How to tell if Steam Trap is Bad?

Dairon421

Hey i was just wondering what are some ways to trouble shoot steam traps

JohnNY

Check temperature differential between inlet and outlet. It can be tricky at different points during the heating cycle but there should generally be a 10° difference.
I use a sonic measuring tool that listens to the trap opening and closing. Or not.

JUGHNE

The cheapest ($350) FLIR gun has been my best tool for this.
Especially if you can follow the return pipe for a foot or 2 away from the trap.
BTW, this is for rad traps not F&T.

Has anyone tried the doctor stethoscope on the traps for the sound?

ariccio

A mechanic's stethoscope seems to work as well as the super expensive ultrasonic sensor that I've read are used industrially.