The PM20 hand pumps are manually operated single delivery hydraulic pumps. They are suitable for feeding single-acting or dipping hydraulic cylinders. The displacement is fixed: 20cc/cycle. The cycle is double pumped, therefore it generates pressure in both movements of the lever and the value of the displacement is therefore referred to the operation of the pump in both directions. This type of hand pumps is particularly suitable for emergency controls. The PM20 is a pump for panel installation. The suction of the fluid from the tank occurs through the application of a tube to the inlet port.