The Yoshitake TS-5V, TS-5S, and TS-5BP are thermostatic capsule-type steam traps designed for efficient condensate removal in steam lines. Featuring a compact and lightweight stainless steel construction, these traps operate at a temperature lower than the saturated steam temperature, ensuring zero steam leakage. They require no adjustment and are highly suitable for tracing lines, food equipment, medical equipment, and laundry equipment. The TS-5BP model is additionally equipped with a manual blow valve to significantly shorten initial start-up times.

Features

• Compact, lightweight design that can be installed either horizontally or vertically.
• No steam leakage because it operates at a temperature lower than the saturated steam temperature.
• No adjustment is required as the operation is according to the saturated steam temperature.
• Improved corrosion resistance provided by a stainless steel body and wetted parts.
• The TS-5BP is equipped with a blow valve to shorten the initial start-up time.
• Suitable for tracing lines, food equipment, medical equipment, and laundry equipment.

Specifications

Model	TS-5V	TS-5S	TS-5BP
Nominal size	8A, 10A, 15A, 20A, 25A	8A, 10A, 15A, 20A, 25A	15A, 20A
Application	Steam, Steam condensate	Steam, Steam condensate	Steam, Steam condensate
Max. working pressure	2.1 MPa	2.1 MPa	1.0 MPa
Max. allowable back pressure	0.4 MPa	0.4 MPa	0.4 MPa
Operation temperature	TS-5□-15: 15°C below saturated steam temperature (Standard)	TS-5□-15: 15°C below saturated steam temperature (Standard)	TS-5□-15: 15°C below saturated steam temperature (Standard)
Max. temperature	220°C	220°C	185°C
Material (Body/Valve seat)	Stainless steel	Stainless steel	Stainless steel
Connection	JIS Rc, NPT	JIS Rc, NPT	JIS Rc, NPT
Flow direction	Horizontal or vertical	Horizontal or vertical	Horizontal or vertical

Temperature Options

• The standard product operates at 15°C below saturated steam temperature.
• Available with operation temperatures 5°C below (Model: TS-5-5) and 25°C below (Model: TS-5-25) saturated steam temperature.
• TS-5-5 (5°C below) is recommended if the inclusion of condensate in steam should be avoided, for example, when the product is used for equipment utilizing direct steam.
• The product can be used as an air vent valve to exhaust air at start-up in a steam line. When using it as an air vent for steam, TS-5-25 (25°C below) is recommended to minimize flash steam.

Dimensions and Materials

Size	d	L (mm)	D (mm)	Weight (kg)
8A	Rc 1/4	55	47	0.55
10A	Rc 3/8	55	47	0.55
15A	Rc 1/2	55	47	0.54
20A	Rc 3/4	60	47	0.54
25A	Rc 1	60	47	0.51

Parts List

No.	Name of Parts	Material
1	Body	Stainless Steel (SUS)
2	Cover	Stainless Steel (SUS)
3	Valve Seat	Stainless Steel (SUS420J2)
4	Capsule	Stainless Steel (SUS)
5	Spring	Stainless Steel (SUS)
6	Screen	Stainless Steel (SUS)
7	C-Ring	Stainless Steel (SUS)
8	Cover Gasket	Stainless Steel (SUS)
9	Valve Seat Gasket	Stainless Steel (SUS)
10	Name Plate	Aluminium (A1050)

Discharge Capacity

Make sure to consider the back pressure (outlet pressure) in selecting discharge capacity. The discharge capacity of a trap varies based on the difference between the inlet and the outlet pressures (the working differential pressure). To select a nominal size, secure a safety factor of 2 or more. If you need a steam trap with a capacity of 50 kg/h, a product with a maximum capacity of 100 kg/h or more should be selected.

WARNING

Use the product with an outlet pressure of 0.4 MPa or less. The capsule may be damaged when high pressure is applied at room temperature, resulting in malfunction.

Operation

1. Starting-up

At start-up, there is a gap between the valve disc and the valve seat, and the trap is open. In this state, condensate and air are discharged.

2. Closing

When steam flows into the trap, the pressure inside the capsule increases due to the heat of the steam and pushes down the diaphragm. This closes the gap between the valve disc and the valve seat, and thus the trap closes.

