A screw pump is a rotary pump that relies on the volume change and movement of the meshing space formed by the pump body and the screw to transport liquid or increase its pressure. Screw pumps are divided into single screw pumps, double screw pumps and three screw pumps according to the number of screws. […]

Both rotor pumps and screw pumps are volumetric pumps, and their performance is basically similar – both can smoothly convey high-viscosity materials and have high conveying pressures. So, what are the differences between rotor pumps and screw pumps? Different internal structure. The rotor pump conveys materials by rotating the two rotors in the opposite direction […]

Diesel engine water pumps are widely used in various situations. Here are several main usage scenarios: Industrial field: Diesel engine water pumps are a commonly used equipment in the industrial field, used to realize the circulation, transportation, and discharge of water in industrial production. For example, in chemical plants, petrochemicals, pharmaceuticals, textiles and other industries, […]

A Dosing pump is a special volumetric pump that can meet the needs of various strict process flows. The flow rate can be adjusted steplessly within the range of 0-100% and is used to transport liquids (especially corrosive liquids). A Dosing pump is also called a quantitative pump or a proportional pump. A Dosing pump […]

The starting of a pump or pump group is a light load start for the prime mover, and generally there will be no problems when starting. However, for some large units, due to the large inertia of the unit, it is difficult to start, and there is a large starting current when starting. If you […]

The function of the centrifugal pump outlet check valve is to prevent the liquid in the outlet pipeline from flowing back to form water hammer and damage the impeller in the pump. The installation of the check valve has nothing to do with the number of pumps. The check valve is mainly used to prevent […]

There are many types of centrifugal pumps. Although the structures of various types of pumps are different, the main components are basically the same. The main components are pump cover, pump body, impeller, stuffing box, pump shaft, shaft coupling, bearing and bracket, etc. 1.Type B pump; one end of the pump is supported by a […]

(1) Determination of liquid storage volume and liquid storage height of self-priming pump: The liquid storage volume refers to the volume of the liquid part that can be stored in the pump body after the pump is stopped, that is, the volume of the pump body below the low point of the pump suction inlet. […]