Difference between Drain Pan and Drain Rim
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API 610, 10th edition, 6.3.1: Horizontal pumps shall be equipped with single-piece drain-rim or drain-pan baseplates. The rim or pan of the baseplate shall be sloped at least 1 in 120 toward the pump end, where a tapped drain opening of at least DN 50 (2 NPS) shall be located to ensure complete drainage. Does anyone know what the difference between a Drain-rim and a Drain-Pan is? A drain-pan is a liquid receptacle; what about a drain-rim?
It’s been such a long time since that post; I’ve forgotten about it. Through my work, I have gradually come to understand the difference between the two. I share this below; please correct me if there are any mistakes. \"Pan\" refers to the entire liquid receiving tray; the whole base, or just a part of the base (such as only the area below the pump), can serve as a liquid collection tray. The rim refers to the band of accumulated fluid that surrounds the outer edge of the base; in many cases, channel steel is welded around the outer edge of the base with its open side facing upward.