YL Series Hand Semi-Rotary Pump is suitable for pumping petrol, diesel, lube oil, kerosene, edible oil and so on, and also suitable for pumping water. The characteristics of YL series semi-rotary hand pumps are as follows, small size, easily installation, convenient operation, large capacity and high lift-distance. The material of main parts is Zinc-Alloy or Copper-Alloy to ensure a long service life.