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172-65454MA-03  (JH7RL-X)    20  Oct  2020 

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Maintenance 

 

 

Take measures to prevent people from coming into direct contact with 

product outlets. Failure to do so may result in burns or other injury from 

the discharge of fluids.

 

CAUTION 

 

 

Be sure to use only the recommended components when repairing the 

product, and NEVER attempt to modify the product in any way. Failure to 

observe these precautions may result in damage to the product or burns 

or other injury due to malfunction or the discharge of fluids.

 

CAUTION 

 

Operational Check 

A visual inspection of the following items should be done on a daily basis to 
determine whether the product is operating properly or has failed. Periodically (at 
least biannually) the operation should also be checked by using diagnostic 
equipment, such as a stethoscope, thermometer, TLV Pocket TrapMan or TrapMan. 

If the product should fail, it may cause damage to piping and equipment, resulting in 
faulty or low quality products or losses due to steam leakage.   

Normal                                                 

:  Condensate is discharged continuously, together with flash steam, 

and the sound of flow can be heard. If there is very little 
condensate, there is almost no sound of flow. 

Blocked                                         
(Discharge Impossible) 

:  No condensate is discharged. The trap is quiet and makes no 

noise, and 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. 

(When conducting a visual inspection, flash steam is sometimes mistaken for steam leakage. For 
this reason, the use of a steam trap diagnostic instrument [TLV: TrapMan] in conjunction with the 
visual inspection is highly recommended.)

 

Flash Steam 

Live Steam Leakage 

 

 

 

Parts Inspection 

When parts have been removed, or during periodic inspections, use the following 
table to inspect the parts and replace any that are found to be defective. 

Procedure

 

Gaskets: Check for warping or scratches 

Screen: Check for clogging or corrosion 

X-element, Air Vent Valve Seat: Check for scratches 

Float: Check for scratches or dents 

Check for build-up inside the body 

Orifice Opening: Check for dirt, oil film, wear or scratches 

 

White jet 

containing 

water droplets

 

Clear, slightly 

bluish jet

 

Summary of Contents for JH7RL-X

Page 1: ...172 65454MA 03 JH7RL X 20 October 2020 Free Float Steam Trap with X element JH7RL X Copyright 2020 by TLV CO LTD All rights reserved ...

Page 2: ...ture and responds with great accuracy As a result air and the large quantities of condensate created immediately after the start up of operation are quickly discharged thereby greatly reducing start up time and also proving useful in valve operation bypass blowdown labor saving The X element is also sensitive to hot air during operation responding quickly and thus preventing the occurrence of air ...

Page 3: ...oses a threat of death or serious injury WARNING Indicates that there is a potential threat of death or serious injury CAUTION Indicates that there is a possibility of injury or equipment product damage 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 CAUTION Install...

Page 4: ...recommended components when repairing the product and NEVER attempt to modify the product in any way Failure to observe these precautions may result in damage to the product and burns or other injury due to malfunction or the discharge of fluids Use only under conditions in which no freeze up will occur Freezing may damage the product leading to fluid discharge which may cause burns or other injur...

Page 5: ...ack pressure has a check valve TLV CK been installed 5 Is the inlet pipe as short as possible with as few bends as possible and installed so the liquid will flow naturally down into the trap 6 Has the piping work been done correctly as shown in the figures below Requirement Correct Incorrect Install catchpot with the proper diameter Diameter is too small Make sure the flow of condensate is not obs...

Page 6: ...ising condensate level causes the float to rise due to buoyancy opening the orifice B and allowing condensate to be discharged 3 Hot Air Discharge Should hot air flow into the trap during normal operation the temperature of the X element drops causing it to momentarily contract and open the air vent valve A which allows for the rapid discharge of the air After the air is discharged and steam conta...

Page 7: ...product nameplate for detailed specifications Model Maximum Allowable Temperature TMA Maximum Allowable Pressure Nominal Diameter Maximum Differential Pressure Production Lot No Valve No Maximum Operating Temperature Maximum allowable pressure PMA and maximum allowable temperature TMA are PRESSURE SHELL DESIGN CONDITIONS NOT OPERATING CONDITIONS Valve No is displayed for products with options This...

Page 8: ...discharge of fluids CAUTION Installation inspection maintenance repairs disassembly adjustment and valve opening closing should be carried out only by trained maintenance personnel 1 Before installation be sure to remove all protective seals 2 Before installing the product open the inlet valve and blow out the piping to remove any piping scraps dirt and oil Close the inlet valve after blowdown 3 I...

Page 9: ...th flash steam and the sound of flow can be heard If there is very little condensate there is almost no sound of flow Blocked Discharge Impossible No condensate is discharged The trap is quiet and makes no noise and 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 ...

Page 10: ...the proper torque Drain Plug Gasket Remove the gasket and clean sealing surface Replace with a new gasket coat surfaces with anti seize Detaching Reattaching the Cover Part During Disassembly During Reassembly Cover Nut Remove with a socket wrench Consult the table of tightening torques and tighten to the proper torque Cover Remove by lifting up and off Make sure there are no pieces of the old gas...

Page 11: ...ult the table of tightening torques and tighten to the proper torque Orifice Plug Gasket Remove the gasket and clean sealing surface Replace with a new gasket coat surfaces with anti seize Orifice Remove with a socket wrench Consult the table of tightening torques and tighten to the proper torque Orifice Gasket Remove the gasket and clean sealing surface Replace with a new gasket coat surfaces wit...

Page 12: ... View X element Guide Air Vent Valve Seat Cover Nut Cover Cover Gasket Screen Screen Holder Float Drain Plug Drain Plug Gasket Cover Bolt Body Orifice Gasket Orifice Orifice Plug Gasket Orifice Plug Connector Connector Gasket X element Spring Clip ...

Page 13: ...e of the plug holder making sure the anti seize affixes the gasket tightly to the plug holder Check to make sure the gasket is not caught in the recesses of the threads 5 Hold the plug holder upside down to make sure that the anti seize makes the gasket stick to the plug holder even when the plug holder is held upside down 6 Screw the plug holder by hand into the product body while making sure tha...

Page 14: ...eeds the maximum specified pressure or whether there is insufficient pressure differential between the trap inlet and outlet Compare specifications and actual operating conditions Steam is discharged or leaks from the outlet blowing steam leakage Build up on the seating surface of the orifice or rust and scale build up beneath the float Clean parts Scratches on the orifice Replace with a new orifi...

Page 15: ...oper installation use handling etc by other than TLV CO LTD authorized service representatives 2 Malfunctions due to dirt scale rust etc 3 Malfunctions due to improper disassembly and reassembly or inadequate inspection and maintenance by other than TLV CO LTD authorized service representatives 4 Malfunctions due to disasters or forces of nature 5 Accidents or malfunctions due to any other cause b...

Page 16: ...le valve insert a flat head screwdriver into the slot on the top of the needle valve and Open Valve slowly turn counterclockwise Do not continue turning the needle valve past the point at which the snap ring contacts the bottom of the gland case See the table below to determine the amount of steam discharge Close Valve slowly turn clockwise Do not continue turning the needle valve past the point a...

Page 17: ...e MPa Discharge Capacity kg h Differential Pressure kg cm2 More than 1 5 turns 1 Turn Turn Turn Turn Number of turns from full closed position Differential Pressure psi Discharge Capacity lb h More than 1 5 turns 1 Turn Turn Turn Turn Number of turns from full closed position ...

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