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HP Steam Drip Leg - Vertical Life-Short nipple. Concern

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Hi
I am new to this site and in the field. I would be honored to have some feedback with all your experience and expertise. The following picture is a new installation of a drip leg off of the inlet for a High Pressure Steam-Reducing station that is not reactivated yet. HP 150-170# to 68# to 7#. Anyhow, as you can see the contractor did a vertical lift to a very short nipple and a few turns. *Can we have possible issues with this type of drip leg installation? 1) When the station is live or 2) When the station is shut down for period of time due to repairs in the building, say for a day?

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,532
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    It should be fine. I am assuming there is a check valve after the steam trap. You will get some minor noise on a cold start up untill the steam pressure comes up high enough to lift the condensate up the riser. Looks like 2-3' of rise so as soon as you reach 1 1/2 psi you should be fine.

    It would have been better to have come off the side of the drip elbow down 6" with the valve on the down riser then turn horizontal and put the strainer, trap and check on the horizontal with short nipples and then turn up as soon as you leave the check valve and then put the other valve on. In other words minimize the horizontal pipe that can hold water. The outlet from the trap should go p and then back down into the top of the return which I think it does.