The TLV J10 series is an inline maintainable, float dynamic steam trap capable of discharging condensate at high flow rates. It is specifically designed as a cast iron float-piston trap for high-capacity process applications, making it highly suitable for large process heat exchangers.

This product features a self-modulating free float pilot mechanism that ensures discharge at near-to-steam temperatures, combined with a proven piston valve that allows "pulsing" discharge of condensate at high flow rates and intermittent discharge at low flow rates.

Features

1. Self-modulating free float pilot mechanism ensures discharge at near-to-steam temperatures.
2. Proven piston valve allows "pulsing" discharge of condensate at high flow rates and intermittent discharge at low flow rates.
3. Steam chamber design prevents damage to the valve and valve seat on closure.
4. All internal parts are easily accessible without having to remove the trap from the line.
5. Applicable over a wide pressure range without adjustment.
6. Manual lock release valve helps eliminate steam locking and air binding.

Specifications

Model	J10-30	J10-60
Connection	Flanged	Flanged
Size (mm)	100	100
Maximum Operating Pressure (barg) PMO	13	13
Maximum Differential Pressure (bar) ΔPMX	13	13
Minimum Differential Pressure (bar)	0.5	0.5
Maximum Operating Temperature (°C) TMO	220	220

Pressure Shell Design Conditions

Maximum Allowable Pressure (barg) PMA: 13 (1 MPa = 10.197 kg/cm²) Maximum Allowable Temperature (°C) TMA: 220 These are NOT operating conditions. Install properly and DO NOT use this product outside the recommended operating pressure, temperature and other specification ranges.

Materials and Configuration

No.	Description	Material	DIN*	ASTM/AISI*
1	Body	Cast Iron FC250	GG-25	A126 CI.B
2	Cover	Cast Iron FC250	GG-25	A126 CI.B
3	Float	Stainless Steel SUS316L	1.4404	AISI316L
4	Sleeve	Stainless Steel SUS420F	1.4028	AISI420F
5	Float Cover	Stainless Steel SUS304	1.4301	AISI304
15	Main Valve	-	-	-
16	Main Valve Seat	-	-	-
17	Cylinder	Stainless Steel SUS304	1.4301	AISI304
18	Piston Ring Set	Stainl. Stl./Fluorine Resin SUS304/PTFE	1.4301/PTFE	AISI304/PTFE
19	Piston	Stainless Steel SUS304	1.4301	AISI304
23	Lock Release Valve	Stainless Steel SUS420F	1.4028	AISI420F

(Note: Partial list of key components. Refer to the full manual for all 24 parts.)

Float 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.

Dimensions

J10 Flanged (mm)

Size	L (DIN PN16)	L (ASME 125FF)	L (ASME 150RF)	L (ASME 250RF)	L (ASME 300RF)	H	H1	Weight* (kg)
100	595	595	595	611	611	510	395	121

No ASME standard exists for cast iron; machined to fit steel flanges. Class 125 FF can connect to 150 RF, 250 RF can connect to 300 RF. Weight is for Class 250 RF.

Discharge Capacity

1. Capacities are based on continuous discharge of condensate 6°C below saturated steam temperature.
2. Differential pressure is the difference between the inlet and outlet pressure of the trap.
3. Select the closest model with a capacity greater than the actual condensate load multiplied by a safety factor of 1.2.

WARNING

DO NOT use traps under conditions that exceed maximum differential pressure, as condensate backup will occur!

Operation Principles

1. Valve opening & initial condensate discharge

At start-up, when a large quantity of condensate flows into the trap, the float (A) rises by buoyancy, opening the pilot orifice (E). Condensate flows through the pilot orifice (E) into the control chamber (F), increasing the pressure there. The increased pressure causes the piston (D), and accordingly the main valve (B), to move up. The orifice on the main valve seat (C) is then opened to discharge condensate.

2. Valve closing & water seal

When condensate has been discharged, the float (A) falls, closing the pilot orifice (E). Pressure in the control chamber (F) decreases due to leakage through small holes. The main valve (B) moves downward, closing the orifice of the main valve seat (C). The orifices are completely water-sealed during operation, permitting no steam leakage.

3. Regular operation

After the large quantity of initial condensate formed at start-up has been discharged, the equipment reaches a thermally balanced state, forming condensate in accordance with the load. The trap then discharges condensate by a modulating float dynamic principle.

Float dynamic principle

When a large quantity of condensate flows into the trap, the float (A) rises immediately, opening the pilot orifice (E) wide. Condensate passes through the pilot orifice at a high velocity into the control chamber (F), where the pressure increases rapidly due to flashing condensate. The rapid expansion causes a force to be exerted on the main valve (B), opening the large orifice on the main valve seat (C) instantly. As condensate discharges through the main valve seat orifice at a high velocity, condensate in the equipment and trap inlet pipe is also discharged.

Lock Release Valve Operation

If air binding or steam-locking occurs, or to more rapidly vent large quantities of initial air in the piping, use the lock release valve.

1. Remove the lock release valve cap with a 27 mm wrench.
2. Using a 10 mm wrench, turn the lock release valve stem counter-clockwise.
3. With an appropriate number of turns air binding or steam-locking will cease and the trap will function normally. If necessary, increase the degree of valve opening further.
4. After having checked that the trap continues working normally, close the lock release valve by turning the stem clockwise, and reinstall the cap (tighten to a torque of 15 N·m).

WARNING

Do not leave the lock release valve open during regular operation. Always be sure to close the lock release valve after eliminating air binding or steam-locking.

Troubleshooting

If the product fails to operate properly, use the following table to locate the cause and remedy.

Problem	Cause	Remedy
No condensate is discharged (blocked) or discharge is poor	The float is damaged or filled with condensate	Replace with a new float
	There is no inflow of condensate	Inspect and correct the piping
	The orifice opening or piping are clogged with rust and scale	Clean parts
	The product operating pressure exceeds the maximum specified pressure or there is insufficient pressure differential	Compare specifications and actual operating conditions
	Air binding or steam-locking has occurred	Operate the lock release valve, perform a bypass blowdown or close the product inlet valve and allow the product to cool
	The piston or cylinder is damaged or the exhaust holes in the main valve stem have become enlarged	Replace with a new piston, cylinder or main valve
Steam is discharged or leaks from the product outlet	The piston or cylinder has a build-up of sticky scale	Clean parts
	Build-up on the seating surface of the main valve or rust and scale build-up beneath the float	Clean parts
	The float is misshapen or has a build-up	Clean or replace with new float
	The exhaust holes in the main valve have become clogged	Clean or replace piston
	The main valve or main valve seat is worn	Replace with new parts as required
Steam is leaking from a place other than the outlet	Improper installation orientation	Correct the installation
	Product vibration	Lengthen inlet piping and fasten securely
	Gasket deterioration or damage	Replace with new gasket(s)
	Improper tightening torques were used	Tighten to the proper torque
Float is frequently damaged	Water hammer has occurred	Study and correct the piping