TLV SJH6NB inline repairable free float steam trap with thermostatic air vent (X-element) is suitable for a wide range of applications with small-to-large capacities and pressures up to 32 barg, such as heat exchangers, tank heaters, dryers, and process equipment. The trap discharges 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 damage to property and equipment.

• Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.
• Install properly and DO NOT use this product outside the recommended operating pressure, temperature and other specification ranges. Improper use may result in such hazards as damage to the product or malfunctions.
• DO NOT use this product in excess of the maximum operating pressure differential. Such use could make discharge impossible (blocked).
• Do not subject this product to condensate loads that exceed its discharge capacity.

Configuration

No.	Name
1	Body
2	Cover
3	Float
4	Orifice
5	Orifice Gasket
6	Orifice Plug Gasket
7	Orifice Plug
8	Cover Gasket
9	Cover Bolt
10	Cover Nut
11	Screen Holder Gasket
12	Screen Holder
13	Main Screen
14	Element Cover Gasket
15	Element Cover
16	Element Guide
17	Air Vent Valve Seat
18	Bimetal Plate
19	Snap Ring
20	Air Vent Valve
21	Spring Clip
22	Air Vent Screen
23	Nameplate

Proper Installation

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. Install the trap in the lowest part of the pipeline or equipment so the condensate flows naturally downward into the trap by gravity. The inlet pipe should be as short and have as few bends as possible.
4. Install the 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. When completing the piping, support the pipes properly within 800 mm (2.5 ft) on either side of the trap.
6. 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.
7. Install a check valve at the trap outlet whenever the condensate discharge pipe leads to a tank or recovery line, or whenever the condensate collection pipeline is connected with more than one trap.

Maximum Allowable Inclination

Piping Arrangement

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

Requirement	Correct	Incorrect
Install a catchpot of the proper diameter.	Ensure proper sizing	Diameter is too small.
Make sure the flow of condensate is not obstructed.	Flush with pipe bottom	Diameter is too small and inlet protrudes into pipe.
To prevent rust and scale from flowing into the trap, connect the inlet pipe 25 - 50 mm (1 - 2 in) above the base of the T - pipe.	Elevated connection	Rust and scale flow into the trap with the condensate.
When installing on the blind end, make sure nothing obstructs the flow of condensate.	Unobstructed flow	Condensate collects in the pipe.

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.

Condition	Description
Normal	Condensate is discharged continuously with flash steam and the sound of flow can be heard. If there is very little condensate, there is almost no sound of flow.
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.

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

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

Troubleshooting

If the expected performance is unachievable after installation of the steam trap, check the following points for appropriate corrective measures.

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
	X-element is damaged	Replace the X-element
	The trap operating pressure exceeds the maximum specified pressure	Compare specifications and actual operating conditions
	Steam-locking has occurred	Blow down through the bypass or allow the trap to cool
Steam is discharged or leaks from the trap outlet (blowing)	Orifice is clogged, or rust and scale have accumulated 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

Instructions for Plug / Holder Disassembly and Reassembly

The seal on the threaded plugs/holders found on TLV products is formed by a flat metal gasket. The gasket may be pinched in the thread recesses during assembly if not handled correctly.

1. Remove the plug/holder using a tool of the specified size.
2. The gasket should not be reused. Be sure to replace it with a new gasket.
3. Clean the gasket surfaces of the plug/holder and the product body using a rag and/or cleaning agents.
4. Coat both the gasket surface of the plug/holder and the threads of the plug/holder with anti-seize.
5. Hold the plug/holder upside down to make sure that the anti-seize makes the gasket stick to the plug/holder.
6. Screw the plug/holder by hand into the product body while making sure that the gasket remains tightly affixed to the center of the gasket surface.
7. Tighten the plug/holder to the proper torque.
8. Begin the supply of steam and check to make sure there is no leakage from the part just tightened.