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

13

 

Troubleshooting

 

 

 

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 

 

 

When disassembling or removing the product, wait until the internal 

pressure equals atmospheric pressure and the surface of the product 

has cooled to room temperature. Disassembling or removing the 

product when it is hot or under pressure may lead to discharge of fluids, 

causing burns, other injuries or damage.

 

CAUTION 

 

If the product fails to operate properly, use the following table to locate and cause 
and appropriate remedy. 

Problem 

Cause 

Remedy 

No condensate is 
discharged 
(blocked) or 
discharge is poor 
 

The float is damaged or filled with 
condensate 

Replace with a new float 

The orifice opening, screen or piping are 
clogged with rust and scale 

Clean parts 

The X-element is scratched or damaged 

Replace with a new 
X-element 

Steam-locking has occurred 

Perform a bypass blowdown 
or close the trap inlet valve 
and allow the trap to cool 

The trap operating pressure exceeds 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 orifice 

The float is misshapen or has a build-up 

Clean or replace with new 
float 

Improper installation orientation 

Correct the installation 

Trap vibration 

Lengthen the inlet piping and 
fasten securely 

The air vent valve seating area of the 
X-element and/or air vent valve seat have 
a build-up or are scratched 

Clean the air vent valve 
seating area of the X-element 
and/or air vent valve seat or 
replace the X-element unit 

Steam is leaking 
from a place other 
than the outlet 

Gasket deterioration or damage 

Replace with new gasket(s) 

Improper tightening torques were used 

Tighten to the proper torque 

Float frequently 
becomes damaged 

Water hammer has occurred 

Study and correct the piping 

NOTE: When replacing parts with new, use the parts list for reference, and replace with parts from the 

Maintenance Kit, Repair Kit, etc. Please note that replacement parts are only available as part 
of a replacement parts kit.

 

 

 

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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