- Inverted bucket
The float type (FIGURE 1) consists of a chamber containing a float-and-arm mechanism which modulates the position of a discharge valve. As the level of condensate in the trap rises, the valve is opened to emit the condensate. This type of valve tends to discharge a steady stream of liquid since the valve position is proportional to the rate of incoming condensate. Because the discharge valve is below the waterline, float-type steam FIGURE 2 Float steam trap. (Spirax traps must employ a venting system to Sarco Inc.) discharge non-condensible gases. This is generally accomplished with a thermostatic element which opens a valve when cooler non-condensible gases are present but closes the valve in the presence of hotter steam.
|FIGURE 1: Float steam trap. (Spirax Sarco Inc.)|
|FIGURE 3: Inverted bucket steam trap. (Spirax Sarco Inc.)|
|FIGURE 4: Thermodynamic steam trap (with integral strainer). (Spirax Sarco Inc.)|