Fushiman B-10A type bucket trap for air

Manufacturer: Fushiman Co.,LTD.
Model: B-10A

Model	Nominal Diameter	Method	Maximum Operating Pressure	Maximum Operating Temperature	Body Material	Connection
B-10A	15–25	Bucket	1.4 MPa	80°C	FC	Screw-in

Features

Model	Fluid	Nominal Diameter	Main Applications	Max Operating Pressure	Max Temperature	Min Operating Pressure	Valve Box	Valve & Seat	Bucket	Pipe Connection
B-10A	Air Drain	15–25	General air/gas use (*1), air with high oil content	1.4 MPa	80°C	0.01 MPa	Cast Iron	Stainless Steel	Stainless Steel	Threaded JIS Rc

Note (1): Not suitable for gas applications where leakage to the outside is not acceptable.

The bucket floats due to the buoyancy of the air inside it.
A small amount of air escapes through a hole in the top of the bucket and is released via the valve seat outlet, but air is replenished into the bucket from the inlet side, so the bucket stays afloat.
When condensate enters, the amount of air inside the bucket decreases, causing it to lose buoyancy and sink, opening the valve to discharge the condensate.
When air enters the bucket again, it regains buoyancy, floats up, and closes the valve.

Air Pressure (MPa)	0.05	0.1	0.2	0.4	0.6	0.8	1.0	1.4
Discharge Capacity (kg/h)	60	80	120	180	220	240	260	300

Please refer to page 208 of the technical document titled “Examples of Steam Trap Usage.”

When installing, be sure to fill the valve chamber with priming water.
If the test rod is pressed frequently, the water inside the valve chamber may run out, possibly causing air leakage.