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172-65456MA-04 (JH7RM-P)  14 Jul 2015 

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Contents

 

Introduction ....................................................................... 1

 

Safety Considerations ....................................................... 2

 

Checking the Piping .......................................................... 4

 

Operation .......................................................................... 5

 

Specifications .................................................................... 6

 

Configuration ..................................................................... 6

 

Installation ......................................................................... 7

 

Maintenance ...................................................................... 8

 

Disassembly / Reassembly ............................................... 9

 

Instructions for Plug / Holder Disassembly and Reassembly  12

 

Troubleshooting .............................................................. 13

 

Product Warranty ............................................................ 14

 

Options ............................................................................ 15

 

Introduction 

Thank you for purchasing the 

  Free Float Steam Trap. 

This product has been thoroughly inspected before being shipped from the factory. 
When the product is delivered, before doing anything else, check the specifications 
and external appearance to make sure nothing is out of the ordinary. Also be sure to 
read this manual carefully before use and follow the instructions to be sure of using 
the product properly. 

This instruction manual is edited based on the JH-P Series (with cover plug). The JH-
W Series (with socket welded cover connection), JH-F Series (with flanged cover 
connection) and JH-V Series (with manual air vent valve) are described at the end of 
this manual in the 'Option’ section.  

This free float steam trap employs a hinge-less and lever-less free float to rapidly, 
automatically and continuously discharge the inflowing condensate that is 
continuously generated inside the equipment, thus preventing the accumulation of 
condensate and thereby improving the heat transfer efficiency of the equipment. 

This steam trap also employs a precision-ground float and three-point seating that 
supports the float securely at three points and ensures a high degree of sealing when 
even only minute quantities of condensate are present. 

This free float steam trap is suitable for applications with the introduction of almost no 
air (such as process systems and steam-using equipment under long continuous 
operation, or superheated and saturated steam mains, branches and trace lines). 

If detailed instructions for special order specifications or options not contained in this 
manual are required, please contact

 for full details. 

This instruction manual is intended for use with the model(s) listed on the front cover. 
It is necessary not only for installation but for subsequent maintenance, 
disassembly/reassembly and troubleshooting. Please keep it in a safe place for 
future reference. 

Summary of Contents for JH7RM-P

Page 1: ...P 14 July 2015 Free Float Steam Trap JH7RM P Optional Models JH7RM W JH7RM F JH7RM V Copyright 2015 by TLV CO LTD All rights reserved ISO 9001 ISO 14001 Manufacturer Kakogawa Japan is approved by LRQA LTD to ISO 9001 14001 ...

Page 2: ...ption section This free float steam trap employs a hinge less and lever less free float to rapidly automatically and continuously discharge the inflowing condensate that is continuously generated inside the equipment thus preventing the accumulation of condensate and thereby improving the heat transfer efficiency of the equipment This steam trap also employs a precision ground float and three poin...

Page 3: ...reat 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 properly...

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: ...as a check valve TLV CK been installed 5 Is a bypass valve installed 6 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 7 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 conde...

Page 6: ...arge of Large Quantities of Condensate Increases in the condensate inflow rate cause the condensate level in the trap to rise The float consequently rises and enlarges the opening of the orifice A allowing more condensate to be discharged In this manner continuous condensate discharge occurs while the opening size of the orifice varies depending on the condensate flow rate 3 Closed Position When t...

Page 7: ...other injury CAUTION Refer to the product nameplate for detailed specifications Model Maximum Allowable Temperature TMA Maximum Allowable Pressure Maximum Operating Temperature Nominal Diameter Maximum Differential Pressure Valve No Production Lot No Maximum allowable pressure PMA and maximum allowable temperature TMA are PRESSURE SHELL DESIGN CONDITIONS NOT OPERATING CONDITIONS Valve No is displa...

Page 8: ...nspection 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 Install the product so the arrow on the bod...

Page 9: ...ontinuously 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...

Page 10: ...nd valve opening closing should be carried out only by trained maintenance personnel Drain Plug Part During Disassembly During Reassembly Drain Plug Remove with a socket wrench Consult the table of tightening torques and tighten to 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 ...

Page 11: ...ues 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 with anti seize Table of Tightening...

Page 12: ...RM P 14 Jul 2015 11 Exploded View Cover Plug Cover Plug Gasket Cover Nut Cover Cover Gasket Screen Screen Holder Float Cover Bolt Body Drain Plug Drain Plug Gasket Orifice Gasket Orifice Orifice Plug Gasket Orifice Plug ...

Page 13: ...e gasket onto the center of the gasket surface 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 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 Screw the plug holder by hand in...

Page 14: ...t Compare specifications and actual operating conditions Steam locking has occurred Perform a bypass blowdown or close the trap inlet valve and allow the trap to cool Air binding has occurred Perform a bypass blowdown or consider switching to a product with a built in air vent or air vent valve Steam is discharged or leaks from the outlet blowing steam leakage Clogged orifice opening or rust and s...

Page 15: ...roper 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 ...

Page 16: ... In principle steam traps automatically discharge inflowing condensate However if low temperature condensate in the piping blocks the trap inlet passage displacement inside the piping of steam by condensate is obstructed and condensate can no longer flow into the trap steam locking Traps only function in the presence of condensate inflow A pressure balancing line prevents the occurrence of steam l...

Page 17: ...ng burned by hot air or steam blowing from the air vent valve The exhaust port is a 2 mm 1 16 in diameter hole on the side of the air valve body DO NOT under any circumstances allow any unprotected part of your body to come in front of this hole 2 Never leave an open air vent valve unattended Tools required 1 open end wrench distance across flats 17 mm 21 32 in 2 long handled mirror to check for s...

Page 18: ...binding may also occur during the normal course of trap operation due to the slow accumulation of air inside the trap The air vent valve on the top of this trap is to be operated only when air binding has occurred Follow the instructions in the earlier part of this section to operate the air vent valve and release the air accumulated inside the trap The air vent valve is to be open only for as lon...

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