3. Opening

When the steam temperature drops and condenses, the pressure inside the capsule decreases, and thus the diaphragm is pushed up and the trap opens to discharge condensate. The trap repeats closing and opening according to the inflow of steam and condensate.

4. TS-5BP Blow Function

The TS-5BP efficiently discharges condensate and air at start-up when its handle is turned counterclockwise to open the blow valve. Close the blow valve after condensate is discharged by turning the handle fully clockwise.

Installation and Piping

Piping Example as Trap

Piping Guidelines:

• Provide a by-pass line around the product, and install stop valves at the outlet side of the product.
• When installing the product around a regulating valve, be sure to install it at the inlet side of the regulating valve.
• To discharge condensate from the steam main, be sure to install the product so that condensate can be discharged from the bottom of the steam main by a drip leg.
• Install the product at the lowest bottom of the condensate-generating equipment.
• To discharge condensate from more than one piece of equipment, install a separate product for each.
• The diameter of a collecting pipe should be more than the summation of the sectional areas of the discharge pipes. Install check valves for backflow prevention.
• For condensate recovery, connect the discharge pipe to the upper part of the collecting pipe.
• The discharge pipe end should be off the water surface in the pit to prevent dirty water from being drawn in when the system is not operating.

Precautions for Installation

DANGER

To discharge condensate to the atmosphere, lead the outlet to a safe place where there is no possibility of physical damage even when condensate blows out. Failure to follow this notice may result in scalds or injury.

WARNING

• Before installation, remove foreign substances and scale from the piping.
• Check the inlet and outlet of the product so that the fluid flow direction and the arrow marked on the product are in the same direction.
• Do not apply excessive load, torque, or vibration to the product.
• TS-5S and TS-5BP can be installed either horizontally or vertically, as long as the cover is kept upward at an angle between 0 to 90 degrees.
• Make sure to support the piping immovably.
• Secure enough space for maintenance (such as cleaning of the strainer), inspections, and repair.
• Install a stop valve and a strainer at the inlet side of the product (80 mesh or more is recommended).
• Install the product so that it is not subjected to the shock of water hammer. Do not install a quick opening valve before and/or after the product.
• In case of conducting an airtightness test or a pressure test, apply a pressure of 0.4 MPa or less during the testing.

Maintenance and Troubleshooting

Daily and Periodic Inspections

Daily Inspection (once a day):

To be inspected	Inspection criteria
Condensate discharge condition	Condensate is discharged smoothly.
Outside leakage	No outside leakage of condensate or steam.

Periodic Inspection (once a year for TS-5S and TS-5BP):

To be inspected	Inspection criteria
Sealing surfaces of capsule and valve seat	No damage or abrasion, and no foreign substance stuck.
Shape of capsule	No deformation or damage on capsule.
Dirt on screen	No clogging on screen.

(Note: TS-5V cannot be disassembled.)

Troubleshooting

Trouble	Cause	Remedy
Condensate or air is not discharged	Screen is clogged.	Disassemble or disconnect from pipe and clean it.
	Capsule is deformed or damaged.	Replace the part.
	Capsule is damaged due to abnormal pressure rise (freezing, water hammer).	Replace the part. Use within working pressure range.
	Steam locking occurs.	Change the piping system layout.
Continuous blowout	Foreign substance stuck between capsule and valve seat. Scale accumulated.	Close stop valve, allow to cool, then blow the product. If leakage remains, disassemble and clean.
	Capsule and/or valve seat is damaged, abraded, or deformed.	Replace the parts.
	Discharge capacity is insufficient.	Replace with a model of enough capacity.
	Blow valve leaks (TS-5BP).	Close blow valve by turning handle clockwise. If leakage does not stop, replace product.
Steam leakage	Body and cover are loose (TS-5V).	Retighten body and cover. If leakage continues, replace product.
	Bolts are loose (TS-5S, TS-5BP).	Replace cover gasket. Retighten bolts with proper torque.
	Leakage due to abnormal pressure rise.	Replace product. Use within working pressure range.

Exploded Drawing

(Refer to the manual for detailed disassembly and reassembly torque specifications for TS-5S and TS-5BP models.)