Steam Traps

Steam Equipment

Condensate Traps

Condensate traps are among the most important components of a steam system. Errors in the selection and design of condensate traps can reduce system efficiency and lead to the rapid failure of the components. Additionally, steam leaks caused by faulty traps can be a significant financial burden for businesses. Therefore, choosing the most suitable condensate trap is one of the biggest steps towards energy savings. Consequently, the design of the system should ensure that the traps function correctly.

It is recommended to use a dirt separator before the condensate trap and a blow-off valve after it. These components not only extend the lifespan of the condensate traps but also ensure the system operates smoothly.

Below is an example of a condensate trap connection diagram, showing the order and type of components that should be installed. Designing according to this diagram is beneficial.

1. Ball Valve                2. Strainer               3. Steam Trap                4. Check Valve               1. Ball Valve

The dirt separator here captures impurities formed by steam condensation in the condensate lines, while the blow-off valve prevents back pressure in the condensate traps, increasing their drainage capacity. It also prevents damage to the traps from backflow caused by vacuum conditions.

We recommend paying attention to the diagram when installing condensate traps.

We can explain steam traps by reviewing their working principles as follows:

Thermostatic Condensate Trap

These traps, also known as capsule traps, can discharge condensate that is 10 to 30°C below the evaporation temperature. For example, in processes with 6 bar pressure where the evaporation temperature is 165°C, these traps discharge condensate below 135°C. Condensate above this temperature remains in the system and forms a layer that hinders heating. A 1 mm thick water film's resistance to heating is approximately equal to that of 0.5 meters of copper. Therefore, especially in systems with coils, it is crucial to remove the water immediately.

This water layer not only prevents heating but also causes "water hammer" effects, leading to damage in connection fittings and coils.

Inverted Bucket Condensate Trap

These traps discharge condensate immediately upon formation but are inadequate for removing air. Since air is a much stronger insulator than water, the air that cannot be removed significantly delays heating. A 1 mm thick air film's resistance to heating is equivalent to that of 13 meters of copper. Additionally, since steam cannot enter an area filled with air, the steam volume decreases, affecting efficiency.

Float Type Condensate Trap

The float type condensate trap removes air from the system thanks to its built-in air vent. It also accelerates system heating by removing condensate as soon as it forms with the help of the float. The discharge temperature is the same as the steam temperature. Due to these features, float type traps are the most suitable for systems with coils/plates, air conditioning plants, paint machines, and rotary calenders.

Thermodynamic Condensate Trap

Preferred for its robust construction, this type of trap is used in main steam lines, end of lines, and collectors. It is highly efficient in terms of thermal performance as it discharges condensate immediately upon formation. Therefore, this type of trap should be used at the end of lines and in collectors to ensure effective drainage.