Oil Thief with Slide Valve
Manufacturer: Robinson Manufacturing Company
The Robinson slide valve designed thief is made in three models, clear barrel, brass barrel and aluminum barrel. All three models offer the following features: single trip action, full opening with slide valve closure, two adjustable springs, hanger on the top casting for hanging the thief on the tank hatch, adjustable graduated trip rod and hexagon shaped closure spring adjuster head for easier spring adjustment.