Abstract: Disclosed is a simple steam trap muffler. It is comprised of two comentric pipes which are both welded at their first ends to the exhaust pipe of a steam trap. The steam and condensate flows into the inner pipe from the exhaust pipe. The inner pipe has its opposite end capped so that the steam and condensate can not flow to the atmosphere through this inner pipe. However, the inner pipe does have orifices in its circumferential side through which this fluid can flow into the annular space between the first and second concentric pipes. There is no cap on the second end of the outer pipe. Thus the fluid flows along this annular space and out of the muffler through this open end of the outer pipe.