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Trap selection wrong??

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While checking a steam trap issue I noticed a possible wrong application. The trap is on a drip leg going into a heat distribution coil. The coil size is aprox 5x10. I have no other specks on this AHU. 8psi 4 inch line from a control valve. 1 inch line off the drip just before it goes into the coil. The trap is a TLV freefloat J5X-10 with a PMX of 150. Using temperature and ultrasound the trap seems to be discharging a lot of steam. Output temp is 210 or more. I changed the X element and verified through the test port ok. The condensate tank/pump is within 3 ft running 210 and venting . The other lines going to the tank are running temp in the 180s or less. Is this the wrong trap? Original documents indicate there was a Hoffman 54 in there.
coming to you from warm and sunny ND

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,529
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    Looks like an ok trap. So it's dripping the steam line between the control valve and the coil?

    The manual is attached if it helps. looks like it's made overseas. If parts are available you can rebuild it. If not it's probably cheaper to change it out
  • dopey27177
    dopey27177 Member Posts: 887
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    The placement of the drip trap is correct. It removes condensate from the steam before it goes into a control valve. As long as the temps are below steam temperature the trap is ok.
    Remember the higher the pressure the hotter the steam which means the condensate is hotter.

    Jake