پشتیبانی و خدمات

Bucket descends by its own weight and located in the bottom of a trap, and the valve opens fully. Condensate which flows into a main body fills a bucket and a main body, and excessive condensate is discharged through the valve of full open.

[Caution]
At the time of initial attachment, shut the stop valve on piping, accumulate condensate, and start the trap after making this condensate full in a trap and performing water seal.

Mixture of steam, air and gas flows into the trap and accumulates on upper portion of the bucket.
When this mixture reaches at a certain amount (about 2 / 3 of the bucket), the bucket is lifted with buoyancy, then closing the valve. Without influx of condensate the trap keeps closing.

When condensate flows into the trap again, the steam condenses inside the bucket, increasing the level of liquid in the bucket. This velocity is moderated by inflow of condensate. In addition, air and other gases in the bucket is discharged through an air vent at the upper part of the bucket, and accumulates at the upper part of the trap. While steam is discharged from the air vent, air rises in the condensate as very fine bubbles by difference in specific gravity due to no pressure difference in the body. Since it condenses before reaching the top of the trap, no steam loss is caused.

The influx of condensate keeps rising of liquid level by condense of steam in the bucket. When the liquid level exceeds a certain level (about 1 / 3 of the bucket) the bucket loses buoyancy and sinks, and the valve opens. Gas accumulated inside the trap is discharged, and then condensate is discharged with foreign substance through the valve. This frequency of valve opening increased or decreased by the amount of condensate inflow. When a large amount of gas such as air discharged through air vents of the bucket accumulates at the upper portion of the trap and pushes the water level inside the bucket, the bucket loses buoyancy and sinks, and open the valve to discharge gas.
Above is a complete operating cycle, and the cycle is repeated.

At start-up, since the float is down, the valve is closed. In this state, air in the system and piping is discharged out through the air vent which is opened. When condensate flows into the product, the float flows up and opens the valve, and then discharges condensate. Air is kept to be discharged out from the air vent.

When steam flows into the trap, inner pressure of the air vent rises by steam temperature, and the air vent is closed. According to the amount of condensate inflow, the float position moves up and down, at the same time opening degree of the valve changes, as a result, condensate is continuously discharged. When condensate inflow is out, the float moves down and closes the valve.

When air or non-condensable gas flows into the product, it accumulates in the upper part of the product. When temperature of air or non-condensable gas decreases with condensate inflow, the air vent opens and discharges it to outside of the trap.

At start-up, the bellows contracts and opens the valve to discharge air and condensate. Valve is kept fully open until steam flow in.

When steam flow into the trap, the liquid in the bellows sealed is heated to evaporate. When inside pressure increases, bellows inflates with balance to pressure in the trap and the valve is closed.

When air and condensate accumulate in the trap, and temperature becomes slightly lower than the saturation steam temperature, the valve contracts again to open.

Thermostatic and bimetal type steam trap has two metal plates (called bimetal) of different thermal expansion coefficient are bonded. This trap uses them for the element part for use of nature that it is curved by heat.

There are various shapes or combinations of plates by manufacturers for bimetal, adjustment is necessary for each steam pressure since the saturated steam temperature and temperature difference are required to operate the bimetal.