Vacuum filling diaphragm seal and gauge (Bordon tube)

[@joeltop2914]

I started working at the gauge shop Troy (so I'm working with that same set up), just wanted to say hi!

[@joeltop2914]

I also had a question: what are you using for sealing the gauge to the top housing? Is it vacuum seal or loctite?

[@equesvasil9504]

​@@joeltop2914 Hello, me too filling diaphragm seals and pressure gauges and i am personally using copper gaskets and loctite. Can i ask: why you need that magnetic stirrer with heater in filling station?

[@abdel-rahmanrashad3055]

Could you show us that tool connected to the diaphragm seal during filling ?

[@wismaranton4525]

Do you have a model of vaccum pump, which options do you recommend for this work?

[@alejandrosantiago6080]

This could be used for show the pressure on a control board, lets say 2m from the sensing point, correct?

[@wnswmo]

the application of this hole is inject the silicon oil? this hole size is M5?

[@hamedloryai5346]

Hello, engineer, is it possible to send me the tutorial in PDF format, in this case, no matter how much I watch the video, I don't understand.

[@wnswmo]

we are the manufacture of the flange diaphragm and the metal diaphragm

[@dipopendopo3522]

I did the filling but its accuracy is lost, how to keep it

[@troyblaine]

The seal should not add more than +/- 0.5% error. If there is air trapped in the system accuracy will be lost, as the air is compressible and the fluid is not. Gauges below 15 PSI will require a high displacement seal. Also if you are trying to mount a low pressure bellows type gauge a thinner cst silicone will help (such as 10 cst). Gauges on seals will have a hard time measuring vacuum below -25"Hg. Also glycerin will not work as a fill in vacuum service.

[@dipopendopo3522]

Ok Troy, thank you for explanation

[@Warisjamil786786]

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