Metering pump price, screw pump is a positive displacement rotary pump. When the outlet end is blocked, the pressure will gradually increase, thus exceeding the predetermined pressure value. At this time, the motor load increases sharply. The load of relevant parts of transmission machinery will also exceed the design value. In serious cases, the motor will burn down and the transmission parts will be damaged. In order to avoid damage of screw pump, oil return valve is usually installed at the outlet of screw pump to stabilize the outlet pressure.

How much is the metering pump? Keep the pump running normally. Plastic pump is a member of the pump family. The practical application shows that the pump has the characteristics of corrosion resistance, wear resistance, high temperature resistance, non aging, high mechanical strength, stable operation, advanced and reasonable structure, strict and reliable sealing performance, convenient disassembly and maintenance, etc. Engineering plastics are industrial plastics used as industrial parts or shell materials, which have excellent strength, impact resistance, heat resistance, hardness and aging resistance.

Engineering plastic pump is made of these materials, with special physical and chemical properties, can meet different industrial requirements. The chemical structure of engineering plastics is different, so the chemical resistance, friction characteristics and motor characteristics of engineering plastics pump are also different. Due to the different formability of engineering plastics, the application of engineering plastics pump is limited. Positive displacement pump is a kind of pump which uses the change of the internal volume of pump barrel to transport liquid.

Such as reciprocating pump, rotary pump, etc. Reciprocating pump is the use of reciprocating piston to transfer liquid pump, liquid in the form of static pressure energy directly transfer energy. Because the liquid is incompressible, when the piston extrudes the liquid, it can make the liquid bear a high pressure and obtain a high lift. The rotor pump is composed of a fixed pump shell and a rotating rotor. It has no suction and discharge valves.

The energy is directly applied to the liquid on the rotor side of the pump body in contact with the liquid in the form of static pressure, and the liquid is discharged through the extrusion action of the rotating rotor. At the same time, a space is left on the other side to form a low pressure, so that the liquid can be continuously inhaled. The rotor pump has high pressure head, low flow rate and even drainage, which is suitable for conveying high viscosity and lubricity liquid without solid particles.