TLV JH7.5R-X and JH7.5R-B are reliable and durable cast steel free float steam traps designed for use on large-size process equipment. The JH7.5R-B model is also suitable for high-pressure process equipment, handling pressures up to 46 barg and temperatures up to 425 °C. These traps discharge condensate continuously and automatically at a temperature slightly lower than the saturation temperature.

Features

1. Self-modulating free float provides continuous, smooth, low-velocity condensate discharge as process loads vary.
2. Constant water seal design ensures a steam-tight seal, even under low-load conditions.
3. JH7.5R-X: Thermostatic capsule (X-element) with "fail open" feature vents air automatically at close-to-steam temperature.
4. JH7.5R-B: Thermostatic bimetal air vent valve vents air automatically for rapid startup.
5. Built-in screen with large surface area ensures extended trouble-free operation.
6. Easy, inline access to internal parts simplifies cleaning and reduces maintenance costs.

Specifications

Model	JH7.5R-X	JH7.5R-B
Connection	Socket Welded, Flanged	Socket Welded, Flanged
Size	DN 40, 50, 80	DN 40, 50, 80
Orifice No.	2, 5, 10, 14, 22, 32	2, 5, 10, 14, 22, 32, 40, 46
Maximum Operating Pressure (barg) PMO	2, 5, 10, 14, 22, 32	2, 5, 10, 14, 22, 32, 40, 46
Maximum Differential Pressure (bar) ΔPMX	2, 5, 10, 14, 22, 32	2, 5, 10, 14, 22, 32, 40, 46
Maximum Operating Temperature (°C) TMO	240	400 / 425*
Type of Air Vent	X-element (6 °C subcooling)	Bimetal (vents air up to approx. 100 °C)

With PN flange.

WARNING

PRESSURE SHELL DESIGN CONDITIONS (NOT OPERATING CONDITIONS): Maximum Allowable Pressure (barg) PMA: 40 (JH7.5R-X), 46 (JH7.5R-B) Maximum Allowable Temperature (°C) TMA: 400 / 425 To avoid abnormal operation, accidents or serious injury, DO NOT use this product outside of the specification range.

Materials and Configuration

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
4	Orifice	-	-	-
5	Orifice Gasket	Soft Iron SUYP	1.1121	AISI1010
6	Orifice Plug	Cast Stainless Steel A351 Gr.CF8	1.4312	-
7	Orifice Plug Gasket	Soft Iron SUYP	1.1121	AISI1010
8	Screen	Stainless Steel SUS430	1.4016	AISI430
9	Screen Holder	Stainless Steel SUS304	1.4301	AISI304
10	Snap Ring	Stainless Steel SUS304	1.4301	AISI304
11	Cover Gasket	Graphite/Stainless Steel SUS304	-/1.4301	-/AISI304
12	Cover Bolt	Alloy Steel SNB16	1.7711	A193 Gr.B16
13	Cover Nut	Carbon Steel S45C	1.0503	AISI1045
16	Socket/Flange (DN 40, 50)	Carbon Steel A105	1.0460	-
16	Flange (DN 80)	Cast Steel A216 Gr.WCB	1.0619	-
17	Air Vent Unit	-	-	-
18	Air Vent Unit Gasket	Soft Iron SUYP	1.1121	AISI1010
19	Air Vent Guide	Stainless Steel SUS303	1.4305	AISI303
20	Drain Plug Gasket	Soft Iron SUYP	1.1121	AISI1010
21	Drain Plug	Carbon Steel S25C	1.0460	AISI1025

Dimensions

Socket Welded

DN	L (mm)	H (mm)	H1 (mm)	φW (mm)	φD (mm)	φC (mm)	h (mm)	Weight (kg)
40	466	389	291	305	64	48.8	13	51
50	466	389	291	305	77.5	61.2	16	56
80	506	389	291	305	112	89.8	-	65

Flanged

DN	L (DIN PN25/40)	L (ASME 150RF)	L (ASME 300RF)	L (ASME 600RF)	H (mm)	H1 (mm)	φW (mm)	Weight (kg)*
40	472	471	478	494	389	291	305	60
50	476	475	481	500	389	291	305	62
80	504	504	514	533	389	291	305	68

Weight is for DIN PN 25/40.

Discharge Capacity

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. Recommended safety factor: at least 1.5.

DANGER

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

JH7.5R-X

JH7.5R-B

Installation & Piping Arrangement

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 steam trap within the allowable inclination (horizontal and vertical tolerance). Make sure that the arrow mark on the body corresponds with the direction of flow.
4. 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.
5. 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 more than one trap is connected to the condensate collection pipeline.

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.

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.

Tightening Torques (JH7.5R-B)

Part	Torque (N·m)	Distance Across Flats (mm)
Cover Nut	200	30
Orifice	600	46
Orifice Plug	800	46
Drain Plug	100	26
Air Vent Valve Seat	30	19
Air Vent Guide	150	30

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
	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 valve seat 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 bimetal air vent valve surface and/or the air vent valve seat has a build-up or is scratched	Clean or replace with new bimetal and/or air vent valve seat
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