The difference between three-screw and twin-screw and single-screw

single screw pump

I) Structural difference The single-head male spiral rotor of the single-screw pump rotates eccentrically in a special double-head female spiral stator (the stator is soft), and can swing back and forth along the center line of the pump, always keeping meshing with the stator. Click here to view the specific working principle of the single-screw […]

How to select a three-screw pump?

The medium that the three-screw pump can convey has good lubricity but does not contain corrosive solid particles. The following information is the detailed information of the three-screw pump selection, in which you can know how to choose your three-screw pump. Determine product parameters (1) Determine the applicability of the product. Get the working temperature […]

How to use and precautions for water ring vacuum pump What to do if the water ring vacuum pump cannot be pumped

What kind of vacuum pump is a water ring vacuum pump There are many types of vacuum pumps, and the circulating water vacuum pump is one of them. It is also called a water ring vacuum pump. It is a vacuum pump. It is based on the multi-purpose vacuum pump for circulating water. According to […]

How to select a metering pump?

1.How to select a metering pump Determine the pressure: The rated pressure of the selected metering pump should be slightly higher than the actual maximum pressure required, generally 10-20% higher. But don’t choose too high. Too high pressure will waste energy and increase equipment investment and operating costs. Determine the flow rate: The selected metering […]

How to select a vertical centrifugal pump?

Vertical centrifugal pump selection method: The main control parameters for the selection of vertical centrifugal pumps are the flow rate Q, head H, efficiency η, power, speed n, working pressure, required cavitation margin (NPSH), etc. of the water vertical centrifugal pump.To select a vertical centrifugal pump reasonably, it is necessary to comprehensively consider the comprehensive […]

What is a magnetic drive pump? What is the principle of magnetic pump water pump?

What is a magnetic drive pump? The magnetic pump is a branch of the water pump field. It is a new product that applies the working principle of a permanent magnetic coupling to a centrifugal pump. The magnetic pump consists of three parts: a pump, a magnetic transmission, and a motor. The magnetic transmission of […]

How to select a submersible pump?

The selection of submersible pumps should be based on the process flow, water supply and drainage requirements, and should be considered from five aspects: liquid delivery volume, device head, liquid properties, pipeline layout, and operating conditions. Let’s take a look at the specific submersible pump selection method and the precautions for using submersible pumps. 5 […]