The TLV JH7RL-B is an inline repairable free float steam trap equipped with a thermostatic bimetal air vent. It is designed for applications requiring small-to-large capacities and can handle pressures up to 10 MPaG (1500 psig). Typical applications include various types of heat exchangers, process heaters, and coils. The trap discharges condensate continuously and automatically at a temperature slightly lower than the saturation temperature.

Configuration

The steam trap consists of several key components including the body, free float mechanism, orifice, thermostatic air venting components, and screens to protect internal mechanisms.

WARNING

NEVER apply direct heat to the float. The float may explode due to increased internal pressure, causing accidents leading to serious injury or damage to property and equipment.

Proper Installation

• Install for use under conditions in which no freeze-up will occur.
• Install for use under conditions in which no water hammer will occur.
• Before installation, be sure to remove all protective seals and blow out the inlet piping to remove dirt and oil.
• Install the steam trap within the allowable inclination and make sure the arrow mark on the body corresponds with the direction of flow.
• Install the trap in the lowest part of the pipeline or equipment so the condensate flows naturally into the trap by gravity.
• Support the pipes properly within 800 mm (2.5 ft) on either side of the trap.
• Install a bypass valve, as well as inlet and outlet isolation valves.

Inspection and Maintenance

Operational inspections should be performed at least twice per year, or as called for by trap operating conditions.

Parts Inspection Procedure

Part	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

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
	Trap operating pressure exceeds max specified, or insufficient pressure diff	Compare specifications and actual operating conditions
	Steam locking has occurred	Blowdown through bypass or close inlet valve and cool
Steam is discharged or leaks from the trap outlet (blowing / steam leakage)	Rust and scale have accumulated around valve seat or under 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
	Vibration of trap occurs	Lengthen inlet piping, then fasten it securely
	Bimetal air vent valve surface/seat has build-up or is scratched	Clean or replace with new bimetal and/or seat
	The bimetal is damaged	Replace with new bimetal