
@howardlyne10956
Thanks Jason, no wonder I'm struggling. I probably read the term "sleeve" somewhere and misinterpreted it. I was also probably mislead by the pipework (1/8&quot on the old gauge I'm replacing. Now to order some 1/16" pipe!
20 August 2015 at 13:45 #201125
Howard Lyne
Participant
@howardlyne10956
Sorry about the emoticon in the previous post – how did I do that?
20 August 2015 at 16:56 #201135
mechman48
Participant
@mechman48
Howard

I find that if you double space at the end before you put the last parenthesis ( bracket ) in usually works

George.
20 August 2015 at 17:32 #201139
Neil Wyatt
Moderator
@neilwyatt
It's " next to ) that causes the problem.

Neil
20 August 2015 at 20:33 #201160
nigel jones 5
Participant
@nigeljones5
I liked it !
Author

Posts

Viewing 10 posts - 1 through 10 (of 10 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- New (but well aged) member
  Started by: mikemunson in: Introduce Yourself – New members start here!
- 6
- 6
- 10 July 2025 at 09:23
  Dell
- I’m Under Pressure
  Started by: howardb in: Related Hobbies including Vehicle Restoration
- 15
- 17
- 9 July 2025 at 22:39
  duncan webster 1
- Bosch PBD 40 bearing upgrade
  Started by: th1980 in: Manual machine tools
- 5
- 11
- 9 July 2025 at 22:00
  th1980
- Sat nag
  Started by: duncan webster 1 in: The Tea Room
- 11
- 20
- 9 July 2025 at 21:48
  bernard towers
- Farm Boy 1 2 3 4
  Started by: Dalboy in: I/C Engines
- 15
- 100
- 9 July 2025 at 20:58
  Dalboy
- Bearing boxes for ball race
  Started by: Paul McDonough in: Beginners questions
- 11
- 20
- 9 July 2025 at 20:38
  old mart
- Twin Engineering’s heavy mill/drill quill removal 1 2
  Started by: Martin of Wick in: Manual machine tools
- 11
- 34
- 9 July 2025 at 19:42
  old mart
- Easiest/cheapest source of R8 socket
  Started by: Beardy Mike in: Workshop Tools and Tooling
- 7
- 9
- 9 July 2025 at 19:31
  old mart
- Transwave converter – plugged in motor, tripped RCD
  Started by: ell81 in: Beginners questions
- 7
- 9
- 9 July 2025 at 19:17
  old mart
- Square end on round stock – Milling? 1 2
  Started by: Roger TheShrubber in: Workshop Tools and Tooling
- 16
- 28
- 9 July 2025 at 15:39
  JasonB
- File backup to external hard drive, incremental etc?
  Started by: Peter Bell in: The Tea Room
- 11
- 17
- 9 July 2025 at 13:50
  Graham Stoppani
- Boiler Design – issue 4765 1 2 … 7 8
  Started by: Charles Lamont in: Model Engineer & Workshop
- 26
- 186
- 9 July 2025 at 12:28
  Paul Kemp
- motor and switch wiring Myford ML7
  Started by: 1957jmh in: Workshop Tools and Tooling
- 3
- 4
- 9 July 2025 at 00:41
  1957jmh
- Taylor Hobson cutter grinder modificaton 1 2
  Started by: David George 1 in: Workshop Tools and Tooling
- 9
- 34
- 8 July 2025 at 23:53
  Bazyle
- Old plastic handled screwdrivers
  Started by: Dave Halford in: Workshop Tools and Tooling
- 9
- 10
- 8 July 2025 at 18:48
  bernard towers
- Angle grinder woes
  Started by: Speedy Builder5 in: Workshop Tools and Tooling
- 5
- 8
- 8 July 2025 at 18:26
  DC31k
- in line oil check valve
  Started by: Garry Coles in: General Questions
- 5
- 5
- 8 July 2025 at 18:05
  salatipa
- Chester Champion, warco ZX15 drawbar
  Started by: martian in: Manual machine tools
- 4
- 6
- 8 July 2025 at 16:49
  martian
- Bridgeport ways and wear
  Started by: inline in: Manual machine tools
- 6
- 17
- 8 July 2025 at 15:44
  duncan webster 1
- Drilling holes in blades?
  Started by: Bo’sun in: The Tea Room
- 8
- 20
- 8 July 2025 at 15:28
  Bazyle
- Need help choosing a lathe chuck 1 2
  Started by: th1980 in: Workshop Tools and Tooling
- 21
- 38
- 8 July 2025 at 13:30
  JasonB
- After all these years … I fell for a scam :(
  Started by: Michael Gilligan in: The Tea Room
- 4
- 6
- 8 July 2025 at 12:58
  Robert Atkinson 2
- Bentley BR2 Rotary Aero Engine
  Started by: notlobgp14 in: Miscellaneous models
- 5
- 9
- 8 July 2025 at 10:42
  peter alcock
- Starrett and other tool manufacturer wood boxes
  Started by: Ian Owen NZ in: Workshop Tools and Tooling
- 12
- 19
- 8 July 2025 at 10:28
  Ian Owen NZ
- I found this old car but what is it? 1 2 3
  Started by: Buffer in: Related Hobbies including Vehicle Restoration
- 34
- 54
- 8 July 2025 at 10:17
  matthewwatts

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

July 2025

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies