The Semi Rotary Hand Fuel Pump is the current choice for manual transfer of diesel fuel. This cost-effective reliable diesel transfer pump is available in a number of sizes offering different flow rates depending upon the individual customer requirements. Constructed from cast iron and featuring back plate lugs for easy mounting and removable inlet/outlet flanged, this hand fuel transfer pump is the ideal solution for many applications. The pump is operated by the movement of the handle which causes the shaft and the wing piston, fitted with flap valves, to semi-rotate within the pump. Also enclosed in the body of the pump is the suction divider, fitted with flaps. Gland packing compressed by the gland ring and nut acts as a seal between the shaft and the pump cover. The standard model has threaded flanges and is supplied with threaded counter flanges. Two lugs facilitate the mounting of the pump to a wall or similar structure.