HL-180 Small Manual Lubrication pump (Oil Pump) Bridgeport Lubricator.This pump belongs to pistion pump. Pressing the handle helps to absorb oil into the piston cavity.When handle recovers its position, left oil will be ejected. This pump together with resistant distributor form centralized lubrication system and it is suitable for lubrication equipments with 5-meter-long,3-meter-wide oil pipe consisting of around 20 lubrication points.