Why are reciprocating pumps generally used for metering and dosing purposes?

Traditionally, reciprocating pumps employing plungers, pistons or diaphragms are used for metering and dosing duties. These pumps have the inherent ability to maintain a consistent flow rate over a wide and varying pressure range.

Why we use reciprocating pump?

2.2. Reciprocating pumps are used where a precise amount of fluid is required to be delivered, also where the delivery pressure required is higher than can be achieved with other types. The fluid is moved by the means of a piston that travels in a cylinder.

Which pumps are commonly used for chemical dosing?

Gear pumps, piston pumps, peristaltic pumps, and diaphragm type pumps are all available pumps to consider when injecting chemicals.

Why we use dosing pump?

The pumps are often used to add a caustic chemical or an acid to a water storage tank to neutralize the pH. Dosing pumps are also regularly used as a chlorine pump to kill bacteria. Certain versions are designed for challenging situations, such as high temperatures and high pressure.

How do you use a chemical dosing pump?

A dosing pump draws a measured amount of liquid into its chamber and injects the chemical into a tank or pipe that contains the fluid that is being dosed. It’s powered by an electric motor or an air actuator and has a controller that turns the pump on and off and manages the flow rate.

On which factor does the reciprocating pumps are classified?

Explanation: Reciprocating pumps are also called as force pumps. It helps to lift the liquid by the help of a pressure and thus it is called as a force pump. Explanation: Reciprocating pumps are classified according to the number of cylinders. And also it classified according to the number of piston sides.

Why is reciprocating pump more efficient?

Reciprocating pumps run at a much lower speed than centrifugal pumps. By increasing speed, the packing and sealing life of the machine can be compromised. Balancing speed and plunger size can improve reliability and increase plunger and sealing life.

Why Priming is important in reciprocating pumps?

Its flow rate capacity is high as compared to reciprocationg pump. Its flow is continues. Its suction and discharge valves are not opened or closed periodically. So priming is necessary to remove air or gases from piping and pump body to reduce the phenomena of Gaseous Cavitation.

How do chemical dosing pumps work?

The pump draws a fixed volume of a chemical into the chamber, and then injects it into a pipe or a tank that may contain water or fluid to be dosed. The pump is driven by an air actuator or an electric motor.

Where are dosing pumps used?

Metering or dosing pumps are used extensively for controlled chemical addition to a process. They can be of almost any type depending on the metering accuracy required.

What is chemical dosing system?

A chemical dosing system is a facility for automated injection of reagents into a wastewater network for the control of septicity and odour emissions. These systems are typically used at pump stations, sewer manholes, and rising mains.

How does a reciprocating pump work?

The reciprocating pump works on the principle of positive displacement. A reciprocating piston pump consists of a piston that moves back and forth in a cylinder. The piston is connected with a crankshaft with the help of a connecting rod. This piston moves as the connecting rod move due to the motion of the crankshaft.

What is reciprocating pump and how it works?

Reciprocating pumps are used when a certain quantity of liquid needs to be transported from the lower level to a higher level. Higher level means pressure should be high enough. In this case, a certain volume of liquid is collected within the pump enclosed area and increased the pressure in line with requirements.

What is the maximum speed of a reciprocating pump?

Small pumps for clean liquids can operate at speeds up to 1500rpm which require valves to operate successfully at frequencies up to 25Hz. Reciprocating pumps are used for a wide variety of applications not just high pressure.

What is a dosing pump and how does it work?

How Does a Dosing Pump Work? A dosing pump draws a measured amount of liquid into its chamber and injects the chemical into a tank or pipe that contains the fluid that is being dosed. It’s powered by an electric motor or an air actuator and has a controller that turns the pump on and off and manages the flow rate.

How does a chemical injection pump work?

Drawing in the piston fills the chamber, and a specific amount of chemical is injected at a preset speed, usually a percentage of the maximum flow rate. Certain pump models are capable of variable dosing rates.