Figure 11 3 3 shows the method of operation.
Bucket type steam trap animation.
When steam or air enters the bucket the bucket gains buoyancy and closes the valve.
To review a specific inverted bucket steam trap select a series and go to the menu.
These are mechanical type of steam traps working on the principle of buoyancy.
An essential part of the trap is the small air vent hole in the top of the bucket.
In inverted bucket steam traps the bucket within the trap is attached to a lever that opens and closes the trap valve in response to the bucket s motion.
Up to 20 000 lb hr 9 072 kg hr.
Discharge condensate immediately and completely.
In contrast inverted bucket type traps typically include an internal weep hole to bleed off steam or air continuously and with each cycle.
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Liquid expansion steam traps the liquid expansion steam trap employs a liquid expansion device to discharge condensate at a predefined temperature.
Inverted bucket traps are the most robust type of the mechanical traps.
A steam trap is a self contained valve which automatically drains the condensate from a steam containing enclosure while remaining tight to live steam or if necessary allowing steam to flow at a controlled or adjusted rate.
Condensate causes the bucket to lose buoyancy and sink opening the valve and allowing the removal of the condensate.
Most steam traps pass non condensable gases like air while remaining tight to live steam.
Initially the bucket is resting at the bottom of the steam trap and the valve seat is wide open.
A steam trap should.
As its name implies the mechanism consists of an inverted bucket which is attached by a lever to a valve.
Up to 4 400 lb hr 2 000 kg hr.
200 series inverted bucket steam traps.
The weep hole is usually small enough to prevent significant steam loss but it removes only a limited amount of air which can hinder system start up or heat transfer on equipment.
Inverted bucket steam trap.
At star up air will enter the steam trap and will be discharged out through the bleed hole.
The bucket trap uses an inverted bucket as a float device and a linkage connects the bucket to the valve head.