TLV HR150A thermodynamic steam trap for high pressures can be used without adjustment for small or medium capacity applications such as the drainage of high pressure and temperature steam mains and turbines.

Configuration

No.	Description	No.	Description
1	Body	11	Nameplate (not shown)
2	Cover	12	Cap
3	Module Valve Seat	13	Set Screw (not shown)
4	Disc	14	Guide Pin
5	Air Vent Ring	15	Flange
6	Disc Holder Ring	16	Cover Nut
7	Module Gasket (large)	17	Hexagon Nut
8	Module Gasket (small)	18	Eye Nut
9	Screen	19	Spacer
10	Cover Bolt

Specifications

• Minimum Operating Pressure: 1.6 MPaG (230 psig)
• Maximum Allowable Back Pressure: 50% of inlet pressure

WARNING

Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS. To avoid malfunctions, product damage, accidents or serious injury install properly and DO NOT use this product outside the specification range.

Proper Installation

1. The trap can be installed either horizontally or vertically, but make sure the arrow on the trap points in the direction of flow.
2. Before installation, be sure to remove all protective seals.
3. Before installing the trap, blow out the inlet piping to remove all dirt and oil.
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 maintenance.
7. Install a check valve at the trap outlet whenever more than one trap is connected to the condensate collection pipeline.
8. In order to avoid excessive back pressure, make sure the discharge pipes are large enough; (the outlet back pressure allowance should be no more than 50% of the inlet steam pressure).
9. We recommend unions 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.

1. Is the pipe diameter suitable?
2. Has sufficient space been secured for maintenance?
3. Have maintenance valves been installed at inlet and outlet? If the outlet is subject to back pressure, has a check valve been installed?
4. Is the inlet pipe as short as possible, with as few bends as possible, and installed so that the condensate will flow naturally down into the trap?

Start-up Procedure

IMPORTANT START-UP PROCEDURE

To ensure proper operation, slowly open the inlet valve slightly. Initially OPEN THE VALVE ONLY 1/32 TURN in order to supply steam to the trap very slowly, then WAIT FOR AT LEAST 30 SECONDS for air to vent before fully opening the inlet valve.

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.

State	Description
Normal	Condensate is discharged in a short blast followed by a longer period of no drainage. During the discharge, flash steam may be seen. A small amount of flash steam may be visible after the discharge.
Blocked	No condensate is discharged. The trap is quiet and makes no noise. 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 condensate, accompanied by a high-pitched sound.
Chattering	The trap does not close properly. Steam is discharged from the trap in short rapid bursts.

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:

• Sealing surfaces: Check for damage or dirt on the sealing surfaces
• Screen: Check for clogging or corrosion damage
• Disc: Check for wear and damage, scratches, on the surface where it contacts the valve seat, and dirt or oil film
• Module valve seat: Check discharge channel and grooves for rust and scale inside
• Body, Cover: Check inside for erosion, dirt, grease, rust or scale

Troubleshooting

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

Problem	Cause	Remedy
No condensate is discharged (blocked) or discharge is poor	Screen is clogged with rust or scale	Clean
	Disc is sticking to valve seat (due to oil, etc.)	Clean
	Steam-locking has occurred	Perform a bypass blow-down, or close the trap inlet valve and allow the trap to cool. Piping correction may also be required.
	Trap capacity is insufficient	Change to trap of suitable capacity
	Differential pressure is low	Study inlet/outlet pressure, including rise in outlet pipe
Steam leakage or blowing (from valve seat)	Valve closure is obstructed by scale, etc.	Clean or replace screen
	Disc or valve seat is worn	Replace worn parts
	Back pressure exceeds allowable value	Use within pressure range
	Trap is being used below minimum operating pressure	Use within pressure range
	Disc is sticking to top of cover (due to oil, etc.)	Clean
Valve chattering (Leakage)	Foreign matter or oil film on disc or valve seat	Clean
	Scratches on disc or valve seat	Replace disc or module valve seat
	Disc or valve seat is worn	Replace disc or module valve seat
Leakage from a location other than valve seat	Bypass valve is broken or open	Replace or close bypass valve
	Cover is loose or module gasket is damaged	Tighten cover or replace module gasket