Yoshitake TS-5BP is a thermostatic steam trap with a compact, lightweight design that can be installed either horizontally or vertically. It is equipped with a blow valve to efficiently discharge condensate and air at start-up, significantly shortening the initial start-up time. Designed for tracing lines, food equipment, medical equipment, and laundry equipment, it features a stainless steel body and wetted parts for improved corrosion resistance and operates without steam leakage.

Features

• Compact, lightweight design and it 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 by stainless steel body and wetted parts.
• 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-5BP
Nominal size	15A, 20A
Application	Steam, Steam condensate
Maximum working pressure	1.0 MPa
Maximum allowable back pressure	0.4 MPa
Operation temperature	TS-5□-15: 15°C below saturated steam temperature (Standard)
Maximum temperature	185°C
Connection	JIS Rc, NPT
Flow direction	Horizontal or vertical
Material (Body)	Stainless steel
Material (Valve seat)	Stainless steel

Operation Temperature Options

• The standard product has the operation temperature that is 15°C below saturated steam temperature.
• Use the product with operating temperature of 5°C below (model: TS-5□-5) or 25°C below (model: TS-5□-25) according to application.
• TS-5□-5 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 this case, TS-5□-25 is recommended to minimize flash steam.

WARNING

Please confirm that the indications on the product correspond with the specifications of the ordered product model before use. If they are different, please contact us without using the product.

Operation Mechanism

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 of the capsule increases due to the heat of 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 of 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

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.

Discharge Capacity

1. Make sure to consider the back pressure (outlet pressure) in selecting discharge capacity. This is because the discharge capacity of a trap varies on the difference between the inlet and the outlet pressures (the working differential pressure). For example, the discharge capacity obtained with the inlet pressure of 0.5 MPa and the outlet pressure of 0.2 MPa is that with the working differential pressure of 0.3 MPa.
2. 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, the 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.

Installation

Precaution for Installation

Warning

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 when condensate blows out.

Caution

• Before installation, remove foreign substances and scale from the piping.
• Before connecting the product to piping, check the inlet and outlet of the product so that the fluid flows in the correct direction.

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. And the handle should be in the position where it can be operated smoothly.

• Make sure to support the piping immovably. Excessive piping stress applied to the product may cause malfunction.
• Secure enough space for maintenance (such as cleaning of strainer), inspections and repair.
• When using the product as a trap, slope the piping and place the product at as low a position as possible in order to make condensate flow into the product by its own weight.
• To install the product in a main steam pipe, provide a drip leg at the inlet side of the product.
• 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 the pressure of 0.4 MPa or less during the testing.

Maintenance

Precaution for Maintenance

Warning

• Disassembly and inspections must be performed by a professional or a valve manufacturer.
• If the fluid is hot, do not touch the product with bare hands.
• Completely discharge internal pressure of the product, piping and equipment, and cool down the product, prior to disassembly or maintenance. Failure to follow this notice may result in scalds or injury due to residual pressure.

Daily and Periodic Inspections

Conduct daily inspection during operation of the product to check the condensate discharge condition and ensure there is no outside leakage of condensate or steam.

Conduct disassembly inspection periodically (once a year):

• 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.

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
	Steam locking occurs	Change the piping system layout
Continuous blowout	Foreign substance is stuck between capsule and valve seat. Scale is accumulated	Close the stop valve at the inlet side of the product and stop steam flowing in. Open the stop valve and blow the product. If leakage remains, disassemble and clean.
	Capsule and/or valve seat is damaged, abraded or deformed	Replace the parts
	Valve seat is loose	Retighten it with proper torque
Blow valve leakage (TS-5BP)		Close the blow valve by turning the handle clockwise. If leakage remains, replace the trap.
Handle is stiff (TS-5BP)	Handle is opened too much or closed too much	Use an appropriate tool.

WARNING

Before retightening bonnet, gland nut, and nut of TS-5BP, open the blow valve by turning the handle counterclockwise. Retightening these parts with the blow valve closed may damage the internal parts resulting in malfunction.

Exploded Drawing & Disassembly

[Procedure 1] Loosen the bolts with a socket wrench or a spanner (width across flats: 10 mm), and remove the bolts and the cover. Be careful not to drop the capsule. [Procedure 2] Remove the valve seat and screen with a socket wrench (width across flats: 17 mm).