A Metering Pump is a pump which is mainly used for the purpose of pumping certain liquids. The main function that these pumps serve is to regulate or adjust the liquid flow through it. The flow which takes place from one end to the other is regulated according to a precise reading and over a period of time. This process if referred to as metering. Thus, the name itself suggests the function that the product is supposed to serve. The two main parts which are there in all metering pumps, and are the most essential for their functioning, are the motor and the pump head.
Like metering pumps, hydraulic pumps are also very useful and, in fact, are very simple to use and understand. It has a piston which pressurizes the liquid that is inside it. This liquid is, in most cases, oil or other similar stuff. This pressure and force is transferred to another piston which helps one in a lot of ways. Also, in order to increase the intensity of the force and the pressure that it puts, the pistons keep increasing in size. This helps in improving the functioning of the pumps and makes them much more efficient.
Another thing which needs to be taken care of is that the oil that is being pressurized should not have any bubbles in it. This is because if there are any bubbles, most of the force and pressure of the pumps is wasted in pressing and destroying those bubbles. Consequently, the end result is not efficient and of use as compared to the end result that is got when there are no bubbles. As far as a Hydraulic Pump is concerned, the pipes in which the oil is placed can be of varying lengths and even different shapes.