What is a cold steam trap?

What is a cold steam trap?

A cold steam trap is a trap that’s not opening, and has failed closed. Condensate cannot discharge, and if condensate is not discharging, the steam system will not heat. It will back up in the trap and the transfer of latent heat will stop. A failed bellows assembly is more than likely the problem.

What temperature should a steam trap be?

Determining whether the steam trap station is operational For example, in Figure 2, the temperature on the steam line entering the process is 299°F; therefore, the steam trap body temperature should be at or close to the inlet temperature. This is a true statement for 96% of the steam process applications.

Do you need a check valve after a steam trap?

Steam traps – Other than with steam traps discharging to atmosphere, check valves should always be inserted after a steam trap to prevent back flow of condensate flooding the steam space. The check valve will also prevent the steam trap from becoming damaged by any hydraulic shock in the condensate line.

Where are steam traps needed?

In Front of Manual Valves Closed for a Long Time Similarly, a steam trap is needed at the end of a pipe run (end of main) to help drain the system for safe and effective operation.

What happens if a steam trap fails?

A Steam traps fails open When a steam trap fails open, it simply acts like an open valve and hence, a lot of steam would leak through it. As a result, the overall steam consumption of the plant will go up, reducing the efficiency of the operation.

Where Should steam traps be located?

Locate the steam trap below the lowest condensate discharge point of the equipment. Never install a rise in the pipe ahead of a steam trap. Check valves should be installed after the steam traps in most applications.

Where does steam from steam trap go?

There are many types of steam traps (Learn about the four primary ones here), but they all serve the to keep steam in the “steam loop” while extracting condensate (and air) and redirecting it to the “condensate loop.” The condensate loop usually feeds into a tank, and from there the water is either processed and …

That once slow rising plume of steam out of the condensate stacks either starts to increase and jet out constantly and uncontrollably (stuck open) A cold steam trap is a trap that’s not opening, and has failed closed.

What causes a cold steam trap to stop working?

A cold steam trap is a trap that’s not opening, and has failed closed. Condensate cannot discharge, and if condensate is not discharging, the steam system will not heat. It will back up in the trap and the transfer of latent heat will stop. A failed bellows assembly is more than likely the problem.

Where are steam traps located in a steam distribution system?

With an overall understanding of steam traps, it is appropriate to discuss where steam traps are located within a steam distribution system and how trap sizing affects the system. Steam traps in HVAC applications are generally found in two locations: drip traps and at process equipment.

How do I maintain my steam trap?

All steam traps need proper maintenance. Establish a maintenance calendar and adhere to it. Regularly scheduled maintenance can identify and anticipate problems. External visual inspections can reveal signs of corrosion and leakage.