Float and Thermostatic Steam Trap

GOOD FLOAT AND THERMOSTATIC STEAM TRAP TIME SERIES VIEW
A float and thermostatic trap has two elements: the ball float and the thermostatic bellows. Typically this trap will have a steady modulating flow. This is caused by changes in the motion of the float element as it adjusts to changes in the condensate level. Occasionally the thermostatic element will contract to discharge contaminants such as air.

FLOAT AND THERMOSTATIC STEAM TRAP STUCK OPEN TIME SERIES VIEW
When a “F&T” trap fails it can fail shut or open. If the ball float becomes damaged due to an event such as water hammer, the float will sink and shut the trap. In this instance there will be no sound and the trap will be cold. If the valve is stuck open then steam will rush through. This is an example of steam rushing through.

 

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