Fuel pressure regulator
with backflow. Metal bowl variant with paper strainer
This regulator is a bypass / converter that allows to feed aspirated carburetted engines by a high pressure injection pump. Under any load (from idle to full throttle) and driving condition you will get a rocky fuel pressure adjustable from 0.1 to 0.4 bar together with high flow delivery.
All ports (IN from pump / OUT to carb / RETURN to tank on bowl bottom) have 8 mm tails.