What type of pump is a metering pump?
Metering Pump Specifications This is usually accomplished by adjusting the stroke length or amount of bypassed fluid. By the numbers, metering pumps have flow rate ranges between . 001 gallons per hour (gph) and 20 gallons per minute (gpm), or . 038 – 76 liters per minute.
Which pump is commonly used for metering?
Process diaphragm pumps can provide a smooth product flow across a wide operating range, including low speeds, and will accommodate the widest possible range of duties for all critical pressure processes.
How do you control a metering pump?
Since a metering pumps is usually a positive displacement pump there are two possible ways of controlling the flow capacity. The first one is by adjusting the volume of liquid displaced per stroke of the pump and the second is by adjusting the speed of the strokes.
What is metering gear pump?
Metering pumps They are required for many different applications such as textiles, linens, brushes, etc. WITTE dosing pumps ensure that the polymer melt in the process is transported evenly and reliably to the corresponding locations in the process. A constant flow rate is very important to ensure consistent quality.
What is a metering pump used for?
A metering pump moves a precise volume of liquid in a specified time period providing an accurate volumetric flow rate. Delivery of fluids in precise adjustable flow rates is sometimes called metering.
What is another name for internal pump metering?
A metering pump is used to add small but accurate volumes of a liquid to other fluid streams or vessels. Metering pumps are also called dosing pumps and proportioning pumps. A metering pump must be able to deliver liquid with an accuracy of greater than 3% across a wide range of discharge pressures.
How do metering pumps work?
Air operated diaphragm metering pumps use compressed air to drive a double diaphragm (two diaphragms) alternatively. A shuttle valve alternates the air flow between the two diaphragms. The flow of the media that is being pumped is adjusted by how much air pressure is supplied to the pump.
What is a chemical metering pump used for?
Water Treatment—pH Level Often, chemical metering pumps are metering sulfuric acid or caustic soda to help balance pH levels. Sulfuric acid helps reduce high alkalinity, and caustic helps neutralize acidic water. There are many other chemicals that can be used to balance pH, but these are two of the most common.
Is a gear pump a metering pump?
A gear pump is a type of metering pump Both pumps discharge a known volume with every revolution or cycle. There are several metering pump categories, including diaphragm, piston, gear and peristaltic, that feature a fixed-volume cavity to deliver the same volume with every pumping cycle.
How does a piston metering pump work?
Piston pumps Many metering pumps are piston-driven. When the piston moves out, a vacuum is created. Low pressure in the chamber causes liquid to enter and fill the chamber through the inlet check valve, but higher pressure at the outlet causes the outlet valve to shut.
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.
Where is metering pump used?
When are metering pumps used? Traditionally, metering pumps are used when the flow rate of a liquid needs to be regularly measured and adjusted to specific doses. They are commonly found to pump chemicals in water treatment applications, such as water for drinking, swimming pool or treatment in wastewater.
What are milroyal series metering pumps used for?
The MILROYAL® series metering pumps are the most reliable, industrial-duty metering pumps for critical processes in industries such as oil and gas, chemical and petrochemical processing, Drag Reducer Agent (DRA), and industrial water treatment.
What does Milton Roy drag reducer pump do?
Drag Reducer Agents (DRA). With decades of experience and a field proven design, Milton Roy’s DRA pumps provide precise injection at strategic points along a pipeline network to reduce turbulence and optimize flow efficiency. Chemical and Petrochemical Processing.
Which is the best LMI chemical metering pump?
The new PD Series metering pump adds advanced technology to one of LMI’s most popular pump. An industry standard for over 20 years, the Series B Chemical Metering Pump is a rugged, reliable choice for the harshest environments.
What do you need to know about Milton Roy mixers?
Top and side-entry mixers for every stage in the mixing process. Milton Roy offers a complete line of accessories designed to make even the most demanding dosing processes work smoothly. Pressure relief valves, backpressure valves, and pulsation dampeners are just a few of the items available to meet the needs of your process.