Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Builds, Repairs, Show Your Machines! => Technical Tips, Builds, and Help => Topic started by: Aerostar55 on August 09, 2021, 02:32:56 pm

Title: Re: Boiler fitting thread sizes
Post by: komet163b on August 26, 2021, 01:25:44 pm

Thanks for the info.  It took a bit of doing,
and adding the s/w to open it, but now I have
it. 

Thanks,
Wayne

Title: Re: Boiler fitting thread sizes
Post by: Weedensteam on August 22, 2021, 09:43:11 am

This may be of some help thanks to Jim:

https://www.officeofsteamforum.com/members-file-sharing-board/toy-model-steam-engine-thread-sizes/

Title: Re: Boiler fitting thread sizes
Post by: Weedensteam on August 12, 2021, 10:13:57 am

I just make up separate ones for whatever boiler I am connecting to air, seems to me the Mamod forum had a list of boiler threads, etc.

Title: Boiler fitting thread sizes
Post by: Aerostar55 on August 09, 2021, 02:32:56 pm

Is there a list of thread sizes for the different manufacturers boiler fittings such as Whistle, pressure relief valve and steam outlet?

I know a common thread used is 4-40, and I measured a Wilesco small boiler and it was 6mm.   Weeden used a standard 1/4" - 32 MPT (Model Pipe Thread) for all the boiler fittings.

I want to make a proper fitting to use compressor air to power some of my engines.