What is the best way to test a steam trap?
A. There are several methods that can be used depending on the type of trap you have: 1) the most accurate test for all types is visual inspection of what is coming through the trap, 2) use a test valve in the trap outlet tapping, 3) listen to sounds in the trap while using an automotive type stethoscope or an ultrasound device (traps that are blowing steam will have a hissing sound and traps that are passing condensate will have a gurgling sound), 4) instantaneous thermometers work well on thermostatic traps, 5) use a stethoscope to listen to bucket traps and thermodisc traps cycle open and shut.
