TLV JH7.2R-X and JH7.2R-B are reliable and durable cast steel free float steam traps designed for use on medium-size process equipment. The JH7.2R-B model is also suitable for high-pressure process applications. These inline repairable steam traps discharge condensate continuously and automatically at a temperature slightly lower than the saturation temperature.

Features

• Self-modulating free float provides continuous, smooth, low-velocity condensate discharge as process loads vary.
• Constant water seal design ensures a steam-tight seal, even under low-load conditions.
• JH7.2R-X: Thermostatic capsule (X-element) with “fail open” feature vents air automatically at close-to-steam temperature.
• JH7.2R-B: Thermostatic bimetal air vent valve vents air automatically for rapid startup.
• Built-in screen with large surface area ensures extended trouble-free operation.
• Easy, inline access to internal parts simplifies cleaning and reduces maintenance costs.

Specifications

WARNING

Maximum allowable pressure (PMA) is 46 barg and maximum allowable temperature (TMA) is 400 °C / 425 °C. These are PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS. To avoid abnormal operation, accidents or serious injury, DO NOT use this product outside of the specification range.

Model	JH7.2R-X	JH7.2R-B
Connection	Socket Welded, Flanged	Socket Welded, Flanged
Size	DN 40, 50	DN 40, 50
Orifice No.	2, 5, 10, 14, 22, 32	2, 5, 10, 14, 22, 32, 40, 46
Maximum Operating Pressure (PMO)	2, 5, 10, 14, 22, 32 barg	2, 5, 10, 14, 22, 32, 40, 46 barg
Maximum Differential Pressure (ΔPMX)	2, 5, 10, 14, 22, 32 bar	2, 5, 10, 14, 22, 32, 40, 46 bar
Maximum Operating Temperature (TMO)	240 °C	400 °C / 425 °C*
Type of Air Vent	X-element (6 °C subcooling)	Bimetal (vents air up to approx. 100 °C)

* With PN flange

Materials

No.	Description	Material	DIN	ASTM/AISI
1	Body	Cast Steel A216 Gr.WCB	1.0619	—
2	Cover	Carbon Steel A105	1.0460	—
3	Float	Stainless Steel SUS316L	1.4404	AISI316L
5	Orifice Gasket	Soft Iron SUYP	1.1121	AISI1010
6	Orifice Plug	Cast Stainless Steel A351 Gr.CF8	1.4312	—
8	Screen inside/outside	Stainless Steel SUS430/304	1.4016/1.4301	AISI430/304

Dimensions

Socket Welded

DN	L (mm)	H (mm)	H1 (mm)	W (mm)	h (mm)	Weight (kg)
40	401	320	244	250	13	35
50	401	320	244	250	16	38

Flanged

DN	L (DIN PN25/40)	L (ASME 150RF)	L (ASME 300RF)	L (ASME 600RF)	H	H1	W	Weight (kg)
40	407	406	413	429	320	244	250	35
50	411	410	416	435	320	244	250	40

Discharge Capacity

JH7.2R-X

JH7.2R-B

INFO

1. Line numbers within the graph are orifice numbers.
2. Differential pressure is the difference between the inlet and outlet pressure of the trap.
3. Capacities are based on continuous discharge of condensate 6 °C below saturated steam temperature.
4. Recommended safety factor: at least 1.5.

Safety Considerations

DANGER

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

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 and 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 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.
9. The use of unions is recommended to facilitate connection and disconnection of screwed models.

Piping Arrangement

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

• Is the pipe diameter suitable? (Install a catchpot with the proper diameter. Make sure the flow of condensate is not obstructed.)
• Has the trap been installed within the allowable inclination and with the arrow on the body pointing in the direction of flow?
• Has sufficient space been secured for maintenance?
• Have maintenance valves been installed at the inlet and outlet? If the outlet is subject to back pressure, has a check valve been installed?
• To prevent rust and scale from flowing into the trap, connect the inlet pipe 25 - 50 mm above the base of the T - pipe.
• When installing on the blind end, make sure nothing obstructs the flow of condensate.

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
X-element	Check for damage
Screen(s)	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

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 are clogged with rust or scale	Clean
	X-element is damaged	Replace the X-element
	The trap operating pressure exceeds the maximum specified pressure, or there is insufficient pressure differential	Compare specifications and actual operating conditions
	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
	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 the 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