The Yoshitake TSF-8AT is a lever float type air trap designed to effectively discharge condensate from air and other non-dangerous fluid lines. Utilizing the difference in specific gravity between air and condensate, it operates reliably without retention. The main internal parts, including the float and valve, are constructed from stainless steel for excellent corrosion resistance and durability.

Features

1. The TSF-8AT can discharge condensate effectively without retention due to reliable operation by difference in specific gravity between air and condensate.
2. Since the main parts are attached on the cover and it is possible to dismount the cover with the body connected to the piping, inspection and parts replacement can be conducted easily.
3. Excellent corrosion resistance and durability because the main parts are all made of stainless steel.
4. A strainer is incorporated to protect the internal parts from foreign substances and improve durability.

Specifications

Model	TSF-8AT
Nominal size	15A, 20A, 25A
Application	Condensate (Air, Other non-dangerous fluid)
Working pressure	TSF-8AT-5: 0.01-0.5 MPa (0.5 MPa) TSF-8AT-10: 0.01-1.0 MPa (1.0 MPa) TSF-8AT-21: 0.01-2.1 MPa (2.1 MPa)
Max. temperature	220℃
Body	Ductile cast iron
Float	Stainless steel
Valve, valve seat	Stainless steel
Connection	JIS Rc, NPT screwed

• In case from right side to left side, "R" is mentioned at the end of type key.

Flow Direction and Installation

The standard flow direction of TSF-8AT is left to right. However, flow direction from right to left is also available.

• In case from right side to left side, "R" is mentioned at the end of type key.
• Please do not disassemble the product at site.
• Due to the connection of pressure equalization pipe, flow direction top to bottom is not available.

Flow direction	Symbol
Left to Right (Pre-set)	Blank
Right to Left	R

Left to Right: No symbol

Right to Left: Symbol "R"

Installation Posture

Allowable tilt from horizontal line is within ±10°. Wrong posture hampers proper operation.

Dimensions (mm) and Weights (kg)

Nominal size	d	L	A	A1	H	Plug	Weight
15A	Rc or NPT 1/2	121	147	90	145	Rc or NPT 3/8	3.7
20A	Rc or NPT 3/4	121	147	90	145	Rc or NPT 3/8	3.7
25A	Rc or NPT 1	145	147	90	145	Rc or NPT 3/8	4.1

Maximum Continuous Discharge Capacity

The discharge capacity shown on the above chart is the maximum value. In designing a system, select an air trap with a sufficient safety factor (more than two times the regular level).

Piping Example

Piping Recommendations

• If the product is installed close to a regulating valve, make sure to install the product at the inlet side of the regulating valve.
• To install the product in a main pipe, be sure to install the product so that condensate can be discharged from the bottom of the main pipe by drip leg.
• End portion of discharge pipe shall be off the water surface in the pit.
• Install a bypass valve across the product, and install stop valves at the inlet and outlet side of the product.

Maintenance

Exploded Drawing

*Remove the plug on the "TOP" side and install an equalizing line.

Disassembly

Loosen the bolts fixing the cover with a ring wrench (width across flat: 19 mm), and remove the cover and gasket from the body. Pull out the screen from the body.

Reassembly

Connect the float holder and float (P) assembly with the spindle. Check that the float (P) assembly moves smoothly, and that the seat surface of the valve is in contact with that of the valve seat.

The stopper is on the center of the cock.

WRONG: The stopper is on the outer circumference of the cock.

Attach the screen to the body. The screen can be inserted from either end.

Install the cover gasket to the cover. Make the oval-shaped holes on the cover and on the cover gasket in the same position. Make sure to use a new cover gasket. Apply lubricant agent to the cover gasket.

Install the cover to the body. Tighten the bolt with a torque wrench (width across flat: 19 mm) with torque of 45 N・m. Do not use an impact wrench.