Pressure gauge pipe

[Deleted]

Now that it seems safe to post again to this section , can I ask advice on the following:

Modelworks have supplied a 5/32" pipe to run from the manifold to the pressure gauge, but the pressure gauge has a fitting suitable for a 3/32" pipe. Would a 3/32" pipe be large enough for the complete run from manifold to gauge? It would look neater. Also, I've heard mention of a 'syphon loop' in the pipe beneath the pressure gauge - I assume that this is simply a loop in the ordinary pipe, rather than a special fitting? What is this for, and how deep does it need to be? There's no mention of it in the Modelworks instructions.

Regards,

John

[mutley]

Hi JJ
The smaller 3/32" pipe should okay, just be carefull when soldering the pipe ends on as it becomes very easy to block the pipe at that size. A syphon loop is usually a coil in the pipe designed to condense a small amount of steam and protect the delicate movement from damage. In practice I have never found it to have much effect in our size so just put a healthy U bend in instead.

[Shawki Shlemon]

I use 5/32 pipe from manifold , at the other end I silver solder a very short piece of 3/32 pipe into it ending in tail and nut for the gauge normally 3/16-40 . as mutely says a U tube before the gauge is all you need for water condensation .