Measuring Greatness One Drop at a Time

Think about trying to squeeze a dropper for hours on end, trying to release an exact volume of liquid each time you compressed the head of the dropper. When left to human control, this task is nearly impossible. Instead of relying on the hand of man, a metering pump is used to deliver fluids at a precise and adjustable flow rate.Though commonly associated with medical use, these metered systems also have practical applications in water treatment, printing, chemistry and other industries that require measured, long-term fluid flow. Professionals at PreFluid offer certified equipment for a variety of industries that include medicine, research and water treatment.

How They Work

Many of these pumps are driven by a piston mechanism designed to pump at constant flow rates into a high range of discharge pressures. A piston goes in and out of a chamber in the pump head; inlet and outlet lines are attached to this chamber which allow fluid to flow either in or out. Valves control fluid flow either in or out of the pump head but not in the reverse direction. A motor repeatedly drives the piston in and out of its chamber which causes the chamber volume to become smaller and larger. As the piston moves out a vacuum is created by low pressure, causing liquid to enter through the inlet valve. As the piston moves in, the pressure then increases which causes the outlet valve to open and force the liquid out. These alternating piston movements are repeated in a cycle in order to meter the liquid.

Uses in Medicine

If you’ve ever sat in a hospital and heard a methodical clicking noise coming from a strange machine with lots of tubes and bags of fluid, you’ve probably witnessed a peristaltic pump in action. Since a metering pump can imitate actions of the body, it has valuable uses in medicine. Used for Intravenous fluid delivery, blood transfusions and administration of medication, these pumps can save lives and reverse diseases that were previously fatal. Because of the way that the tubing is alternately compressed and released, fluid packets develop within the tubing. The size of these packet and the speed of the motor then dictates how frequently fluid is delivered to a patient. The machines control the delivery of medication more precisely and allow doses to be administered over longer periods of time.

Applications in Other Industries

While medical applications can save lives, use of these metered pumps in other industries can also save lives by creating safer working environments. Because of their ability to accommodate aggressive and corrosive fluids without damaging, a metered pump is useful in chemical processing, mining, water treatment, pulp and paper industries and many others. When it comes to selecting equipment that is right for your industry, seek a manufacture that has both safety and quality certifications. These certifications guarantee all the individual parts of your metering pump to work for your needs and lets you know that parts have been tested against industry standards. Save time and money by choosing pumps that you can trust and see how your operational performance can improve.

The mechanism by which pumps work can become quite an involved lesson in physics. Understanding the basic action of this equipment is enough to realize their value in industries using sensitive fluids. Be sure to work with manufacturers who certify their products to ensure that you are getting reliable, high-quality equipment.

For more information,please visit our website : prefluid.net

For more information: peristaltic pump