Tube runs for injectors

Tube runs for injectors

This topic has 3 replies, 3 voices, and was last updated 24 January 2025 at 15:39 by noel shelley.

Viewing 4 posts - 1 through 4 (of 4 total)

Author

Posts
24 January 2025 at 11:11 #779591
Michael Callaghan
Participant
@michaelcallaghan68621
Well I am almost at the stage of thinking about injectors. The twin clack valve is at the top of the boiler around 3 inches back from the smokebox. The tubes need to run down the sides of the boiler to the running boards. And here things get tricky. The model by the way is a 5inch gauge royal Scot. My only option I think is to fit a 90 degree bend which will be fit nicely behind the name plate and then run the tubes along the running boards to another 90 degree bend which will take the tube down to a 3rd bend and into the injector. My fear is that 90 degree bends are not a great idea within injector tubing. But I can’t imagine any other path. It’s very busy between the frames and then I would still need 90 degree bends to clear the firebox grate. As anyone got 90 degree bends in their injector pipe work and are you ok with it. Thanks
Advert

24 January 2025 at 11:21 #779601
Baz
Participant
@baz89810
Shouldn’t have problems with 90 degree bends, keep the bends as big a radius as possible. The problem comes when using elbows.
24 January 2025 at 12:47 #779639
Michael Callaghan
Participant
@michaelcallaghan68621
Thanks, looks like I need to make a bending tool now
24 January 2025 at 15:39 #779692
noel shelley
Participant
@noelshelley55608
You do not mention what size of pipe and though I expect 8mm to be way to large, 8mm end fed swept elbows are available at about £4 for 10. Noel.
Author

Posts

Viewing 4 posts - 1 through 4 (of 4 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
- ME 4761 – Sirius Piston Valve C**k up Corner 1 2
  Started by: Charles Lamont in: Model Engineer.
- 12
- 37
- 24 January 2025 at 23:21
  Charles Lamont
- Had Another Go 1 2 … 11 12
  Started by: Nigel Graham 2 in: CAD – Technical drawing & design
- 21
- 291
- 24 January 2025 at 22:46
  Nigel Graham 2
- Motor query for 3 phase VFD conversion 1 2
  Started by: Mark Slatter in: Manual machine tools
- 16
- 34
- 24 January 2025 at 21:44
  Robert Atkinson 2
- Stanley knives 1 2
  Started by: old fool in: The Tea Room
- 19
- 27
- 24 January 2025 at 21:21
  Nicholas Farr
- Puzzle
  Started by: Vic in: The Tea Room
- 3
- 6
- 24 January 2025 at 20:36
  Plasma
- how many times do you have to accept cookies before the nag gets out of the way
  Started by: Chris Kaminski in: Website Questions, Comments, and Suggestions
- 5
- 7
- 24 January 2025 at 20:34
  Chris Kaminski
- Hemingway Kits
  Started by: James Hall 3 in: General Questions
- 3
- 3
- 24 January 2025 at 20:09
  bernard towers
- NEW LOOK – Model Engineer & Workshop 1 2 3 4
  Started by: sohara in: Model Engineer & Workshop
- 35
- 87
- 24 January 2025 at 20:03
  bernard towers
- Brian’s 1″ Minnie Traction Engine 1 2 … 13 14
  Started by: Brian Abbott in: Traction engines
- 38
- 331
- 24 January 2025 at 19:52
  Brian Abbott
- What Did You Do Today 2025 1 2
  Started by: JasonB in: The Tea Room
- 15
- 31
- 24 January 2025 at 19:45
  Clock polisher
- Crimson lake royal Scot
  Started by: Michael Callaghan in: General Questions
- 5
- 5
- 24 January 2025 at 19:33
  Nicholas Farr
- Dead DRO 1 2
  Started by: Steve Rowbotham in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 10
- 35
- 24 January 2025 at 19:27
  Steve Rowbotham
- CAD – Target Enigma 1 2 3
  Started by: SillyOldDuffer in: CAD – Technical drawing & design
- 17
- 55
- 24 January 2025 at 19:24
  SillyOldDuffer
- Transistor Circuit to Operate Relay from Arduino Uno
  Started by: James Alford in: Electronics in the Workshop
- 10
- 17
- 24 January 2025 at 17:52
  Michael Gilligan
- DC MOTOR TO GENERATOR
  Started by: Dougie Swan in: Electronics in the Workshop
- 4
- 9
- 24 January 2025 at 17:33
  John Haine
- Gear train on a Warco 290V lathe
  Started by: peter spain in: General Questions
- 3
- 6
- 24 January 2025 at 17:30
  peter spain
- Engineers Black Book
  Started by: Me. in: General Questions
- 6
- 7
- 24 January 2025 at 17:28
  Bo’sun
- Digital Issues – what do you get?
  Started by: doubletop in: Subscription issues and Digital magazines
- 9
- 11
- 24 January 2025 at 17:17
  jimmy b
- Linux Mint – but with problems 1 2
  Started by: lekmir in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 13
- 27
- 24 January 2025 at 16:53
  Ian P
- Tube runs for injectors
  Started by: Michael Callaghan in: Locomotives
- 3
- 4
- 24 January 2025 at 15:39
  noel shelley
- Unkown micrometer manufacturer 1 2 3
  Started by: Tomk in: Workshop Tools and Tooling
- 15
- 64
- 24 January 2025 at 14:53
  peak4
- Discussion on the Future Direction of Model Engineer and Workshop 1 2 … 10 11
  Started by: Neil Wyatt in: Model Engineer.
- 65
- 255
- 24 January 2025 at 10:30
  JasonB
- The sound of swarf
  Started by: Dave S in: General Questions
- 3
- 4
- 24 January 2025 at 09:02
  larry phelan 1
- Flashing Multiple LEDs at the Same Time
  Started by: James Alford in: Electronics in the Workshop
- 5
- 25
- 24 January 2025 at 08:11
  James Alford
- Sieg KX3 USB
  Started by: Matt Harrington in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 3
- 7
- 23 January 2025 at 16:42
  Matt Harrington

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

View full reply list.

Latest Issues

Issue 4761

February 2025

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies