What is a metering pump used for?
Metering pumps, also called dosing pumps, are pumps that are designed to dispense specific amounts of fluid and measured flow control. They use expanding and contracting chambers to move the liquids.
Which type of pump can be used as a metering pump?
Traditionally, plunger or piston pumps, diaphragm pumps or peristaltic pumps are used for metering and dosing duties.
What are most metering pumps?
Most metering pumps are oscillating displacement pumps. An exactly defined volume of liquid is drawn into the displacement body on the reciprocal stroke and forced into the dosing line on the compression stroke.
Are metering pumps self priming?
This positive displacement pump is self-priming and can handle high suction lift applications. The downside to positive displacement pumps in metering applications can be their inability to run dry. Piston / diaphragm metering pumps are frequently used in municipal applications for dispensing PH additives.
Are metering pumps positive displacement?
Metering pumps can be considered a subset of positive displacement pumps. Both pumps discharge a known volume with every revolution or cycle. The discharge volume is largely independent of back pressure. What differentiates metering pumps from positive displacement pumps is their accuracy.
Is metering pump a centrifugal pump?
A metering pump is used to move fluids at precise flow rates over certain periods of time. This dosing ability means many different types of pumps can be considered metering pumps, whether they are positive displacement or centrifugal. That being said, most metering pumps are classified as diaphragm pumps.
What are metering valves?
Metering Valves that are designed to provide accurate and stable control of flow rates in analytical,instrumentation,and research applications.It is a valve with infinite positioning and variable control that is capable of regulating the flow of fluid. A needle valve is a type of metering valve.
How does a diaphragm metering pump work?
Diaphragm and peristaltic pumps Such motion changes the volume of a chamber in the pump head so that liquid enters through an inlet check valve during decompression and exits through an outlet check valve during compression, in a manner similar to piston pumps.
What is an electrically operated chemical metering pump?
Graco’s electrically operated chemical metering pumps are designed to transfer fluids for chemical dosing applications including water treatment, agricultural, swimming pools and pulp and paper manufacturing as well as a multitude of other uses. This pump is ideal in situations where very small volumes of liquid need to be continuously metered.
What are Graco metering pumps used for?
Metering Pumps Graco’s electrically operated chemical metering pumps are designed to transfer fluids for chemical dosing applications including water treatment, agricultural, swimming pools and pulp and paper manufacturing as well as a multitude of other uses.
How many quarts per day does a pneumatic metering pump produce?
Sidewinder pneumatic chemical metering pumps offer flows to 935 quarts per day (234 gallons per day) and operating pressures to 10,000 PSI. Pneumatic pumps come with two packing arrangements – Uniseal and O-ring construction.
What are the benefits of using a metering pump?
The pump gives you precise fingertip control. You have total control over the pumps feed rates, which gives you more flexibility when planning your chemical dosing. Easily adjust the stroke length for your metering pump to meet your technical requirements. Have Questions? Let’s Talk.