Boiler gauge glass

[ScrumpyParticipant @scrumpy]

hi on my 3 in Marshall roller the gauge glasses are in a position were they could be broken what protectors do people use ( ie tough glass steel mesh etc)

[ScrumpyParticipant @scrumpy]

[JasonBModerator @jasonb]

Often a small plate is fixed at each end of the fittings that can screw on before the nut on a small scale one. These plates are drilled in teh corners and threaded rods sliped through teh holes and retained with a small nut each end. On full size or larger models the plates clamp onto thhe nuts with a grub screw and have slots in them to take pieces of toughened glass, like these

Other options are to fit a square or round brass tube that the glass can fit inside and then mill a slot into the side so you can see the water level

[MichaelRParticipant @michaelr]

On my 3" Marshall I made the protectors from square brass bars similar to Jason's suggestion milled out to fit over the nuts and glass, they are held in place by tie bars behind the nuts so you can remove them easily. Mike.

[ScrumpyParticipant @scrumpy]

Many thanks for all your information I do so like Michaelr picture as this is on a Marshall it seems like the way I should proceed thank you

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