Piping a Steam Coil control valve lifting condensate

Mark_45

I'm adding a steam coil that needs to lift the condensate 4 ft. The coil is located in an airhandler setting on a concrete floor. The system operates at 12 psi. The coil is controled by a modulating 2 way valve. The drop from the coil to the floor is 6". How should this be piped???

Tony Conner_2

Is The...

...boiler on all of the time when this coil is in service? Is there a fan moving the air across this coil, or face & bypass dampers? If you've got these conditions, then you could eliminate the steam control valve, leave the steam on, and use a thermostat to control the air flow, rather than the steam.

If the steam has to be controlled, then you're likely looking at a pumping trap. Spirax Sarco, Armstrong, etc make them.