The TLV J8X is a free float steam trap with a thermostatic air vent (X-element). It is suitable for a wide range of applications up to 2.1 MPaG (300 psig), such as tracer lines, unit and process heaters, heating coils, heat exchangers, etc. The trap discharges condensate continuously and automatically, at a temperature slightly lower than saturation temperature.

Configuration

No.	Description	No.	Description
1	Body	15	X-element Guide
2	Cover	16	Spring Clip
3	Cover Gasket	17	X-element Cover
4	Float	18	Snap-Ring
5	Orifice	19	Drain Plug*
6	Orifice O-Ring	20	Drain Plug Gasket*
7	Orifice Holder Plug	21	Air Vent Valve Seat
8	Orifice Plug Gasket	22	Connector
9	Screen	23	Cover Bolt
10	Screen Holder	24	Plug
11	Screen Holder Retainer	25	Plug Gasket
12	Float Cover	26	Flange
13	Snap-Ring	27	Pipe
14	X-element	28	Nameplate

*Option

Exploded View

Proper Installation

WARNING

• Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.
• Take measures to prevent people from coming into direct contact with product outlets.
• Install for use under conditions in which no freeze-up will occur.
• Install for use under conditions in which no water hammer will occur.

1. Before installation, be sure to remove all protective seals.
2. Before installing the trap, blow out the inlet piping to remove all dirt and oil.
3. When hoisting the product, hang the rope around the inlet/outlet as close to the body as possible.
4. 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.
5. Install the trap in the lowest part of the pipeline or equipment so the condensate flows naturally into the trap by gravity. The inlet pipe should be as short and have as few bends as possible.
6. Support the pipes properly within 800 mm (2.5 ft) on either side of the trap.
7. Install a bypass valve to discharge condensate, and inlet and outlet valves to isolate the trap in the event of trap failure or when performing maintenance.
8. Install a check valve at the trap outlet whenever more than one trap is connected to the condensate collection pipeline.

Allowable Inclination

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 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 a temperature drop in the equipment, poor product quality or losses due to steam leakage.

DANGER

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.

Parts Inspection Procedure

Part	Inspection
Body, Cover	Check inside for damage, dirt, grease, oil film, rust or scale
Gaskets	Check for warping or damage
X-element	Check for damage
Screen	Check for clogging, corrosion or damage
Float	Check for deformation, damage, oil film or water inside
Air Vent Valve Seat, Orifice	Check for rust, scale, oil film, wear or damage

Tightening Torque and Distance Across Flats for J8X

Part	Torque	Distance Across Flats
Cover Bolt	250 N·m (185 lbf·ft)	32 mm (1 1/4 in)
Air Vent Valve Seat	35 N·m (26 lbf·ft)	19 mm (3/4 in)
Plug	30 N·m (22 lbf·ft)*	12 mm (1 5/32 in)
Orifice Holder Plug	800 N·m (590 lbf·ft)	105 mm (4 1/8 in)
Drain Plug	40 N·m (29 lbf·ft)*	14 mm (9/16 in)

*Indicates torque values with a sealing tape wrapped 3 – 3.5 times around the threads of the plug or drain plug.

Operational Check

A visual inspection can be carried out to aid in determining the necessity for immediate maintenance or repair, if the trap is open to atmosphere. If the trap does not discharge to atmosphere, use diagnostic equipment.

State	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 is clogged with rust or scale	Clean
	Steam-locking has occurred	Blowdown through the bypass or close the trap inlet valve and allow the trap to cool
	X-element is damaged	Replace the X-element
	The trap operating pressure exceeds the maximum specified pressure	Compare specifications and actual operating conditions
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 the 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
	The X-element is damaged, or clogged with rust or scale	Clean or replace the X-element
Steam leaks from a place other than the trap outlet	Deterioration of or damage to gaskets	Replace with new gaskets
	Leakage from eroded cavities of body or cover	Replace the trap
	Improper tightening torque for cover was used	Tighten to the proper torque
Float is frequently damaged	Water hammer occurs	Examine the piping for problems that can cause water hammer