👉 A runtee is a type of valve that consists of two separate, overlapping flaps. These flaps are typically located on the top or bottom of the valve and are used to control the flow rate through the valve. The runtee can be either open (with no flow) or closed (with a full flow). Runtees are often used in mechanical systems such as pumps, compressors, and other industrial equipment where high pressure is required.