Mechanical Steam Traps

FLOAT STEAM TRAPS

Operation Principals;

While the system is cool, the coming air is discharged from the discharge unit. As the condensate enters the steam trap, float rises with the effect of density difference and activates discharge by opening the valve. As the temperature of condensate increases, air discharge unit closes, just because the float has already been risen, condensate discharge continues.

When the steam gets in the steam trap, float drops down and discharge valve system closes. The condensate level in body is always above the valve creating perfect water seal. Steam traps with thermostatic air vents are able adjust themselves according to unsteady pressure loads.

Operation principals enable float type steam traps to work at heat exchangers, evaporators and heaters with high efficiency.

Advantages of Float Type Steam Traps:

1- Automated Systems: The most ideal steam trap for automated systems.
2- Operation At Very Low Pressure Difference: With the adaptability to the systems with very low pressure difference and high discharge capacity, can meet the expectations.
3- Orifice According To Pressure Difference: 3 different type of orifice (14,10 and 4,5) provides the most suitable selection feature according to system conditions.

Disadvantages of Float Type Steam Traps:

1- Water Hammer: At the sudden loads or when the air formations create shock pressures, the float mechanism may get damaged and breaks the operation of the steam trap downs.
2- Air Vent and Super-Heated Steam: Super-heated steam may damage the thermostatic air vent inside the steam traps.

B-INVERTED BUCKET TYPE STEAM TRAPS

Operation Principals;

At first, the bucket is at the bottom and discharge nozzle is fully open. As condensate generates and fill inside the body, the bucket stays on the bottom. Steam enters the steam trap from the underneath the bucket, rises and generates at the top as lifting the bucket above. As the bucket rises and pushes the valve towards the seat. Air and CO2 constantly pass through the holes on the bucket and collected around the top of the body, also steam gets collected and condensate here, at this stage buoyancy force decreases and the bucket starts drowning. As the bucket goes down it pull the attached valve from the seat. The collected air is discharged from the condensate first, at this moment orifice is open and condensate is also being discharged. Discharge continues until the steam lifts the bucket and keep cycles.

Advantages of Inverted Bucket Type Steam Traps;

1- Strong structure
2- Resistant to water hammer
3- Resistant to corrosion
4- Resistant against pollution thanks to built-in strainer

Disadvantages of Inverted Bucket Type Steam Traps;

1- Slow discharge
2- Steam leakage possibility at low loads
3- Not suitable for super-heated steam lines