You might have 50 psi feeding but the slightest restriction in the “drain” will immediately send oil past the exhaust seals, burning up oil . In the case of remote mounted  systems, rear mounted systems, or in systems mounted below the engine oil level, some form of positive scavenging has to be engineered. That is where this pump comes into play.
This pump is a gear pump, the best kind of pump for oil scavenging. Bronze gears.

Brass pump body. No diaphragms to fail like our competitors pumps. Gear design for maximum scavenge.
12vdc with splash resistant wiring. 3/8″ female entry and exit with 1/2″ barbed fitting included. The same oil that it scavenges also lubes up its gears.