Yoshitake TSF-11F is a float steam trap designed for steam condensate applications. The TSF-11F can discharge condensate effectively without retention, realizing an energy-saving steam system without steam loss. It features a ductile cast iron body and a stainless steel float and valve.

An incorporated thermostatic air vent discharges air inside the piping and shortens warming-up time. By turning the cock, it is possible to meet various flow directions such as horizontal or vertical installation. Flow direction can be switched easily without disassembly such as detaching the cover. Since the main parts are installed on the cover, it is possible to disassemble the cover with the body installed on the piping, making inspection and parts replacement easy.

Specifications

Model	TSF-11F
Nominal size	25A-50A
Application	Steam condensate
Working pressure	TSF-11F-5: 0.01-0.5 MPa TSF-11F-10: 0.01-1.0 MPa TSF-11F-21: 0.01-2.1 MPa
Maximum temperature	220℃
Body Material	Ductile cast iron
Float Material	Stainless steel
Valve, valve seat Material	Stainless steel
Connection	JIS 10K FF flanged, JIS 20K FF flanged
Flow direction	All directions

Dimensions and Weights

Nominal size	d	L	A	A1	H	Weight (kg)
25A	25	270	244	147	186	13.4
32A	32	270	244	147	186	14.1
40A	40	280	244	147	186	14.4
50A	50	290	244	147	186	15.5

Maximum Continuous Discharge Capacity

The discharge capacity shown in the chart below is the maximum value. In designing a system, select a steam trap with a sufficient safety factor (two times the regular level).

Operation

1. Start-up of the operation

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 lifts up and opens the valve, and then discharges condensate. Air is continuously discharged out from the air vent.

2. Condensate discharging operation

When steam flows into the product, internal pressure of the air vent rises by steam temperature, and the air vent closes. According to the amount of condensate inflow, the float position moves up and down changing the opening degree of the valve, and thus condensate is continuously discharged. The float moves down and the valve closes when condensate inflow stops.

3. Air vent operation

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 the outside of the product. Then, operations 2 and 3 repeat according to the inflow amount of condensate and air.

Installation Precautions

Installation

• Adjust direction of the nameplate in no pressure condition after installation.
• Fix the cock with a spanner and loosen the nut. Turn the cock and adjust the direction of the nameplate to position "TOP" and "BOTTOM" signs on upside and downside respectively.
• Fix the cock with a spanner and fasten the nut after adjustment. Allowable tilt from the vertical/horizontal line is within ±10°.

Exploded Drawing

• The air vent (P) cannot be removed from the cock.
• Do not remove the plug from the cover except when disposing.