The TLV JH3S-B is an inline repairable free float steam trap with a thermostatic bimetal air vent. It is designed for small-to-large capacities and pressures up to 6.5 MPaG (925 psig). The trap is suitable for all kinds of heat exchangers, process heaters, and coils, discharging condensate continuously and automatically at a temperature slightly lower than saturation temperature.

Safety Considerations

WARNING

• NEVER apply direct heat to the float. The float may explode due to increased internal pressure, causing accidents leading to serious injury or property and equipment damage.
• Install properly and DO NOT use this product outside the recommended operating pressure, temperature and other specification ranges.
• DO NOT use this product in excess of the maximum operating pressure differential. Such use could make discharge impossible.
• Take measures to prevent people from coming into direct contact with product outlets.

Configuration

No	Description	Replacement Parts
1	Body
2	Cover
3	Float	Float (F)
4	Orifice	Repair Parts (R)
5	Orifice Gasket	Maintenance Parts (M), Repair Parts (R)
6	Orifice Plug
7	Orifice Plug Gasket	Maintenance Parts (M), Repair Parts (R)
8	Cover Gasket	Maintenance Parts (M), Repair Parts (R)
9	Float Cover	Repair Parts (R)
10	Screen	Repair Parts (R)
11	Snap Ring	Repair Parts (R)

Exploded View

Proper Installation

• Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.
• Install for use under conditions in which no freeze-up will occur.
• Install for use under conditions in which no water hammer will occur.
• Install the steam trap within the allowable inclination, as shown below. Also make sure that the arrow mark on the body corresponds with the direction of flow.

Piping Arrangement

Check to make sure that the pipes connected to the trap have been installed properly.

1. Is the pipe diameter suitable?
2. Has the trap been installed within the allowable inclination and with the arrow on the body pointing in the direction of flow?
3. Has sufficient space been secured for maintenance?
4. Have maintenance valves been installed at the inlet and outlet? If the outlet is subject to back pressure, has a check valve been installed?
5. Is the inlet pipe as short as possible, with as few bends as possible, and installed so that the condensate will flow naturally down into the trap?

Inspection and Maintenance

Operational inspections should be performed at least twice per year, or as called for by trap operating conditions. Steam trap failure may result in temperature drop in the equipment, poor product quality or losses due to steam leakage.

Parts Inspection Procedure
Body, Cover(s)	Check inside for damage, dirt, grease, oil film, rust or scale
Gaskets	Check for warping or damage
Bimetal Plate	Check for damage
Air Vent Valve (and Seat)	Check for damage
Screen(s)	Check for clogging, corrosion or damage
Float	Check for deformation, damage, oil film or water inside
Orifice Opening	Check for rust, scale, oil film, wear or damage

Tightening Torque (JH3S-B):

• Orifice: 30 N·m (22 lbf·ft)
• Orifice Plug: 80 N·m (59 lbf·ft)
• Air Vent Valve Seat: 30 N·m (22 lbf·ft)
• Cover Bolt/Nut: 50 N·m (37 lbf·ft)
• Drain Plug: 35 N·m (26 lbf·ft)

Operational Check

Status	Description
Normal	Condensate is discharged continuously with flash steam and the sound of flow can be heard.
Blocked	No condensate is discharged. The trap is quiet and makes no noise, and the surface temperature of the trap is low.
Blowing	Live steam continually flows from the outlet and there is a continuous metallic sound.
Steam Leakage	Live steam is discharged through the trap outlet together with the condensate and there is a high-pitched sound.

Troubleshooting

Problem	Cause	Remedy
No condensate is discharged (blocked) or discharge is poor	Float is damaged or filled with condensate	Replace the float
	Orifice, screen or piping are clogged with rust or scale	Clean
	The bimetal is damaged	Replace with new bimetal
	Steam locking has occurred	Blowdown through the bypass or close the trap inlet valve and allow the trap to cool
Steam is discharged or leaks from the trap outlet (blowing / steam leakage)	Rust and scale have accumulated around the orifice or under the float	Clean
	Orifice is damaged	Replace with new orifice
	Float is deformed or coated with scale	Clean or replace the float
	Trap is installed above the maximum allowable inclination angle	Correct the installation