hai
I have some questions regarding instrument connections on a header (i.e.: thread-o-let or sock-o-let or half coupling). I heard that for temperature gauges we should use only thread-o-let because the thermowell will go to the center of header like that, what do I need for the connection for pressure gauge & other instruments? And more over can you please tell me the difference between TI, TG, TT whether we have to provide any upstream & downstream distance for these instruments (expect orifice)