1.) Def: It is a valve Device that discharges condensate and air from the steam lines without discharging the steam.
In order to obtain the fast heating of the product and equipment.
Discharge condensate as soon it is formed.
Does not allow steam to escape.
Must discharge air and other incondensable gases
3.) Types of Steam Traps
It is operated by changes in fluid density.
It is operated by the changes in fluid Dynamics.
It is operated by changes in fluid Temperature.
A.) Mechanical Steam Trap (Inverted Bucket Trap)
Can withstand high pressures
Tolerates water hammer
Suited for superheated steam lines
Safer because failure mode is open
Trap body must always have enough water
Water seal loss by De-superheated steam
Can be damaged by freezing
B.) Thermodynamic Steam Trap
C.) Thermostatic Steam Trap
4.) Points to be kept in mind while installing Steam Traps
Condensate picked up by moving steam
Can damage steam trap
Continuous slope in flow direction reduces this
Affects steam trap performance
Helps to remove dirt
Can occur in rotating machinery
Only float trap has ‘steam lock release’ valve
Correct pipe size – traps affected by resistance to flow
Avoid pipe fittings close to trap – back pressure risk
Important for system warm up and operation
5.) Performance Assessment of Steam Traps
Sound Testing – Ultrasonic Leak detectors
Temperature Testing – Temperature Guns, Thermal Chalks