TLV JH7.2R-B is a reliable and durable cast steel free float steam trap for use on medium-size and high-pressure process equipment. The inline repairable steam trap features a thermostatic bimetal air vent valve that automatically vents air for rapid startup. It is suitable for a wide range of applications with pressures up to 46 barg.

The self-modulating free float provides continuous, smooth, low-velocity condensate discharge as process loads vary, while a constant water seal design ensures a steam-tight seal even under low-load conditions. A built-in screen with a large surface area ensures extended trouble-free operation, and its inline access to internal parts simplifies cleaning and reduces maintenance costs.

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.

WARNING

Install properly and DO NOT use this product outside the recommended operating pressure, temperature and other specification ranges. DO NOT use this product in excess of the maximum operating pressure differential. Such use could make discharge impossible. Wait until the internal pressure equals atmospheric pressure and the surface of the product has cooled to room temperature before disassembling or removing the product.

Configuration

No.	Description	No.	Description	No.	Description
1	Body	13	Cover Gasket	25	Snap Ring
2	Cover	14	Connector	26	Drain Plug Gasket
3	Float	15	Connector Gasket	27	Drain Plug
4	Orifice	16	Snap Ring	28	Orifice Locknut
5	Orifice Gasket	17	Air Vent Case	29	Outlet Cover Bolt
6	Orifice Plug	18	Bimetal Plate	30	Outlet Cover Nut
7	Plug/Cover Gasket	19	Air Vent Screen	31	Screen Holder Retainer
8	Float Cover	20	Air Vent Valve Seat	32	Air Vent Guide Gasket
9	Screen	21	Air Vent Valve Plug	33	Air Vent Guide
10	Flange or Socket	22	Snap Ring	34	Eye Bolt
11	Cover Bolt	23	Nameplate
12	Cover Nut	24	Screen Holder

Specifications

Pressure Shell Design Conditions (Not Operating Conditions):

• Maximum Allowable Pressure (PMA): 46 barg
• Maximum Allowable Temperature (TMA): 400 °C / 425 °C (with PN flange)

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 (in/out)	Stainless Steel SUS430/304	1.4016/1.4301	AISI430/304
10	Cover Gasket	Graphite/Stainless Steel SUS316L	-/1.4404	-/AISI316L

Installation and Piping

INFO

Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.

1. Before installation, remove all protective seals.
2. Blow out the inlet piping to remove dirt and oil.
3. Install the steam trap within the allowable inclination (horizontal) and ensure the arrow mark on the body corresponds with the flow direction.
4. Install the trap in the lowest part of the pipeline or equipment so the condensate flows naturally by gravity. The inlet pipe should be short and have few bends.
5. Support pipes properly within 800 mm on either side of the trap.
6. Install a bypass valve to discharge condensate, and isolation valves for maintenance.
7. Install a check valve at the outlet if connecting to a common condensate return line.

Piping Arrangement:

• Install a catchpot with the proper diameter.
• Connect the inlet pipe 25-50 mm above the base of the T-pipe to prevent rust and scale from flowing into the trap.
• Make sure nothing obstructs the flow of condensate at a blind end.

Inspection and Maintenance

Operational inspections should be performed at least twice per year.

Parts Inspection Procedure
Body, Cover(s)	Check inside for damage, dirt, grease, oil film, rust or scale
Gaskets	Check for warping or damage
Bimetal Plate	Check for damage
Air Vent Valve (and Seat)	Check for damage
Screen(s)	Check for clogging, corrosion or damage
Float	Check for deformation, damage, oil film or water inside
Orifice Opening	Check for rust, scale, oil film, wear or damage

TIP

Tighten cover nuts to 150 N·m (24 mm across flats) and orifice to 350 N·m (38 mm) for the JH7.2R-B model. Orifice plug should be tightened to 700 N·m (46 mm).

Operational Check

• 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 surface temperature is low.
• Blowing: Live steam continually flows from the outlet with a continuous metallic sound.
• Steam Leakage: Live steam is discharged together with condensate and there is a high-pitched sound.

Troubleshooting

Problem	Cause	Remedy
No condensate is discharged (blocked)	Float is damaged or filled with condensate	Replace float
	Orifice, screen or piping are clogged	Clean
	The bimetal is damaged	Replace bimetal
	Operating pressure exceeds max specified, or insufficient differential pressure	Compare specs and actual conditions
	Steam locking has occurred	Blowdown through bypass or close inlet valve and allow cooling
Steam is discharged or leaks (blowing)	Rust and scale accumulated around valve seat or under float	Clean
	Orifice is damaged	Replace orifice
	Float is deformed or coated with scale	Clean or replace float
	Trap installed above maximum allowable inclination	Correct installation
	Vibration of trap	Lengthen inlet piping, fasten securely
	Bimetal air vent valve surface/seat has build-up or scratch	Clean or replace bimetal/seat
Steam leaks from other places	Deterioration or damage to gaskets	Replace gaskets
	Improper tightening torque for cover	Tighten to proper torque
Float frequently damaged	Water hammer occurs	Examine piping for water hammer causes

Dimensions

• DN 40, 50 Socket Welded: L = 401 mm, H = 320 mm, H1 = 244 mm, W = 250 mm. Weight: ~35-38 kg.
• DN 40, 50 Flanged (PN25/40): L = 407-411 mm, H = 320 mm. Weight: 35-40 kg.

Discharge Capacity

Capacities are based on continuous discharge of condensate 6 °C below saturated steam temperature. A recommended safety factor of at least 1.5 should be applied.