October 18, 2025

Chemical pump working principle

Chemical pumps are essential in various sectors of the chemical industry, playing a vital role in chemical processing, metallurgy, pharmaceuticals, and even in the production of thin films. These pumps operate on the principle of centrifugal force, which allows them to move liquids efficiently and continuously. Before a chemical pump is started, it is crucial that the pump casing and the suction pipe are completely filled with the liquid to be transported. This ensures that a vacuum is created within the system. Once the pump is turned on, the impeller—driven by a motor—spins at high speed. As the impeller rotates, it causes the liquid inside to spin along with it. Due to the centrifugal force generated, the liquid is pushed outward from the center of the impeller toward the outer edges. As the liquid moves outward, a low-pressure or vacuum area is formed at the center of the impeller. This pressure difference causes the surrounding liquid to be drawn into the pump through the suction pipe. The process continues as long as the impeller keeps rotating, allowing for a continuous flow of liquid. Once the liquid leaves the impeller, it enters the volute casing. Here, the design of the casing gradually expands, slowing down the liquid’s velocity. This slowdown helps convert some of the kinetic energy into static pressure, increasing the overall pressure of the fluid. The pressurized liquid is then directed through the discharge pipe to its intended destination. The entire operation relies on the continuous rotation of the impeller, which maintains the suction and discharge cycles. This makes chemical pumps highly effective for transferring various types of liquids, including corrosive or hazardous materials, in industrial settings. Their reliability and efficiency make them an indispensable part of modern chemical processing systems.

Steel Casting Valve Guards

All cylinders with a threaded necking are required to have cylinder caps in place when being stored full or empty. Compatible With Select cylinders, Product Type Cylinder cap. These caps have the durability to withstand cylinder falls and keep the valve protected Cylinder valve protection is paramount when moving or storing a cylinder.


Standards are engraved on the body. They can be engraved with marking, logo, etc.

They are supplied:
- raw
- zinc plated
- powder painted
- zinc & powder painted





Steel&Cast Iron Cylinder Guards,Steel Guards,Cylinder Valve Guard,Customized Steel Guards

Hangzhou Qizheng Trading Co., Ltd. , https://www.gascylindercap.com