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172-65129A-03  (GAS1N/GAS2N/GAS3N)    23  Oct  2018

 

14 

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 

 

When the product fails to operate properly, use the following table to locate the 
cause and 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 trap operating pressure 
exceeds the maximum specified 
pressure or there is insufficient 
pressure differential between the 
trap inlet and outlet 

Compare specifications and 
actual operating conditions 

The specific gravity of the fluid is 
not suitable for this product   

Consult TLV 

Gas is discharged 
or leaks from the 
outlet* 
(blowing) 
(gas leakage) 

Rust and scale have built-up 
around the orifice or beneath the 
float 

Clean parts 

The orifice is scratched or 
damaged 

Replace with a new orifice 

The float is misshapen or coated 
with scale 

Clean or replace with a new float 

Improper installation orientation 

Correct the installation 

Trap vibration 

Lengthen the inlet piping and 
fasten it securely 

Gas 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 

* The GAS1N/GAS2N/GAS3N with metal valve seat has a minimum condensate load 

requirement to ensure proper sealing (see “Specifications”).   

 

Summary of Contents for GAS1N

Page 1: ...GAS2N GAS3N 23 October 2018 Manufacturer 881 Nagasuna Noguchi Kakogawa Hyogo 675 8511 Japan Tel 81 0 79 422 1122 Fax 81 0 79 422 0112 Copyright 2018 by TLV CO LTD All rights reserved Free Float Gas Tr...

Page 2: ...persons caused by explosions poisoning or other accidents due to use with hazardous fluids This free float gas trap uses a precision polished float and three point seating for the valve body With no h...

Page 3: ...n which poses 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 pro...

Page 4: ...t is hot or under pressure may lead to discharge of fluids causing burns other injuries or damage Take measures to ensure the proper handling such as recovery or dilution of hazardous fluids discharge...

Page 5: ...outlet is subject to back pressure has a check valve 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 th...

Page 6: ...and after disassembly maintenance 2 Condensate Discharge As condensate enters the trap the float rises due to buoyancy opening the orifice and allowing condensate to be discharged Increasing condensa...

Page 7: ...ecifications GAS1N Model Maximum Allowable Temperature TMA Maximum Allowable Pressure Maximum Operating Temperature Nominal Diameter Valve No Production Lot No Maximum Differential Pressure GAS2N GAS3...

Page 8: ...te 12 Drain Plug 13 Drain Plug Gasket 14 Flange Socket 15 Guide Pin 16 Eye Bolt 17 Holder Rod No Name 1 Body 2 Cover 3 Orifice 4 Float 5 Orifice Gasket 6 Cover Gasket 7 Cover Bolt 8 Cover Nut 9 Plug 1...

Page 9: ...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 Instal...

Page 10: ...n the trap cover and the dry portion of the receiver tank or gas main Connect the pressure balancing line in the following manner Receiver Tank Gas Main Secondary Side Precautions Take measures to ens...

Page 11: ...ethoscope or thermometer 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 discharg...

Page 12: ...with a socket wrench Consult the table of tightening torques and tighten to the proper torque Drain Plug Gasket Remove the gasket Replace with a new gasket coat surfaces with anti seize Removing Reat...

Page 13: ...lug 100 73 26 1 GAS3N Cover Nut 250 185 27 1 1 16 Orifice 300 220 32 1 1 4 Plug 300 220 36 1 13 32 Drain Plug 150 110 30 1 3 16 NOTE Coat all threaded portions with anti seize The same tightening torq...

Page 14: ...ing are clogged with rust and scale Clean parts The trap operating pressure exceeds the maximum specified pressure or there is insufficient pressure differential between the trap inlet and outlet Comp...

Page 15: ...pecifications or 10 failure to follow the instructions contained in the TLV Instruction Manual for the Product Duration Of Warranty This warranty is effective for a period of the earlier of i three 3...

Page 16: ...SSES WHERE DUE TO OPERATION OF LAW CONSEQUENTIAL AND INCIDENTAL DAMAGES UNDER THIS WARRANTY UNDER ANY OTHER EXPRESS WARRANTY NOT NEGATED HEREBY OR UNDER ANY IMPLIED WARRANTY NOT NEGATED HEREBY INCLUDI...

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