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The principle and characteristics of plunger metering pump
Edit:Lianyungang Mi Lu Luo Pump Industry Co., Ltd   UpDate:2017-08-23

The plunger metering pump is directly sucked and discharged from the working medium (yellow) by reciprocating motion of the plunger. When the plunger and seal are in contact with the media, select the appropriate plunger material and seal form to ensure the ideal performance of the pump during operation. Plunger metering pumps include two types: valve and non-vacuum pumps. Plunger metering pump as a result of simple structure, high temperature, pressure, widely used in the petrochemical industry. The plunger material is stainless steel and oxidized ceramic. Oxidation of ceramic with corrosion resistance, high hardness characteristics. The principle and characteristics of plunger metering pump

In the absence of a conventional plunger pump, a valveless rotary piston pump is increasingly used in the measurement of syrup, chocolate and high viscosity medium oil additives under high viscosity conditions. Due to the lack of complete isolation between the metering medium and the lubricant of the pump, the plunger metering pump is subject to many limitations in the application of high moisture resistance requirements for fluid measurement. Piston metering pumps are used to accurately and quantitatively transport liquids that do not contain solid particles for pressurized or atmospheric pressure vessels and pipes. Different types of plunger metering pumps can be used to assemble frequency conversion motors (capable of receiving 4 - 20ma current signals) or explosion - proof motors. Plunger pump head structure is simple, economical, accurate, need to select and maintain. The level of automatic alignment between the plunger and the seal ensures wear between the two.

The principle and characteristics of plunger metering pump

1. Work flow pressure is greater, suitable for high pressure pump;
2. Can deliver high viscosity media, not recommended for the transport of corrosive slurries and hazardous chemicals;
3. Shaft seal for the packing seal, leakage. The preload of the packing must be adjusted regularly. The packaging and plunger are a pair of vulnerable parts.
4. Simple structure, easy maintenance, cost-effective;
5. It can adjust the length of the stroke to adjust the flow rate; inverter motor and inverter for the control of the motor flow, to achieve remote control.
6. It can be used to manufacture various types of insulating pumps that can be used as long parallel applications that can be used to add different liquids and different flow and pressure.