The metering pump produced by the metering pump manufacturer controls the flow rate and conveying speed by controlling the opening and closing of the inlet and outlet valves. The clearance between the gears or impeller inside the pump is one of the key parameters for the flow rate, and the larger the clearance, the greater the flow rate. Pressure is the main factor in the transportation of viscous liquids by metering pumps. The pressure applied by the metering pump can increase the flow rate of the liquid, promoting smooth fluid flow. The higher the pressure, the greater the flow rate.

A volumetric metering pump accurately measures the volume inside the pump, usually achieved through structural forms such as gears and screws. The gear metering pump mainly consists of two gears, which rotate to suck in and discharge liquid. Screw metering pumps are usually composed of two screws, one as the driving screw and the other as the driven screw, which suck in and discharge liquid through the rotation of the two screws. The volumetric metering pump has high accuracy and is suitable for measuring high viscosity liquids.

Detailed introduction of the metering part of the metering pump by the metering pump manufacturer

The metering part is a crucial part of the metering pump, which achieves accurate flow measurement and control through the design of reasonable metering chambers, valves, seals, and other devices.

(1) The metering part of a gear pump mainly consists of a suction chamber, a compression chamber, and interconnected flow channels. By using different assembly methods and adjustment methods, different precision and volume measurements can be achieved.

(2) The metering part of a plunger pump mainly consists of the gap between the plunger and the pump body, and the stroke of the plunger is controlled through mechanisms such as connecting rods and cranks to achieve metering. Plunger pumps generally use self supplying oil, and their accuracy may decrease under conditions with rapid flow changes.

(3) The metering part of a diaphragm pump mainly consists of a diaphragm, an air chamber, a suction port, and an outlet. The diaphragm pump changes the pressure inside the chamber through the reciprocating motion of the diaphragm, thereby achieving liquid metering. Diaphragm pumps have high measurement accuracy, good reliability, and are suitable for metering control of high viscosity fluids.

A rotary pump consists of two synchronously rotating rotors and a pump body. The pump body is filled with gaps. When a rotating rotor passes through the pump body, the medium in the gap is forced to be pushed to the other rotor, then compressed and pushed towards the outlet. Rotary pumps are suitable for conveying high viscosity liquids, such as syrup, and can maintain stable flow and pressure during the conveying process.

The metering pump has a wide range of applications. In the fields of chemical engineering, petroleum, papermaking, printing and dyeing, environmental protection, etc., metering pumps can be used to transport various acids, alkalis, salts, chemical solutions, petroleum, high-temperature hot oil, high-pressure gas and other chemical, gas, liquid, etc. In the pharmaceutical and food industries, metering pumps are suitable for conveying high viscosity materials such as slurries.